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Schedule III (Details) (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Real Estate and Accumulated Depreciation [Line Items]
Beginning balance	$ 3,619,145,000	$ 3,338,036,000	$ 3,341,257,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Real estate assets, beginning balance	3,338,036,000	3,341,257,000	3,272,904,000
Acquisitions, development and improvements	329,674,000	104,199,000	167,624,000
Cost of real estate sold and retired	(48,565,000)	(107,420,000)	(99,271,000)
Real estate assets, ending balance	3,619,145,000	3,338,036,000	3,341,257,000
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Real estate accumulated depreciation, beginning balance	830,153,000	782,557,000	714,224,000
Depreciation expense	120,812,000	117,639,000	115,603,000
Real estate sold and retired	(49,665,000)	(70,043,000)	(47,270,000)
Real estate accumulated depreciation, ending balance	901,300,000	830,153,000	782,557,000
Reconciliation of Total Accumulated Depreciation to Balance Sheet [Abstract]
Total real estate accumulated depreciation per Schedule III	901,300,000	830,153,000	782,557,000
Real estate assets, net, held for sale	0	(5,012,000)	(1,484,000)
Total real estate accumulated depreciation	901,300,000	835,165,000	784,041,000
Reconciliation of Total Real Estate Assets to Balance Sheet [Abstract]
Total real estate assets per Schedule III	3,619,145,000	3,338,036,000	3,341,257,000
Development in process exclusive of land included in Schedule III	0	4,524,000	0
Real estate assets, net, held for sale	0	(15,376,000)	(5,940,000)
Total real estate assets	3,619,145,000	3,348,888,000	3,347,197,000
Atlanta, GA - 1700 Century Circle [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,482,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	2,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(8,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,474,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,476,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	510,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Atlanta, GA - 1700 Century Circle [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 1700 Century Circle [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 1800 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,444,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	29,081,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,484,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,444,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	41,565,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	43,009,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	16,099,000
Real Estate and Accumulated Depreciation, Date of Construction	1975
Atlanta, GA - 1800 Century Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 1800 Century Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 1825 Century Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	864,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	303,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	15,280,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,167,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,280,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	16,447,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,625,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Atlanta, GA - 1825 Century Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 1825 Century Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 1875 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,924,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,114,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,038,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,038,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,595,000
Real Estate and Accumulated Depreciation, Date of Construction	1976
Atlanta, GA - 1875 Century Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 1875 Century Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 1900 Century Boulevard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,744,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	775,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,519,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,519,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,225,000
Real Estate and Accumulated Depreciation, Date of Construction	1971
Atlanta, GA - 1900 Century Boulevard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 1900 Century Boulevard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 2200 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	14,432,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,767,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	18,199,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	18,199,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,015,000
Real Estate and Accumulated Depreciation, Date of Construction	1971
Atlanta, GA - 2200 Century Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 2200 Century Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 2400 Century Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	406,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,642,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	406,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,642,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,048,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,273,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Atlanta, GA - 2400 Century Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 2400 Century Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 2500 Century Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	328,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,317,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	328,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,317,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,645,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,353,000
Real Estate and Accumulated Depreciation, Date of Construction	2005
Atlanta, GA - 2500 Century Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 2500 Century Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 2500/2635 Parking Garage [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,242,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,242,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,242,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	951,000
Real Estate and Accumulated Depreciation, Date of Construction	2005
Atlanta, GA - 2500/2635 Parking Garage [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 2500/2635 Parking Garage [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 2600 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	10,679,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,114,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,793,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,793,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,706,000
Real Estate and Accumulated Depreciation, Date of Construction	1973
Atlanta, GA - 2600 Century Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 2600 Century Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 2635 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	21,643,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,034,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	25,677,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	25,677,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	10,261,000
Real Estate and Accumulated Depreciation, Date of Construction	1980
Atlanta, GA - 2635 Century Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 2635 Century Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 2800 Century Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	20,449,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,991,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	23,440,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,440,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	8,595,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Atlanta, GA - 2800 Century Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 2800 Century Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 50 Glenlake [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,500,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	20,006,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,153,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,500,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,159,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	24,659,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	8,039,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Atlanta, GA - 50 Glenlake [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 50 Glenlake [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 6348 Northeast Expressway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	275,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,655,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	199,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	275,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,854,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,129,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	734,000
Real Estate and Accumulated Depreciation, Date of Construction	1978
Atlanta, GA - 6348 Northeast Expressway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 6348 Northeast Expressway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - 6438 Northeast Expressway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	179,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,216,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	420,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	179,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,636,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,815,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	986,000
Real Estate and Accumulated Depreciation, Date of Construction	1981
Atlanta, GA - 6438 Northeast Expressway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - 6438 Northeast Expressway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Bluegrass Lakes I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	816,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	336,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,909,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,152,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,909,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,061,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,052,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Atlanta, GA - Bluegrass Lakes I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Bluegrass Lakes I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Bluegrass Place I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	491,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,061,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	344,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	491,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,405,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,896,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	953,000
Real Estate and Accumulated Depreciation, Date of Construction	1995
Atlanta, GA - Bluegrass Place I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Bluegrass Place I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Bluegrass Place II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	412,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,583,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	103,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	412,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,686,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,098,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	954,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Atlanta, GA - Bluegrass Place II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Bluegrass Place II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Bluegrass Valley [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,500,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	374,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,425,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,874,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,425,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,299,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,140,000
Real Estate and Accumulated Depreciation, Date of Construction	2000
Atlanta, GA - Bluegrass Valley [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Bluegrass Valley [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Bluegrass Valley Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	19,711,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(14,810,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,901,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,901,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Atlanta, GA - Bluegrass Valley Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - Bluegrass Valley Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - Century Plaza I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,290,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,567,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,441,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,290,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,008,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,298,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,968,000
Real Estate and Accumulated Depreciation, Date of Construction	1981
Atlanta, GA - Century Plaza I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Century Plaza I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Century Plaza II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,380,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,733,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,941,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,380,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,674,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,054,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,886,000
Real Estate and Accumulated Depreciation, Date of Construction	1984
Atlanta, GA - Century Plaza II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Century Plaza II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Chastain Place I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	451,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	341,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,525,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	792,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,525,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,317,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,026,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Atlanta, GA - Chastain Place I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Chastain Place I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Chastain Place II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	599,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	194,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,505,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	793,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,505,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,298,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	454,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Atlanta, GA - Chastain Place II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Chastain Place II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Chastain Place III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	539,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	173,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,359,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	712,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,359,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,071,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	462,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Atlanta, GA - Chastain Place III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Chastain Place III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Corporate Lakes [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,265,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,243,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,067,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,265,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,310,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,575,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,112,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Atlanta, GA - Corporate Lakes [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Corporate Lakes [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - DHS.ICE [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,100,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	2,576,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	15,874,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	5,676,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,874,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	21,550,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,273,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Atlanta, GA - DHS.ICE [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - DHS.ICE [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - FAA at Tradeport [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	52,109,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,196,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	1,416,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	15,143,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,612,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,143,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,755,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,637,000
Real Estate and Accumulated Depreciation, Date of Construction	2009
Atlanta, GA - FAA at Tradeport [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - FAA at Tradeport [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Gwinnett Distribution Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,119,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,960,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,864,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,119,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,824,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,943,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,909,000
Real Estate and Accumulated Depreciation, Date of Construction	1991
Atlanta, GA - Gwinnett Distribution Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Gwinnett Distribution Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Henry County Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,010,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	13,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,023,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,023,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Atlanta, GA - Henry County Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - Henry County Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - Highwoods Center I at Tradeport [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	307,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	139,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,218,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	446,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,218,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,664,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	730,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Atlanta, GA - Highwoods Center I at Tradeport [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Highwoods Center I at Tradeport [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Highwoods Center II at Tradeport [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	641,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	181,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,968,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	822,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,968,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,790,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	73,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Atlanta, GA - Highwoods Center II at Tradeport [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Highwoods Center II at Tradeport [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Highwoods Center III at Tradeport [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	409,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	130,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,183,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	539,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,183,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,722,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	549,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Atlanta, GA - Highwoods Center III at Tradeport [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Highwoods Center III at Tradeport [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Highwoods Riverpoint IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,037,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	858,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,799,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,895,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,799,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,694,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	903,000
Real Estate and Accumulated Depreciation, Date of Construction	2009
Atlanta, GA - Highwoods Riverpoint IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Highwoods Riverpoint IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - National Archives and Records Administration [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,484,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	17,833,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,484,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	17,833,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	19,317,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,543,000
Real Estate and Accumulated Depreciation, Date of Construction	2004
Atlanta, GA - National Archives and Records Administration [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - National Archives and Records Administration [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Newpoint Place I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	819,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	356,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,237,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,175,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,237,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,412,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	963,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Atlanta, GA - Newpoint Place I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Newpoint Place I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Newpoint Place II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,499,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	394,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,092,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,893,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,092,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,985,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,008,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Atlanta, GA - Newpoint Place II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Newpoint Place II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Newpoint Place III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	668,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	253,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,870,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	921,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,870,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,791,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	608,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Atlanta, GA - Newpoint Place III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Newpoint Place III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Newpoint Place IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	989,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	406,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,365,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,395,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,365,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,760,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,129,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Atlanta, GA - Newpoint Place IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Newpoint Place IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Newpoint Place V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,150,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	816,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,101,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,966,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,101,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,067,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,898,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Atlanta, GA - Newpoint Place V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Newpoint Place V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Norcross I & II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	323,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,000,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	698,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	323,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,698,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,021,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,076,000
Real Estate and Accumulated Depreciation, Date of Construction	1970
Atlanta, GA - Norcross I & II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Norcross I & II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Nortel [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,342,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	32,111,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	379,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,342,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	32,490,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	35,832,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	11,293,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Atlanta, GA - Nortel [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Nortel [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - River Point Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	7,250,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	4,524,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,668,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	11,774,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,668,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,442,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	142,000
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Atlanta, GA - River Point Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - River Point Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - Riverwood 100 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	67,809,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	5,785,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	64,913,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,426,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	5,785,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	66,339,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	72,124,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	896,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Atlanta, GA - Riverwood 100 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Riverwood 100 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - South Park Residential Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	50,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	7,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	57,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	57,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Atlanta, GA - South Park Residential Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - South Park Residential Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - South Park Site Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,204,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	754,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,958,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,958,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Atlanta, GA - South Park Site Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - South Park Site Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - Southside Distribution Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	804,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,553,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,152,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	804,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,705,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,509,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,400,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Atlanta, GA - Southside Distribution Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Southside Distribution Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Tradeport I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	557,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	261,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,498,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	818,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,498,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,316,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	963,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Atlanta, GA - Tradeport I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Tradeport I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Tradeport II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	557,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	261,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,003,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	818,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,003,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,821,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	691,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Atlanta, GA - Tradeport II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Tradeport II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Tradeport III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	673,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	370,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,663,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,043,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,663,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,706,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	777,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Atlanta, GA - Tradeport III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Tradeport III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Tradeport IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	667,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	365,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,679,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,032,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,679,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,711,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	913,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Atlanta, GA - Tradeport IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Tradeport IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Tradeport Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	5,243,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(387,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,856,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,856,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Atlanta, GA - Tradeport Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - Tradeport Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Atlanta, GA - Tradeport V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	463,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	180,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,116,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	643,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,116,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,759,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	431,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Atlanta, GA - Tradeport V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Tradeport V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Atlanta, GA - Two Point Royal [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,793,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	14,964,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,536,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,793,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	17,500,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	19,293,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,087,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Atlanta, GA - Two Point Royal [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Atlanta, GA - Two Point Royal [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Baltimore, MD - Sportsman Club Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	24,931,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(23,147,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,784,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,784,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Baltimore, MD - Sportsman Club Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Baltimore, MD - Sportsman Club Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Greenville, SC - Brookfield Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,500,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,514,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,870,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,500,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,384,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,884,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,561,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Greenville, SC - Brookfield Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - Brookfield Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Greenville, SC - Brookfield-Jacobs-Sirrine [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,050,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	17,280,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(23,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,580,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,027,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,860,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	24,887,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	8,997,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Greenville, SC - Brookfield-Jacobs-Sirrine [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - Brookfield-Jacobs-Sirrine [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Greenville, SC - MetLife at Brookfield [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,039,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	352,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,863,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,391,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,863,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,254,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,902,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Greenville, SC - MetLife at Brookfield [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - MetLife at Brookfield [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Greenville, SC - Patewood I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	942,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,117,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,164,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	942,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,281,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,223,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,793,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Greenville, SC - Patewood I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - Patewood I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Greenville, SC - Patewood II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	942,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,176,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	989,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	942,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,165,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,107,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,623,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Greenville, SC - Patewood II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - Patewood II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Greenville, SC - Patewood III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	842,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,776,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	472,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	842,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,248,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,090,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,995,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Greenville, SC - Patewood III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - Patewood III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Greenville, SC - Patewood IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,219,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,918,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,215,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,219,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,133,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,352,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,477,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Greenville, SC - Patewood IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - Patewood IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Greenville, SC - Patewood V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,690,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,589,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,133,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,690,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,722,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,412,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,173,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Greenville, SC - Patewood V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - Patewood V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Greenville, SC - Patewood VI [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,360,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	321,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,760,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,681,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,760,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,441,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,749,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Greenville, SC - Patewood VI [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Greenville, SC - Patewood VI [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Kansas City, MO - Country Club Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	14,286,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	146,879,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(198,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	121,202,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	14,088,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	268,081,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	282,169,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	90,289,000
Real Estate and Accumulated Depreciation, Date of Construction	1920-2002
Kansas City, MO - Country Club Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Kansas City, MO - Country Club Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Kansas City, MO - Land - Hotel Land - Valencia [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	978,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	111,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,089,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,089,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Kansas City, MO - Land - Hotel Land - Valencia [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Kansas City, MO - Land - Hotel Land - Valencia [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Kansas City, MO - Neptune Apartments [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,098,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,282,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	665,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,098,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,947,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,045,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,339,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Kansas City, MO - Neptune Apartments [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Kansas City, MO - Neptune Apartments [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Kansas City, MO - One Ward Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	681,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,937,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,643,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	681,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,580,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,261,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,942,000
Real Estate and Accumulated Depreciation, Date of Construction	1980
Kansas City, MO - One Ward Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Kansas City, MO - One Ward Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Kansas City, MO - Park Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	67,809,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,384,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,410,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,355,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,384,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,765,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,149,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,510,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Kansas City, MO - Park Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Kansas City, MO - Park Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Kansas City, MO - Two Brush Creek [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	984,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,402,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,263,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	984,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,665,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,649,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,879,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Kansas City, MO - Two Brush Creek [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Kansas City, MO - Two Brush Creek [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Kansas City, MO - Valencia Place Office [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	67,809,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,576,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	970,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	33,822,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,546,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	33,822,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	36,368,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	12,002,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Kansas City, MO - Valencia Place Office [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Kansas City, MO - Valencia Place Office [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - 3400 Players Club Parkway [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,005,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	207,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,353,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,212,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,353,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,565,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,063,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Memphis, TN - 3400 Players Club Parkway [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - 3400 Players Club Parkway [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - 6000 Poplar Ave [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,340,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,385,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(849,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,488,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,491,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,873,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,364,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,608,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Memphis, TN - 6000 Poplar Ave [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - 6000 Poplar Ave [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - 6060 Poplar Ave [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,980,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,677,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(404,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,206,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,576,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,883,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,459,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,400,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Memphis, TN - 6060 Poplar Ave [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - 6060 Poplar Ave [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Atrium I & II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,570,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,253,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,257,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,570,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,510,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,080,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,242,000
Real Estate and Accumulated Depreciation, Date of Construction	1984
Memphis, TN - Atrium I & II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Atrium I & II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Centrum [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,013,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,580,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,454,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,013,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,034,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,047,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,772,000
Real Estate and Accumulated Depreciation, Date of Construction	1979
Memphis, TN - Centrum [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Centrum [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Comcast Corporation [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	946,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,621,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	946,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,621,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,567,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,395,000
Real Estate and Accumulated Depreciation, Date of Construction	2008
Memphis, TN - Comcast Corporation [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Comcast Corporation [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - International Place II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	4,884,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	27,782,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,220,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,884,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	32,002,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	36,886,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	12,653,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Memphis, TN - International Place II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - International Place II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Penn Marc [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	7,376,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,607,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	10,240,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,457,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,607,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,697,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,304,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,451,000
Real Estate and Accumulated Depreciation, Date of Construction	2008
Memphis, TN - Penn Marc [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Penn Marc [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Shadow Creek I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	924,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	466,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,797,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,390,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,797,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,187,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,086,000
Real Estate and Accumulated Depreciation, Date of Construction	2000
Memphis, TN - Shadow Creek I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Shadow Creek I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Shadow Creek II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	734,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	467,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,094,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,201,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,094,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,295,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,801,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Memphis, TN - Shadow Creek II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Shadow Creek II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Southwind Office Center A [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,004,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,694,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	282,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,347,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,286,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,041,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,327,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,663,000
Real Estate and Accumulated Depreciation, Date of Construction	1991
Memphis, TN - Southwind Office Center A [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Southwind Office Center A [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Southwind Office Center B [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,366,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,754,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	901,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,366,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,655,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,021,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,312,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Memphis, TN - Southwind Office Center B [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Southwind Office Center B [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Southwind Office Center C [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,070,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	221,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,088,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,291,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,088,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,379,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,643,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Memphis, TN - Southwind Office Center C [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Southwind Office Center C [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Southwind Office Center D [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	744,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	193,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,914,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	937,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,914,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,851,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,491,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Memphis, TN - Southwind Office Center D [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Southwind Office Center D [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - The Colonnade [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,300,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,481,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	267,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	254,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,567,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,735,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,302,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,343,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Memphis, TN - The Colonnade [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - The Colonnade [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - ThyssenKrupp [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,040,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	25,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,342,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,065,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,342,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,407,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,832,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Memphis, TN - ThyssenKrupp [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - ThyssenKrupp [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - FBI Jackson [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	52,109,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	871,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	296,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	36,372,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,167,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	36,372,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	37,539,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,522,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Memphis, TN - FBI Jackson [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - FBI Jackson [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Crescent Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	40,015,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	7,875,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	32,756,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,424,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	7,875,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	35,180,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	43,055,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,813,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Memphis, TN - Crescent Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Crescent Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Memphis, TN - Triad Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,253,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	33,671,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,253,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	33,671,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	34,924,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,715,000
Real Estate and Accumulated Depreciation, Date of Construction	2009
Memphis, TN - Triad Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Memphis, TN - Triad Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - 3322 West End [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,025,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	27,490,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,527,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,025,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	31,017,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	34,042,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,876,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Nashville, TN - 3322 West End [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - 3322 West End [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - 3401 West End [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	5,862,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	22,917,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,247,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	5,862,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	28,164,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	34,026,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	11,653,000
Real Estate and Accumulated Depreciation, Date of Construction	1982
Nashville, TN - 3401 West End [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - 3401 West End [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - 5310 Maryland Way [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,863,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,201,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	225,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,863,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,426,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,289,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,916,000
Real Estate and Accumulated Depreciation, Date of Construction	1994
Nashville, TN - 5310 Maryland Way [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - 5310 Maryland Way [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - BNA Corporate Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	18,506,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,287,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	26,793,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	26,793,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	10,526,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Nashville, TN - BNA Corporate Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - BNA Corporate Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Century City Plaza I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	903,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,919,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(2,407,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	903,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,512,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,415,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,864,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Nashville, TN - Century City Plaza I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Century City Plaza I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Cool Springs 1 & 2 Deck [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,958,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,958,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,958,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	413,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Nashville, TN - Cool Springs 1 & 2 Deck [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Cool Springs 1 & 2 Deck [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Cool Springs 3 &4 Deck [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	67,809,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,418,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,418,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,418,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	525,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Nashville, TN - Cool Springs 3 &4 Deck [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Cool Springs 3 &4 Deck [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Cool Springs I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,583,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	15,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,429,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,598,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,429,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,027,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,019,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Nashville, TN - Cool Springs I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Cool Springs I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Cool Springs II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,824,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	346,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	18,677,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,170,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	18,677,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,847,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,377,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Nashville, TN - Cool Springs II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Cool Springs II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Cool Springs III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,631,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	804,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	17,857,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,435,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	17,857,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,292,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,252,000
Real Estate and Accumulated Depreciation, Date of Construction	2006
Nashville, TN - Cool Springs III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Cool Springs III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Cool Springs IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	67,809,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,715,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	21,299,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,715,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,299,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,014,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,432,000
Real Estate and Accumulated Depreciation, Date of Construction	2008
Nashville, TN - Cool Springs IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Cool Springs IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Cool Springs V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,688,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	295,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	52,486,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,983,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	52,486,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	56,469,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,848,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Nashville, TN - Cool Springs V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Cool Springs V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Harpeth on the Green II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,419,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,677,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,293,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,419,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,970,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,389,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,758,000
Real Estate and Accumulated Depreciation, Date of Construction	1984
Nashville, TN - Harpeth on the Green II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Harpeth on the Green II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Harpeth on the Green III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,660,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,649,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,924,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,660,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,573,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,233,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,245,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Nashville, TN - Harpeth on the Green III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Harpeth on the Green III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Harpeth on the Green IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,713,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,842,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,475,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,713,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,317,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,030,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,104,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Nashville, TN - Harpeth on the Green IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Harpeth on the Green IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Harpeth on The Green V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	662,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	197,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,261,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	859,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,261,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,120,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,505,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Nashville, TN - Harpeth on The Green V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Harpeth on The Green V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Hickory Trace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,164,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	164,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,009,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,328,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,009,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,337,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,381,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Nashville, TN - Hickory Trace [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Hickory Trace [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Highwoods Plaza I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,552,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	307,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,355,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,859,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,355,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,214,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,452,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Nashville, TN - Highwoods Plaza I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Highwoods Plaza I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Highwoods Plaza II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,448,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	307,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,825,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,755,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,825,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,580,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,072,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Nashville, TN - Highwoods Plaza II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Highwoods Plaza II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Lakeview Ridge II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	605,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	187,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,254,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	792,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,254,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,046,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,475,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Nashville, TN - Lakeview Ridge II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Lakeview Ridge II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Lakeview Ridge III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,073,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	400,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,537,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,473,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,537,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,010,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,587,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Nashville, TN - Lakeview Ridge III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Lakeview Ridge III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Seven Springs - Land I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,122,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	1,399,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,521,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,521,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Nashville, TN - Seven Springs - Land I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Nashville, TN - Seven Springs - Land I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Nashville, TN - Seven Springs - Land II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,715,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(1,025,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,690,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,690,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Nashville, TN - Seven Springs - Land II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Nashville, TN - Seven Springs - Land II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Nashville, TN - Seven Springs I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,076,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	592,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,898,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,668,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,898,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,566,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,288,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Nashville, TN - Seven Springs I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Seven Springs I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - SouthPointe [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,655,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	310,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,717,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,965,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,717,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,682,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,209,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Nashville, TN - SouthPointe [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - SouthPointe [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Southwind Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,662,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(1,477,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,185,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,185,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Nashville, TN - Southwind Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Nashville, TN - Southwind Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Nashville, TN - The Ramparts at Brentwood [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,394,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	12,806,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,145,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,394,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,951,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,345,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,434,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Nashville, TN - The Ramparts at Brentwood [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - The Ramparts at Brentwood [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Westwood South [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,106,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	382,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,950,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,488,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,950,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,438,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,640,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Nashville, TN - Westwood South [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Westwood South [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Nashville, TN - Winners Circle [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,497,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,258,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,306,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,497,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,564,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,061,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,841,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Nashville, TN - Winners Circle [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Nashville, TN - Winners Circle [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Orlando, FL - Berkshire at Metro Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,265,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	672,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,802,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,937,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,802,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,739,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,400,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Orlando, FL - Berkshire at Metro Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Orlando, FL - Berkshire at Metro Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Orlando, FL - Capital Plaza III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,994,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	18,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,012,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,012,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Orlando, FL - Capital Plaza III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Orlando, FL - Capital Plaza III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Orlando, FL - Eola Park Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,027,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,027,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,027,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Orlando, FL - Eola Park Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Orlando, FL - Eola Park Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Orlando, FL - In Charge Institute [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	501,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	14,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,339,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	515,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,339,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,854,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	576,000
Real Estate and Accumulated Depreciation, Date of Construction	2000
Orlando, FL - In Charge Institute [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Orlando, FL - In Charge Institute [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Orlando, FL - MetroWest 1 Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,100,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	51,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,151,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,151,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Orlando, FL - MetroWest 1 Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Orlando, FL - MetroWest 1 Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Orlando, FL - Metrowest Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,354,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,687,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(164,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	490,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,190,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,177,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,367,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,441,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Orlando, FL - Metrowest Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Orlando, FL - Metrowest Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Orlando, FL - MetroWest Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,034,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(148,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,886,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,886,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Orlando, FL - MetroWest Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Orlando, FL - MetroWest Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Orlando, FL - Windsor at Metro Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	2,060,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,055,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,060,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,055,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,115,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,747,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Orlando, FL - Windsor at Metro Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Orlando, FL - Windsor at Metro Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 101 Stratford [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,205,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,916,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,548,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,205,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,464,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,669,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,297,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Piedmont Triad, NC - 101 Stratford [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 101 Stratford [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 150 Stratford [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,788,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,511,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(2,788,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(11,511,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	1991
Piedmont Triad, NC - 150 Stratford [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 150 Stratford [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 160 Stratford - Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	967,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(967,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	0
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Piedmont Triad, NC - 160 Stratford - Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Piedmont Triad, NC - 160 Stratford - Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Piedmont Triad, NC - 6348 Burnt Poplar [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	724,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,900,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	415,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	724,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,315,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,039,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,542,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Piedmont Triad, NC - 6348 Burnt Poplar [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 6348 Burnt Poplar [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 6350 Burnt Poplar [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	341,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,374,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	249,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	341,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,623,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,964,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	657,000
Real Estate and Accumulated Depreciation, Date of Construction	1992
Piedmont Triad, NC - 6350 Burnt Poplar [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 6350 Burnt Poplar [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7341 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	113,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	841,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	364,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	113,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,205,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,318,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	475,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - 7341 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7341 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7343 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	72,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	555,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	298,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	72,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	853,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	925,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	298,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - 7343 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7343 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7345 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	66,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	492,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	214,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	66,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	706,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	772,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	263,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - 7345 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7345 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7347 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	97,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	719,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	256,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	97,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	975,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,072,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	365,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - 7347 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7347 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7349 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	53,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	393,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	133,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	53,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	526,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	579,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	183,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - 7349 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7349 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7351 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	106,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	788,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	158,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	106,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	946,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,052,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	370,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - 7351 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7351 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7353 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	123,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	912,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	135,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	123,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,047,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,170,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	397,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - 7353 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7353 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7355 West Friendly Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	72,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	538,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	128,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	72,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	666,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	738,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	249,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - 7355 West Friendly Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7355 West Friendly Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Building 1 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	379,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,516,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	580,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	379,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,096,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,475,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	835,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Piedmont Triad, NC - Airpark East-Building 1 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Building 1 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Building 2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	462,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,849,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	409,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	462,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,258,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,720,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	878,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Piedmont Triad, NC - Airpark East-Building 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Building 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Building 3 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	322,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,293,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	492,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	322,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,785,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,107,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	691,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Piedmont Triad, NC - Airpark East-Building 3 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Building 3 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Building A [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	510,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,921,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,644,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	510,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,565,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,075,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,781,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Piedmont Triad, NC - Airpark East-Building A [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Building A [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Building B [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	739,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,237,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	908,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	739,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,145,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,884,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,916,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - Airpark East-Building B [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Building B [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Building C [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,393,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,576,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,582,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,393,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,158,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,551,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,987,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Piedmont Triad, NC - Airpark East-Building C [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Building C [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Building D [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	850,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	699,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,898,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,549,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,898,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,447,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,356,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Piedmont Triad, NC - Airpark East-Building D [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Building D [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Copier Consultants [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	224,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,068,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	301,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	224,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,369,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,593,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	669,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Piedmont Triad, NC - Airpark East-Copier Consultants [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Copier Consultants [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-HewlettPackard [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	465,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	380,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,051,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	845,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,051,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,896,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	411,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Piedmont Triad, NC - Airpark East-HewlettPackard [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-HewlettPackard [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Highland [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	145,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,081,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	353,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	145,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,434,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,579,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	540,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Piedmont Triad, NC - Airpark East-Highland [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Highland [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Inacom Building [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	265,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	270,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	977,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	535,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	977,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,512,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	329,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Piedmont Triad, NC - Airpark East-Inacom Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Inacom Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Service Center 1 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	237,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,103,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	186,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	237,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,289,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,526,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	515,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark East-Service Center 1 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Service Center 1 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Service Center 2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	192,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	946,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	340,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	192,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,286,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,478,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	566,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark East-Service Center 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Service Center 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Service Center 3 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	305,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,219,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	375,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	305,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,594,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,899,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	602,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark East-Service Center 3 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Service Center 3 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Service Center 4 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	225,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	928,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	85,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	225,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,013,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,238,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	426,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark East-Service Center 4 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Service Center 4 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Service Court [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	171,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	777,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	213,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	171,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	990,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,161,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	389,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Piedmont Triad, NC - Airpark East-Service Court [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Service Court [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Simplex [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	271,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	239,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	999,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	510,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	999,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,509,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	420,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Piedmont Triad, NC - Airpark East-Simplex [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Simplex [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Warehouse 1 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	356,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,613,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	196,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	356,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,809,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,165,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	777,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark East-Warehouse 1 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Warehouse 1 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Warehouse 2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	374,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,523,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	393,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	374,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,916,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,290,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	765,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark East-Warehouse 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Warehouse 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Warehouse 3 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	341,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,486,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	582,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	341,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,068,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,409,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	940,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Piedmont Triad, NC - Airpark East-Warehouse 3 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Warehouse 3 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark East-Warehouse 4 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	659,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,676,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	637,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	659,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,313,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,972,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,314,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - Airpark East-Warehouse 4 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark East-Warehouse 4 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark North - DC1 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	860,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,919,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	576,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	860,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,495,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,355,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,431,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Piedmont Triad, NC - Airpark North - DC1 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark North - DC1 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark North - DC2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,302,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,392,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	707,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,302,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,099,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,401,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,335,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Piedmont Triad, NC - Airpark North - DC2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark North - DC2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark North - DC3 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	450,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,517,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	795,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	450,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,312,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,762,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	908,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - Airpark North - DC3 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark North - DC3 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark North - DC4 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	452,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,514,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	147,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	452,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,661,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,113,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	730,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Piedmont Triad, NC - Airpark North - DC4 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark North - DC4 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark South Warehouse 1 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	546,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,591,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	546,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,591,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,137,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,034,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Piedmont Triad, NC - Airpark South Warehouse 1 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark South Warehouse 1 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark South Warehouse 2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	749,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,509,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	749,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,509,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,258,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	790,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Piedmont Triad, NC - Airpark South Warehouse 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark South Warehouse 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark South Warehouse 3 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	603,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,273,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	603,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,273,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,876,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	672,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Piedmont Triad, NC - Airpark South Warehouse 3 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark South Warehouse 3 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark South Warehouse 4 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	499,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,162,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	499,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,162,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,661,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	650,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Piedmont Triad, NC - Airpark South Warehouse 4 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark South Warehouse 4 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark South Warehouse 6 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,733,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,570,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,733,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,570,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,303,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,507,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Piedmont Triad, NC - Airpark South Warehouse 6 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark South Warehouse 6 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark West 1 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	944,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,831,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	995,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	944,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,826,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,770,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,006,000
Real Estate and Accumulated Depreciation, Date of Construction	1984
Piedmont Triad, NC - Airpark West 1 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark West 1 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark West 2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	887,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,550,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	516,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	887,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,066,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,953,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,699,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark West 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark West 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark West 4 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	227,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	907,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	420,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	227,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,327,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,554,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	589,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark West 4 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark West 4 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark West 5 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	243,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	971,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	441,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	243,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,412,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,655,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	531,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark West 5 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark West 5 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Airpark West 6 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	327,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,309,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	814,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	327,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,123,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,450,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	847,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Airpark West 6 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Airpark West 6 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Brigham Road - Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	7,059,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(3,720,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,339,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,339,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Piedmont Triad, NC - Brigham Road - Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Piedmont Triad, NC - Brigham Road - Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Piedmont Triad, NC - Consolidated Center/ Building I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	625,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,183,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(235,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	306,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	390,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,489,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,879,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,285,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Piedmont Triad, NC - Consolidated Center/ Building I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Consolidated Center/ Building I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Consolidated Center/ Building II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	625,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,435,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(203,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,083,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	422,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,352,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,774,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,635,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Piedmont Triad, NC - Consolidated Center/ Building II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Consolidated Center/ Building II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Consolidated Center/ Building III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	680,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,572,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(217,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(963,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	463,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,609,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,072,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,253,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Piedmont Triad, NC - Consolidated Center/ Building III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Consolidated Center/ Building III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Consolidated Center/ Building IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	376,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,655,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(123,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(359,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	253,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,296,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,549,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	647,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Piedmont Triad, NC - Consolidated Center/ Building IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Consolidated Center/ Building IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Deep River Corporate Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,041,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,892,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,230,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,041,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,122,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,163,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,511,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Piedmont Triad, NC - Deep River Corporate Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Deep River Corporate Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Enterprise Warehouse I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	453,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	360,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,896,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	813,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,896,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,709,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	793,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Piedmont Triad, NC - Enterprise Warehouse I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Enterprise Warehouse I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Enterprise Warehouse II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,733,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	881,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,431,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,614,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,431,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	16,045,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,636,000
Real Estate and Accumulated Depreciation, Date of Construction	2006
Piedmont Triad, NC - Enterprise Warehouse II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Enterprise Warehouse II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Enterprise Warehouse III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	814,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,589,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	814,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,589,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,403,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	365,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Piedmont Triad, NC - Enterprise Warehouse III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Enterprise Warehouse III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Forsyth Corporate Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	329,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,867,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,030,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	329,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,897,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,226,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,417,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Piedmont Triad, NC - Forsyth Corporate Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Forsyth Corporate Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Highwoods Park Building I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,476,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,052,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,476,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,052,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,528,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,205,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Piedmont Triad, NC - Highwoods Park Building I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Highwoods Park Building I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Jefferson Pilot Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	11,759,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(4,311,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	7,448,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,448,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Piedmont Triad, NC - Jefferson Pilot Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Piedmont Triad, NC - Jefferson Pilot Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Piedmont Triad, NC - Regency One-Piedmont Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	515,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	383,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,352,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	898,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,352,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,250,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	896,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Piedmont Triad, NC - Regency One-Piedmont Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Regency One-Piedmont Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Regency Two-Piedmont Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	435,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	288,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,160,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	723,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,160,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,883,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	764,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Piedmont Triad, NC - Regency Two-Piedmont Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Regency Two-Piedmont Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - 7023 Albert Pick [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	834,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,459,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	441,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	834,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,900,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,734,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,627,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Piedmont Triad, NC - 7023 Albert Pick [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - 7023 Albert Pick [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - The Knollwood -380 Retail [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	193,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	194,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	194,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	110,000
Real Estate and Accumulated Depreciation, Date of Construction	1995
Piedmont Triad, NC - The Knollwood -380 Retail [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - The Knollwood -380 Retail [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - The Knollwood-370 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,826,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,495,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	862,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,826,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,357,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,183,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,427,000
Real Estate and Accumulated Depreciation, Date of Construction	1994
Piedmont Triad, NC - The Knollwood-370 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - The Knollwood-370 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - The Knollwood-380 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,989,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	12,028,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,090,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,989,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,118,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	18,107,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,347,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Piedmont Triad, NC - The Knollwood-380 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - The Knollwood-380 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - US Airways [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,450,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,375,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,005,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,450,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,380,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,830,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,510,000
Real Estate and Accumulated Depreciation, Date of Construction	1970-1987
Piedmont Triad, NC - US Airways [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - US Airways [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Piedmont Triad, NC - Westpoint Business Park-Luwabahnson [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	347,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,389,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	97,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	347,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,486,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,833,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	612,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Piedmont Triad, NC - Westpoint Business Park-Luwabahnson [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Piedmont Triad, NC - Westpoint Business Park-Luwabahnson [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Pittsburgh, PA - PPG I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	123,613,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Date of Construction	1983-1985
Pittsburgh, PA - PPG I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Pittsburgh, PA - PPG I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Pittsburgh, PA - PPG II-Office [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	123,613,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Date of Construction	1983-1985
Pittsburgh, PA - PPG II-Office [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Pittsburgh, PA - PPG II-Office [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Pittsburgh, PA - PPG II-Retail [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	123,613,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Date of Construction	1983-1985
Pittsburgh, PA - PPG II-Retail [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Pittsburgh, PA - PPG II-Retail [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Pittsburgh, PA - PPG III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	123,613,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Date of Construction	1983-1985
Pittsburgh, PA - PPG III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Pittsburgh, PA - PPG III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Pittsburgh, PA - PPG IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	123,613,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Date of Construction	1983-1985
Pittsburgh, PA - PPG IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Pittsburgh, PA - PPG IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Pittsburgh, PA - PPG V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	123,613,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Date of Construction	1983-1985
Pittsburgh, PA - PPG V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Pittsburgh, PA - PPG V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Pittsburgh, PA - PPG VI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	123,613,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Date of Construction	1983-1985
Pittsburgh, PA - PPG VI [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Pittsburgh, PA - PPG VI [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 3600 Glenwood Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	10,994,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,247,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,241,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,241,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,711,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Raleigh, NC - 3600 Glenwood Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 3600 Glenwood Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 3737 Glenwood Avenue [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	318,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,637,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	318,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,637,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,955,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,227,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Raleigh, NC - 3737 Glenwood Avenue [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 3737 Glenwood Avenue [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 4101 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,348,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,346,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	220,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,141,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,568,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,205,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,773,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,718,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Raleigh, NC - 4101 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 4101 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 4201 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,204,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,858,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(2,586,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,204,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,272,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,476,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,688,000
Real Estate and Accumulated Depreciation, Date of Construction	1991
Raleigh, NC - 4201 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 4201 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 4301 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	900,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,237,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	534,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	900,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,771,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,671,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,606,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Raleigh, NC - 4301 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 4301 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 4401 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,249,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,387,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,005,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,249,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,392,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,641,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,618,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Raleigh, NC - 4401 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 4401 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 4501 Research Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	785,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,856,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,791,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	785,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,647,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,432,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,449,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Raleigh, NC - 4501 Research Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 4501 Research Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 4800 North Park [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,678,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	17,630,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,204,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,678,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	26,834,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	29,512,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	11,811,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Raleigh, NC - 4800 North Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 4800 North Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 4900 North Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	249,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	770,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,983,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	805,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	770,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,788,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,558,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,263,000
Real Estate and Accumulated Depreciation, Date of Construction	1984
Raleigh, NC - 4900 North Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 4900 North Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 5000 North Park [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,010,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,612,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(49,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,530,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	961,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,142,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,103,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,592,000
Real Estate and Accumulated Depreciation, Date of Construction	1980
Raleigh, NC - 5000 North Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 5000 North Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - 801 Corporate Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	828,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	272,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	10,223,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,100,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,223,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	11,323,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,063,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Raleigh, NC - 801 Corporate Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - 801 Corporate Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Blue Ridge I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	722,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,606,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,449,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	722,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,055,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,777,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,994,000
Real Estate and Accumulated Depreciation, Date of Construction	1982
Raleigh, NC - Blue Ridge I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Blue Ridge I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Blue Ridge II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	462,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,410,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	438,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	462,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,848,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,310,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,020,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Raleigh, NC - Blue Ridge II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Blue Ridge II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Cape Fear [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	131,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,630,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	772,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	131,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,402,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,533,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,149,000
Real Estate and Accumulated Depreciation, Date of Construction	1979
Raleigh, NC - Cape Fear [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Cape Fear [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Catawba [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	125,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,635,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,390,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	125,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,025,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,150,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,724,000
Real Estate and Accumulated Depreciation, Date of Construction	1980
Raleigh, NC - Catawba [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Catawba [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - CentreGreen One - Weston [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,529,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(378,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,585,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,151,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,585,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,736,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,346,000
Real Estate and Accumulated Depreciation, Date of Construction	2000
Raleigh, NC - CentreGreen One - Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - CentreGreen One - Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - CentreGreen Two - Weston [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,653,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(389,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	8,673,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,264,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,673,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,937,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,340,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Raleigh, NC - CentreGreen Two - Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - CentreGreen Two - Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - CentreGreen Three Land - Weston [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,876,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(384,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,492,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,492,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - CentreGreen Three Land - Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - CentreGreen Three Land - Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - CentreGreen Four [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,779,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(397,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,094,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,382,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,094,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,476,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,491,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Raleigh, NC - CentreGreen Four [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - CentreGreen Four [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - CentreGreen Five [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,280,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	69,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,756,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,349,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,756,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,105,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,826,000
Real Estate and Accumulated Depreciation, Date of Construction	2008
Raleigh, NC - CentreGreen Five [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - CentreGreen Five [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Cottonwood [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	609,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,244,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	434,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	609,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,678,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,287,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,619,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Raleigh, NC - Cottonwood [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Cottonwood [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Dogwood [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	766,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,769,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	524,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	766,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,293,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,059,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,546,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Raleigh, NC - Dogwood [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Dogwood [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - EPA [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,597,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,661,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,597,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,661,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,258,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	827,000
Real Estate and Accumulated Depreciation, Date of Construction	2003
Raleigh, NC - EPA [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - EPA [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - GlenLake Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	13,003,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(6,096,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	114,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	6,907,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	114,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,021,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	30,000
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - GlenLake Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - GlenLake Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - GlenLake Bldg I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	924,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	1,324,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	21,823,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,248,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,823,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	24,071,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,051,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Raleigh, NC - GlenLake Bldg I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - GlenLake Bldg I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - GlenLake Four [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,659,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	493,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	22,318,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,152,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,318,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	24,470,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,338,000
Real Estate and Accumulated Depreciation, Date of Construction	2006
Raleigh, NC - GlenLake Four [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - GlenLake Four [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - GlenLake Six [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	941,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	16,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	22,172,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	957,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,172,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,129,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,615,000
Real Estate and Accumulated Depreciation, Date of Construction	2008
Raleigh, NC - GlenLake Six [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - GlenLake Six [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Healthsource [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,304,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	540,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13,259,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,844,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	13,259,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,103,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,261,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Raleigh, NC - Healthsource [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Healthsource [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Highwoods Centre-Weston [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	531,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(267,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,542,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	264,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,542,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,806,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,618,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Raleigh, NC - Highwoods Centre-Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Highwoods Centre-Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Highwoods Office Center North Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	357,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	49,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	357,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	49,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	406,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	30,000
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - Highwoods Office Center North Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Highwoods Office Center North Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Highwoods Tower One [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	203,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	16,744,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,548,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	203,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	20,292,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	20,495,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	10,094,000
Real Estate and Accumulated Depreciation, Date of Construction	1991
Raleigh, NC - Highwoods Tower One [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Highwoods Tower One [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Highwoods Tower Two [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	365,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	503,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	21,337,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	868,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	21,337,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	22,205,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,363,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Raleigh, NC - Highwoods Tower Two [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Highwoods Tower Two [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Inveresk Land Parcel 2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	657,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	197,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	854,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	854,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - Inveresk Land Parcel 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Inveresk Land Parcel 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Inveresk Land Parcel 3 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	548,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	306,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	854,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	854,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - Inveresk Land Parcel 3 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Inveresk Land Parcel 3 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Lake Boone Medical Center [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,311,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	302,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,450,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,613,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,063,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	257,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Raleigh, NC - Lake Boone Medical Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Lake Boone Medical Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Maplewood [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	149,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	107,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,108,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	256,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,108,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,364,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	858,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Raleigh, NC - Maplewood [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Maplewood [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Overlook [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	398,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	293,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,104,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	691,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,104,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,795,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,812,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Raleigh, NC - Overlook [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Overlook [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Pamlico [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	289,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	14,834,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	289,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	14,834,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,123,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,254,000
Real Estate and Accumulated Depreciation, Date of Construction	1980
Raleigh, NC - Pamlico [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Pamlico [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - ParkWest One - Weston [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	242,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,376,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	242,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,376,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,618,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	900,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Raleigh, NC - ParkWest One - Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - ParkWest One - Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - ParkWest Two - Weston [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	356,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,104,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	356,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,104,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,460,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,392,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Raleigh, NC - ParkWest Two - Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - ParkWest Two - Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - ParkWest Three - Land - Weston [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	306,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	306,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	306,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - ParkWest Three - Land - Weston [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - ParkWest Three - Land - Weston [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Progress Center Renovation [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	362,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	362,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	362,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	187,000
Real Estate and Accumulated Depreciation, Date of Construction	2003
Raleigh, NC - Progress Center Renovation [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Progress Center Renovation [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Raleigh Corp Center Lot D [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,211,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	8,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,219,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,219,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - Raleigh Corp Center Lot D [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Raleigh Corp Center Lot D [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - RBC Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	46,181,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,206,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	71,345,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,206,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	71,345,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	72,551,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,332,000
Real Estate and Accumulated Depreciation, Date of Construction	2008
Raleigh, NC - RBC Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - RBC Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Rexwoods Center I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	878,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	3,730,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,210,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	878,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,940,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,818,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,606,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Raleigh, NC - Rexwoods Center I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Rexwoods Center I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Rexwoods Center II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	362,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,818,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	184,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	362,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,002,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,364,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	864,000
Real Estate and Accumulated Depreciation, Date of Construction	1993
Raleigh, NC - Rexwoods Center II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Rexwoods Center II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Rexwoods Center III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	919,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,816,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	810,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	919,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,626,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,545,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,792,000
Real Estate and Accumulated Depreciation, Date of Construction	1992
Raleigh, NC - Rexwoods Center III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Rexwoods Center III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Rexwoods Center IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	586,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,394,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	586,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,394,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,980,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,431,000
Real Estate and Accumulated Depreciation, Date of Construction	1995
Raleigh, NC - Rexwoods Center IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Rexwoods Center IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Rexwoods Center V [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,301,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	184,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,442,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,485,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,442,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,927,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,889,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Raleigh, NC - Rexwoods Center V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Rexwoods Center V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Riverbirch [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	469,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,038,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	21,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,996,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	490,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,034,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,524,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	220,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Raleigh, NC - Riverbirch [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Riverbirch [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Situs I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	692,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,646,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	178,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,215,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	870,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,431,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,301,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,230,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Raleigh, NC - Situs I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Situs I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Situs II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	718,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,254,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	181,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,315,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	899,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,939,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,838,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,645,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Raleigh, NC - Situs II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Situs II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Situs III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	440,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,078,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	119,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,008,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	559,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,070,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,629,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	913,000
Real Estate and Accumulated Depreciation, Date of Construction	2000
Raleigh, NC - Situs III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Situs III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Six Forks Center I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	666,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,665,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,145,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	666,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,810,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,476,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,622,000
Real Estate and Accumulated Depreciation, Date of Construction	1982
Raleigh, NC - Six Forks Center I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Six Forks Center I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Six Forks Center II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,086,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,533,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,517,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,086,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,050,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,136,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,566,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Raleigh, NC - Six Forks Center II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Six Forks Center II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Six Forks Center III [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	862,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,411,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,286,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	862,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,697,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,559,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,038,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Raleigh, NC - Six Forks Center III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Six Forks Center III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Smoketree Tower [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,353,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,743,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,559,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,353,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,302,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	17,655,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,579,000
Real Estate and Accumulated Depreciation, Date of Construction	1984
Raleigh, NC - Smoketree Tower [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Smoketree Tower [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Sycamore [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	255,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	217,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,152,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	472,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,152,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,624,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,787,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Raleigh, NC - Sycamore [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Sycamore [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Weston Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	22,771,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(8,938,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	13,833,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,833,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - Weston Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Weston Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Willow Oak [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	458,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	268,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,154,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	726,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,154,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,880,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,061,000
Real Estate and Accumulated Depreciation, Date of Construction	1995
Raleigh, NC - Willow Oak [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Raleigh, NC - Willow Oak [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Raleigh, NC - Other Property [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	48,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,496,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	716,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,310,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	764,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,806,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,570,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,965,000
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Raleigh, NC - Other Property [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Raleigh, NC - Other Property [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - 4900 Cox Road [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,324,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,311,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,006,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,324,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,317,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,641,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,204,000
Real Estate and Accumulated Depreciation, Date of Construction	1991
Richmond, VA - 4900 Cox Road [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - 4900 Cox Road [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Colonnade Building [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,364,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,105,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	758,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,364,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,863,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,227,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,730,000
Real Estate and Accumulated Depreciation, Date of Construction	2003
Richmond, VA - Colonnade Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Colonnade Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Dominion Place - Pitts Parcel [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,101,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(480,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	621,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	621,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Richmond, VA - Dominion Place - Pitts Parcel [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Dominion Place - Pitts Parcel [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Essex Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	10,438,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,581,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	13,299,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,746,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,581,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,553,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,134,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,387,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Richmond, VA - Essex Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Essex Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Grove Park I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	713,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	319,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,178,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,032,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,178,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,210,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,803,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Richmond, VA - Grove Park I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Grove Park I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Hamilton Beach [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,086,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,345,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,969,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,086,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,314,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,400,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,735,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Richmond, VA - Hamilton Beach [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Hamilton Beach [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Highwoods Commons [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	521,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	446,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,141,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	967,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,141,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,108,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,023,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Richmond, VA - Highwoods Commons [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Highwoods Commons [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Highwoods One [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,688,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	10,899,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,688,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,899,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,587,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,849,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Richmond, VA - Highwoods One [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Highwoods One [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Highwoods Two [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	786,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	213,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,026,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	999,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,026,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,025,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,173,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Richmond, VA - Highwoods Two [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Highwoods Two [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Highwoods Five [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	783,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,561,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	783,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,561,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,344,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,996,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Richmond, VA - Highwoods Five [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Highwoods Five [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Highwoods Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	909,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	176,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,665,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,085,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,665,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,750,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,580,000
Real Estate and Accumulated Depreciation, Date of Construction	2000
Richmond, VA - Highwoods Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Highwoods Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Innsbrooke Centre [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	4,948,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,300,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,958,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(144,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(414,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,156,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,544,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,700,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,233,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Richmond, VA - Innsbrooke Centre [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Innsbrooke Centre [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Innslake Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	845,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	195,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,401,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,040,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,401,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,441,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,379,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Richmond, VA - Innslake Center [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Innslake Center [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Liberty Mutual [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,205,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,825,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	954,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,205,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,779,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,984,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,175,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Richmond, VA - Liberty Mutual [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Liberty Mutual [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Markel American [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	8,226,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,300,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	13,259,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	72,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(4,466,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,372,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,793,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,165,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,808,000
Real Estate and Accumulated Depreciation, Date of Construction	1998
Richmond, VA - Markel American [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Markel American [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Markel Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	10,438,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,700,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	17,081,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(386,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(5,389,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,314,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,692,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,006,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,309,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Richmond, VA - Markel Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Markel Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - North Park [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,163,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,659,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(14,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,826,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,149,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,485,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,634,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,450,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Richmond, VA - North Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - North Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - North Shore Commons A [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	951,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,256,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	951,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,256,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,207,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,809,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Richmond, VA - North Shore Commons A [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - North Shore Commons A [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - North Shore Commons B - Land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,067,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(103,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,105,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,964,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,105,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,069,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,760,000
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Richmond, VA - North Shore Commons B - Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - North Shore Commons B - Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - North Shore Commons C - Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,497,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,497,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,497,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Richmond, VA - North Shore Commons C - Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - North Shore Commons C - Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - North Shore Commons D - Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,261,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,261,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,261,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Richmond, VA - North Shore Commons D - Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - North Shore Commons D - Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Nuckols Corner Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,259,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,259,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,259,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Richmond, VA - Nuckols Corner Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Nuckols Corner Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - One Shockoe Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	356,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	15,155,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	356,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	15,155,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,511,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,278,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Richmond, VA - One Shockoe Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - One Shockoe Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Pavilion Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	181,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	46,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	20,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(46,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	201,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	201,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Richmond, VA - Pavilion Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Pavilion Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Rhodia Building [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,600,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	8,864,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,957,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,600,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	10,821,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,421,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	925,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Richmond, VA - Rhodia Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Rhodia Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Sadler & Cox Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,535,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,535,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,535,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Richmond, VA - Sadler & Cox Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Sadler & Cox Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Saxon Capital Building [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,918,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	337,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	13,550,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,255,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	13,550,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,805,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,531,000
Real Estate and Accumulated Depreciation, Date of Construction	2005
Richmond, VA - Saxon Capital Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Saxon Capital Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Stony Point F Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,841,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,841,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,841,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Richmond, VA - Stony Point F Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Stony Point F Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Richmond, VA - Stony Point I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,384,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,630,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	59,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,339,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,443,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	13,969,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,412,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,885,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Richmond, VA - Stony Point I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Stony Point I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Stony Point II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,240,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,654,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,240,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,654,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,894,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,495,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Richmond, VA - Stony Point II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Stony Point II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Stony Point III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	995,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	9,134,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	995,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,134,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,129,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,422,000
Real Estate and Accumulated Depreciation, Date of Construction	2002
Richmond, VA - Stony Point III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Stony Point III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Stony Point IV [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	955,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	11,583,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	955,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	11,583,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,538,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,682,000
Real Estate and Accumulated Depreciation, Date of Construction	2006
Richmond, VA - Stony Point IV [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Stony Point IV [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Technology Park 1 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	541,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,166,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	363,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	541,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,529,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,070,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	973,000
Real Estate and Accumulated Depreciation, Date of Construction	1991
Richmond, VA - Technology Park 1 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Technology Park 1 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Technology Park 2 [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	264,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,058,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	143,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	264,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,201,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,465,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	475,000
Real Estate and Accumulated Depreciation, Date of Construction	1991
Richmond, VA - Technology Park 2 [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Technology Park 2 [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Vantage Place A [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	203,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	811,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	241,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	203,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,052,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,255,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	476,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Richmond, VA - Vantage Place A [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Vantage Place A [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Vantage Place B [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	233,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	931,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	236,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	233,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,167,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,400,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	467,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Richmond, VA - Vantage Place B [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Vantage Place B [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Vantage Place C [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	235,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	940,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	285,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	235,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,225,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,460,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	522,000
Real Estate and Accumulated Depreciation, Date of Construction	1987
Richmond, VA - Vantage Place C [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Vantage Place C [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Vantage Place D [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	218,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	873,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	270,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	218,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,143,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,361,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	459,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Richmond, VA - Vantage Place D [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Vantage Place D [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Vantage Pointe [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	120,259,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,089,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,500,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,210,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,089,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,710,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,799,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	2,349,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Richmond, VA - Vantage Pointe [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Vantage Pointe [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Virginia Mutual [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,301,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,036,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	670,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,301,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,706,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,007,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,890,000
Real Estate and Accumulated Depreciation, Date of Construction	1996
Richmond, VA - Virginia Mutual [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Virginia Mutual [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - Waterfront Plaza [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	585,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,347,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,054,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	585,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,401,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,986,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,390,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Richmond, VA - Waterfront Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - Waterfront Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - West Shore I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	332,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,431,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	267,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	332,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,698,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	2,030,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	690,000
Real Estate and Accumulated Depreciation, Date of Construction	1995
Richmond, VA - West Shore I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - West Shore I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - West Shore II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	489,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	2,181,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	467,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	489,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	2,648,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,137,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	985,000
Real Estate and Accumulated Depreciation, Date of Construction	1995
Richmond, VA - West Shore II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - West Shore II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Richmond, VA - West Shore III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	125,264,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	961,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	141,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	4,226,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,102,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	4,226,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,328,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,439,000
Real Estate and Accumulated Depreciation, Date of Construction	1997
Richmond, VA - West Shore III [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Richmond, VA - West Shore III [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
South Florida - The 1800 Eller Drive Building [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,851,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,154,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,005,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,005,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,003,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
South Florida - The 1800 Eller Drive Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
South Florida - The 1800 Eller Drive Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - 380 Park Place [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,502,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	240,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	7,061,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,742,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	7,061,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,803,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,856,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Tampa, FL - 380 Park Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - 380 Park Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - 4200 Cypress [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,673,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	16,470,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	309,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,673,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	16,779,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	19,452,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,732,000
Real Estate and Accumulated Depreciation, Date of Construction	1989
Tampa, FL - 4200 Cypress [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - 4200 Cypress [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Anchor Glass [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,281,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,318,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,617,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,281,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,935,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	14,216,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,855,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Tampa, FL - Anchor Glass [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Anchor Glass [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Avion Park Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	5,237,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,487,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	5,237,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	1,487,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,724,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	120,000
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Tampa, FL - Avion Park Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Tampa, FL - Avion Park Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Tampa, FL - Bayshore [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,276,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	11,817,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,057,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,276,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,874,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	15,150,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	4,728,000
Real Estate and Accumulated Depreciation, Date of Construction	1990
Tampa, FL - Bayshore [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Bayshore [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - FBI Field Office [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	4,054,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	406,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	27,273,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,460,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	27,273,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	31,733,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,429,000
Real Estate and Accumulated Depreciation, Date of Construction	2005
Tampa, FL - FBI Field Office [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - FBI Field Office [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Feathersound Corporate Center II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	802,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,463,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,774,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	802,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,237,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	10,039,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,184,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Tampa, FL - Feathersound Corporate Center II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Feathersound Corporate Center II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Harborview Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	21,049,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,537,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	29,944,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	969,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	(1,339,000)
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,506,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	28,605,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	33,111,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,848,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Tampa, FL - Harborview Plaza [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Harborview Plaza [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Highwoods Preserve I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	991,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	22,192,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	991,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,192,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	23,183,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,730,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Tampa, FL - Highwoods Preserve I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Highwoods Preserve I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Highwoods Preserve Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,485,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	485,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,970,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	1,970,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Tampa, FL - Highwoods Preserve Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Tampa, FL - Highwoods Preserve Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Tampa, FL - Highwoods Preserve V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	881,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	27,263,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	881,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	27,263,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	28,144,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,144,000
Real Estate and Accumulated Depreciation, Date of Construction	2001
Tampa, FL - Highwoods Preserve V [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Highwoods Preserve V [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - HIW Bay Center I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,565,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(64,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	37,660,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,501,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	37,660,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	41,161,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,002,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Tampa, FL - HIW Bay Center I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - HIW Bay Center I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - HIW Bay Center II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,482,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,482,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,482,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Tampa, FL - HIW Bay Center II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Tampa, FL - HIW Bay Center II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Tampa, FL - HIW Preserve VII [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	790,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	12,513,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	790,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,513,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	13,303,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,480,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Tampa, FL - HIW Preserve VII [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - HIW Preserve VII [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - HIW Preserve VII Garage [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,789,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	6,789,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,789,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	834,000
Real Estate and Accumulated Depreciation, Date of Construction	2007
Tampa, FL - HIW Preserve VII Garage [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - HIW Preserve VII Garage [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Horizon [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	6,257,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,492,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	8,749,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	8,749,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,465,000
Real Estate and Accumulated Depreciation, Date of Construction	1980
Tampa, FL - Horizon [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Horizon [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - LakePointe I [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,106,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	89,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	35,350,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,106,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	35,439,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	37,545,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	12,643,000
Real Estate and Accumulated Depreciation, Date of Construction	1986
Tampa, FL - LakePointe I [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - LakePointe I [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - LakePointe II [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,000,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	15,848,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	672,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,896,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,672,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,744,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	25,416,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,194,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Tampa, FL - LakePointe II [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - LakePointe II [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Lakeside [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	7,369,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,775,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	9,144,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	9,144,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	3,619,000
Real Estate and Accumulated Depreciation, Date of Construction	1978
Tampa, FL - Lakeside [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Lakeside [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Lakeside/Parkside Garage [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,224,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,224,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,224,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	578,000
Real Estate and Accumulated Depreciation, Date of Construction	2004
Tampa, FL - Lakeside/Parkside Garage [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Lakeside/Parkside Garage [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - One Harbour Place [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,016,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	25,252,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	6,174,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,016,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	31,426,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	33,442,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,756,000
Real Estate and Accumulated Depreciation, Date of Construction	1985
Tampa, FL - One Harbour Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - One Harbour Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Parkside [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	9,407,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	3,488,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	12,895,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	12,895,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	5,319,000
Real Estate and Accumulated Depreciation, Date of Construction	1979
Tampa, FL - Parkside [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Parkside [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Pavilion [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	16,394,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,165,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	18,559,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	18,559,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	6,720,000
Real Estate and Accumulated Depreciation, Date of Construction	1982
Tampa, FL - Pavilion [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Pavilion [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Pavilion Parking Garage [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	0
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,600,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,600,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	5,600,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,708,000
Real Estate and Accumulated Depreciation, Date of Construction	1999
Tampa, FL - Pavilion Parking Garage [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Pavilion Parking Garage [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Spectrum [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,454,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	14,502,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	5,857,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,454,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	20,359,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	21,813,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	7,376,000
Real Estate and Accumulated Depreciation, Date of Construction	1984
Tampa, FL - Spectrum [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Spectrum [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Tower Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances	112,075,000
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	3,218,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	19,898,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	2,667,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	3,218,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	22,565,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	25,783,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	9,150,000
Real Estate and Accumulated Depreciation, Date of Construction	1988
Tampa, FL - Tower Place [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Tower Place [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Westshore Square [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	1,126,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	5,186,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	616,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	1,126,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,802,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	6,928,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	1,973,000
Real Estate and Accumulated Depreciation, Date of Construction	1976
Tampa, FL - Westshore Square [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Westshore Square [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Tampa, FL - Independence Park Land [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	4,943,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	0
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	4,943,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	0
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	4,943,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	0
Real Estate and Accumulated Depreciation, Date of Construction	N/A
Tampa, FL - Independence Park Land [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Tampa, FL - Independence Park Land [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation
Tampa, FL - Independence Park [Member]
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	2,531,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	4,526,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	0
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	726,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	2,531,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	5,252,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	7,783,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	139,000
Real Estate and Accumulated Depreciation, Date of Construction	1983
Tampa, FL - Independence Park [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	5
Tampa, FL - Independence Park [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Life Used For Depreciation	40
Total Real Estate and Accumulated Depreciation [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real Estate and Accumulated Depreciation, Encumbrances
Real Estate and Accumulated Depreciation, Initial Cost [Abstract]
Real Estate and Accumulated Depreciation, Initial Cost of Land	503,691,000
Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements	1,573,930,000
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition [Abstract]
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Land	(28,714,000)
Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Buildings and Improvements	1,570,238,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period [Abstract]
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Land	474,977,000
Real Estate and Accumulated Depreciation, Gross Value at Close of Period, Buildings and Improvements	3,144,168,000
Real Estate and Accumulated Depreciation,Gross Value at Close of Period, Total Assets	3,619,145,000
Real Estate and Accumulated Depreciation, Accumulated Depreciation	$ 901,300,000

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Accumulated depreciation of investments in land and buildings held for sale.

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Amount of acquisitions (other than foreclosures), developments and improvements made to real estate investments during the period.

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Carrying amount as of the balance sheet date of improvements made to land after acquisition.

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Reclass related to carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

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The current amount of expenditures for a real estate project that has not yet been completed.

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The amount as of the balance sheet date of accumulated depreciation pertaining to real estate properties.

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Amount of depreciation expense for the period.

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The amount that was removed from accumulated depreciation pertaining to real estate that was sold in the period.

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The amount of accumulated depreciation for the property as of the balance sheet date.

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