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Schedule III - Real Estate And Accumulated Depreciation (Details) | 12 Months Ended |  |  |
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Dec. 31, 2016 USD ($) property | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Gross Leasable Area | property |  | 9,127,793 |  |  |  |
Initial cost to the Company, Land |  | $ 306,824,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 948,982,000 |  |  |  |
Subsequent cost capitalized | [1] | 240,623,000 |  |  |  |
Gross carrying amount of Land |  | 301,299,000 |  |  |  |
Gross carrying amount of building and improvements |  | 1,195,130,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 1,496,429,000 | [2] | $ 1,550,027,000 | $ 1,476,173,000 | $ 1,450,951,000
Accumulated Depreciation |  | 313,070,000 |  | $ 300,832,000 | $ 267,211,000 | $ 251,605,000
Amount of Encumbrance |  | $ 138,243,000 |  |  |  |
Academy Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2001 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 137,415 |  |  |  |
Initial cost to the Company, Land |  | $ 2,406,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 9,623,000 |  |  |  |
Subsequent cost capitalized | [1] | 4,565,000 |  |  |  |
Gross carrying amount of Land |  | 2,406,000 |  |  |  |
Gross carrying amount of building and improvements |  | 14,188,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 16,594,000 |  |  |  |
Accumulated Depreciation |  | $ 4,907,000 |  |  |  |
Academy Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1965 |  |  |  |
Academy Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2013 |  |  |  |
Big Y Shopping Center [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2013 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2007 |  |  |  |
Gross Leasable Area | property |  | 101,105 |  |  |  |
Initial cost to the Company, Land |  | $ 11,272,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 23,395,000 |  |  |  |
Subsequent cost capitalized | [1] | 11,000 |  |  |  |
Gross carrying amount of Land |  | 10,268,000 |  |  |  |
Gross carrying amount of building and improvements |  | 24,410,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 34,678,000 |  |  |  |
Accumulated Depreciation |  | $ 2,601,000 |  |  |  |
Camp Hill [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2002 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 463,967 |  |  |  |
Initial cost to the Company, Land |  | $ 4,460,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 17,857,000 |  |  |  |
Subsequent cost capitalized | [1] | 44,498,000 |  |  |  |
Gross carrying amount of Land |  | 4,424,000 |  |  |  |
Gross carrying amount of building and improvements |  | 62,391,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 66,815,000 |  |  |  |
Accumulated Depreciation |  | $ 19,663,000 |  |  |  |
Camp Hill [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1958 |  |  |  |
Camp Hill [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2005 |  |  |  |
Carll's Corner [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 129,582 |  |  |  |
Initial cost to the Company, Land |  | $ 3,034,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 15,293,000 |  |  |  |
Subsequent cost capitalized | [1] | (433,000) |  |  |  |
Gross carrying amount of Land |  | 2,898,000 |  |  |  |
Gross carrying amount of building and improvements |  | 14,996,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 17,894,000 |  |  |  |
Accumulated Depreciation |  | $ 4,614,000 |  |  |  |
Carll's Corner [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1960 |  |  |  |
Carll's Corner [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1999 |  |  |  |
Carmans Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 193,736 |  |  |  |
Initial cost to the Company, Land |  | $ 8,539,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 35,804,000 |  |  |  |
Subsequent cost capitalized | [1] | 517,000 |  |  |  |
Gross carrying amount of Land |  | 8,421,000 |  |  |  |
Gross carrying amount of building and improvements |  | 36,439,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 44,860,000 |  |  |  |
Accumulated Depreciation |  | $ 10,394,000 |  |  |  |
Carmans Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1954 |  |  |  |
Carmans Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2007 |  |  |  |
Coliseum Marketplace [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 106,648 |  |  |  |
Initial cost to the Company, Land |  | $ 2,924,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 14,416,000 |  |  |  |
Subsequent cost capitalized | [1] | 5,426,000 |  |  |  |
Gross carrying amount of Land |  | 3,586,000 |  |  |  |
Gross carrying amount of building and improvements |  | 19,180,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 22,766,000 |  |  |  |
Accumulated Depreciation |  | $ 6,361,000 |  |  |  |
Coliseum Marketplace [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1987 |  |  |  |
Coliseum Marketplace [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2012 |  |  |  |
Colonial Commons [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2011 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 461,914 |  |  |  |
Initial cost to the Company, Land |  | $ 9,367,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 37,496,000 |  |  |  |
Subsequent cost capitalized | [1] | 5,222,000 |  |  |  |
Gross carrying amount of Land |  | 9,367,000 |  |  |  |
Gross carrying amount of building and improvements |  | 42,718,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 52,085,000 |  |  |  |
Accumulated Depreciation |  | 10,079,000 |  |  |  |
Amount of Encumbrance |  | $ 25,070,000 |  |  |  |
Colonial Commons [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2011 |  |  |  |
Colonial Commons [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2013 |  |  |  |
Crossroads II [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2008 |  |  |  |
Percent Owned |  | 60.00% |  |  |  |
Year built/Year last renovated |  | 2009 |  |  |  |
Gross Leasable Area | property |  | 133,717 |  |  |  |
Initial cost to the Company, Land |  | $ 15,383,000 |  |  |  |
Subsequent cost capitalized | [1] | 28,968,000 |  |  |  |
Gross carrying amount of Land |  | 17,671,000 |  |  |  |
Gross carrying amount of building and improvements |  | 26,680,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 44,351,000 |  |  |  |
Accumulated Depreciation |  | $ 5,140,000 |  |  |  |
East River Park [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2015 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 150,107 |  |  |  |
Initial cost to the Company, Land |  | $ 9,143,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 30,893,000 |  |  |  |
Subsequent cost capitalized | [1] | 378,000 |  |  |  |
Gross carrying amount of Land |  | 9,398,000 |  |  |  |
Gross carrying amount of building and improvements |  | 31,016,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 40,414,000 |  |  |  |
Accumulated Depreciation |  | 1,662,000 |  |  |  |
Amount of Encumbrance |  | $ 19,848,000 |  |  |  |
East River Park [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1946 |  |  |  |
East River Park [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1996 |  |  |  |
Elmhurst Square [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2006 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 66,254 |  |  |  |
Initial cost to the Company, Land |  | $ 1,371,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 5,994,000 |  |  |  |
Subsequent cost capitalized | [1] | 423,000 |  |  |  |
Gross carrying amount of Land |  | 1,371,000 |  |  |  |
Gross carrying amount of building and improvements |  | 6,417,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 7,788,000 |  |  |  |
Accumulated Depreciation |  | $ 1,704,000 |  |  |  |
Elmhurst Square [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1961 |  |  |  |
Elmhurst Square [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1983 |  |  |  |
Fairview Commons [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 52,964 |  |  |  |
Initial cost to the Company, Land |  | $ 858,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 3,568,000 |  |  |  |
Subsequent cost capitalized | [1] | 346,000 |  |  |  |
Gross carrying amount of Land |  | 858,000 |  |  |  |
Gross carrying amount of building and improvements |  | 3,914,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 4,772,000 |  |  |  |
Accumulated Depreciation |  | $ 860,000 |  |  |  |
Fairview Commons [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1976 |  |  |  |
Fairview Commons [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2003 |  |  |  |
Fieldstone Marketplace [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 151,995 |  |  |  |
Initial cost to the Company, Land |  | $ 5,229,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 21,440,000 |  |  |  |
Subsequent cost capitalized | [1] | 1,969,000 |  |  |  |
Gross carrying amount of Land |  | 5,167,000 |  |  |  |
Gross carrying amount of building and improvements |  | 23,471,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 28,638,000 |  |  |  |
Accumulated Depreciation |  | $ 7,951,000 |  |  |  |
Fieldstone Marketplace [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Year built/Year last renovated |  | 1988 |  |  |  |
Fieldstone Marketplace [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2012 |  |  |  |
Year built/Year last renovated |  | 2003 |  |  |  |
Fort Washington Center [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2002 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2003 |  |  |  |
Gross Leasable Area | property |  | 41,000 |  |  |  |
Initial cost to the Company, Land |  | $ 2,462,000 |  |  |  |
Subsequent cost capitalized | [1] | 5,176,000 |  |  |  |
Gross carrying amount of Land |  | 2,462,000 |  |  |  |
Gross carrying amount of building and improvements |  | 5,176,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 7,638,000 |  |  |  |
Accumulated Depreciation |  | $ 2,055,000 |  |  |  |
Franklin Village Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 303,144 |  |  |  |
Initial cost to the Company, Land |  | $ 14,270,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 61,915,000 |  |  |  |
Subsequent cost capitalized | [1] | 1,486,000 |  |  |  |
Gross carrying amount of Land |  | 14,681,000 |  |  |  |
Gross carrying amount of building and improvements |  | 62,990,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 77,671,000 |  |  |  |
Accumulated Depreciation |  | 10,313,000 |  |  |  |
Amount of Encumbrance |  | $ 49,097,000 |  |  |  |
Franklin Village Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2004 |  |  |  |
Year built/Year last renovated |  | 1987 |  |  |  |
Franklin Village Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2012 |  |  |  |
Year built/Year last renovated |  | 2005 |  |  |  |
Fredericksburg Way [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1997 |  |  |  |
Gross Leasable Area | property |  | 63,000 |  |  |  |
Initial cost to the Company, Land |  | $ 3,213,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 12,758,000 |  |  |  |
Gross carrying amount of Land |  | 3,213,000 |  |  |  |
Gross carrying amount of building and improvements |  | 12,758,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 15,971,000 |  |  |  |
Accumulated Depreciation |  | $ 4,131,000 |  |  |  |
General Booth Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1985 |  |  |  |
Gross Leasable Area | property |  | 71,639 |  |  |  |
Initial cost to the Company, Land |  | $ 1,935,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 9,493,000 |  |  |  |
Subsequent cost capitalized | [1] | (947,000) |  |  |  |
Gross carrying amount of Land |  | 1,935,000 |  |  |  |
Gross carrying amount of building and improvements |  | 8,546,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 10,481,000 |  |  |  |
Accumulated Depreciation |  | $ 2,465,000 |  |  |  |
Glen Allen Shopping Center [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2000 |  |  |  |
Gross Leasable Area | property |  | 63,328 |  |  |  |
Initial cost to the Company, Land |  | $ 6,769,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 683,000 |  |  |  |
Subsequent cost capitalized | [1] | (212,000) |  |  |  |
Gross carrying amount of Land |  | 5,367,000 |  |  |  |
Gross carrying amount of building and improvements |  | 1,873,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 7,240,000 |  |  |  |
Accumulated Depreciation |  | $ 524,000 |  |  |  |
Glenwood Village [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2016 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2015 |  |  |  |
Gross Leasable Area | property |  | 63,844 |  |  |  |
Initial cost to the Company, Land |  | $ 625,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 17,674,000 |  |  |  |
Subsequent cost capitalized | [1] | 66,000 |  |  |  |
Gross carrying amount of Land |  | 625,000 |  |  |  |
Gross carrying amount of building and improvements |  | 17,740,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 18,365,000 |  |  |  |
Accumulated Depreciation |  | $ 370,000 |  |  |  |
Gold Star Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2006 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1988 |  |  |  |
Gross Leasable Area | property |  | 71,720 |  |  |  |
Initial cost to the Company, Land |  | $ 1,644,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 6,519,000 |  |  |  |
Subsequent cost capitalized | [1] | 598,000 |  |  |  |
Gross carrying amount of Land |  | 1,644,000 |  |  |  |
Gross carrying amount of building and improvements |  | 7,117,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 8,761,000 |  |  |  |
Accumulated Depreciation |  | $ 2,518,000 |  |  |  |
Golden Triangle [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 202,790 |  |  |  |
Initial cost to the Company, Land |  | $ 2,320,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 9,713,000 |  |  |  |
Subsequent cost capitalized | [1] | 9,517,000 |  |  |  |
Gross carrying amount of Land |  | 2,320,000 |  |  |  |
Gross carrying amount of building and improvements |  | 19,230,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 21,550,000 |  |  |  |
Accumulated Depreciation |  | $ 7,807,000 |  |  |  |
Golden Triangle [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1960 |  |  |  |
Golden Triangle [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2005 |  |  |  |
Groton Shopping Center [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1969 |  |  |  |
Gross Leasable Area | property |  | 121,825 |  |  |  |
Initial cost to the Company, Land |  | $ 3,070,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 12,320,000 |  |  |  |
Subsequent cost capitalized | [1] | 4,045,000 |  |  |  |
Gross carrying amount of Land |  | 3,113,000 |  |  |  |
Gross carrying amount of building and improvements |  | 16,322,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 19,435,000 |  |  |  |
Accumulated Depreciation |  | $ 3,922,000 |  |  |  |
Halifax Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1994 |  |  |  |
Gross Leasable Area | property |  | 51,510 |  |  |  |
Initial cost to the Company, Land |  | $ 1,412,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 5,799,000 |  |  |  |
Subsequent cost capitalized | [1] | 367,000 |  |  |  |
Gross carrying amount of Land |  | 1,347,000 |  |  |  |
Gross carrying amount of building and improvements |  | 6,231,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 7,578,000 |  |  |  |
Accumulated Depreciation |  | $ 2,308,000 |  |  |  |
Hamburg Square [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2004 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 99,580 |  |  |  |
Initial cost to the Company, Land |  | $ 1,153,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 4,678,000 |  |  |  |
Subsequent cost capitalized | [1] | 5,518,000 |  |  |  |
Gross carrying amount of Land |  | 1,153,000 |  |  |  |
Gross carrying amount of building and improvements |  | 10,196,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 11,349,000 |  |  |  |
Accumulated Depreciation |  | $ 3,038,000 |  |  |  |
Hamburg Square [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1993 |  |  |  |
Hamburg Square [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2010 |  |  |  |
Jordan Lane [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 177,504 |  |  |  |
Initial cost to the Company, Land |  | $ 4,291,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 21,176,000 |  |  |  |
Subsequent cost capitalized | [1] | 242,000 |  |  |  |
Gross carrying amount of Land |  | 4,291,000 |  |  |  |
Gross carrying amount of building and improvements |  | 21,418,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 25,709,000 |  |  |  |
Accumulated Depreciation |  | $ 6,043,000 |  |  |  |
Jordan Lane [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1969 |  |  |  |
Jordan Lane [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1991 |  |  |  |
Kempsville Crossing [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 79,512 |  |  |  |
Initial cost to the Company, Land |  | $ 2,207,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 11,000,000 |  |  |  |
Subsequent cost capitalized | [1] | (3,227,000) |  |  |  |
Gross carrying amount of Land |  | 2,207,000 |  |  |  |
Gross carrying amount of building and improvements |  | 7,773,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 9,980,000 |  |  |  |
Accumulated Depreciation |  | $ 2,470,000 |  |  |  |
Kempsville Crossing [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1985 |  |  |  |
Kempsville Crossing [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2013 |  |  |  |
Kings Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 168,243 |  |  |  |
Initial cost to the Company, Land |  | $ 2,413,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 12,604,000 |  |  |  |
Subsequent cost capitalized | [1] | (537,000) |  |  |  |
Gross carrying amount of Land |  | 2,408,000 |  |  |  |
Gross carrying amount of building and improvements |  | 12,072,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 14,480,000 |  |  |  |
Accumulated Depreciation |  | $ 2,885,000 |  |  |  |
Kings Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1970 |  |  |  |
Kings Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1994 |  |  |  |
Lawndale Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2015 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1998 |  |  |  |
Gross Leasable Area | property |  | 93,040 |  |  |  |
Initial cost to the Company, Land |  | $ 3,635,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 21,854,000 |  |  |  |
Subsequent cost capitalized | [1] | 436,000 |  |  |  |
Gross carrying amount of Land |  | 3,635,000 |  |  |  |
Gross carrying amount of building and improvements |  | 22,290,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 25,925,000 |  |  |  |
Accumulated Depreciation |  | $ 1,665,000 |  |  |  |
Maxatawny Marketplace [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2011 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2014 |  |  |  |
Gross Leasable Area | property |  | 59,939 |  |  |  |
Initial cost to the Company, Land |  | $ 1,612,000 |  |  |  |
Subsequent cost capitalized | [1] | 9,066,000 |  |  |  |
Gross carrying amount of Land |  | 1,454,000 |  |  |  |
Gross carrying amount of building and improvements |  | 9,224,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 10,678,000 |  |  |  |
Accumulated Depreciation |  | $ 879,000 |  |  |  |
Meadows Marketplace [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2005 |  |  |  |
Gross Leasable Area | property |  | 91,518 |  |  |  |
Initial cost to the Company, Land |  | $ 1,914,000 |  |  |  |
Subsequent cost capitalized | [1] | 11,425,000 |  |  |  |
Gross carrying amount of Land |  | 1,914,000 |  |  |  |
Gross carrying amount of building and improvements |  | 11,425,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 13,339,000 |  |  |  |
Accumulated Depreciation |  | $ 3,160,000 |  |  |  |
Meadows Marketplace [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2004 |  |  |  |
Meadows Marketplace [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2012 |  |  |  |
Mechanicsburg Giant [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2003 |  |  |  |
Gross Leasable Area | property |  | 51,500 |  |  |  |
Initial cost to the Company, Land |  | $ 2,709,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 12,159,000 |  |  |  |
Gross carrying amount of Land |  | 2,709,000 |  |  |  |
Gross carrying amount of building and improvements |  | 12,159,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 14,868,000 |  |  |  |
Accumulated Depreciation |  | $ 3,802,000 |  |  |  |
Metro Square [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2008 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1999 |  |  |  |
Gross Leasable Area | property |  | 71,896 |  |  |  |
Initial cost to the Company, Land |  | $ 3,121,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 12,341,000 |  |  |  |
Subsequent cost capitalized | [1] | (247,000) |  |  |  |
Gross carrying amount of Land |  | 5,250,000 |  |  |  |
Gross carrying amount of building and improvements |  | 9,965,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 15,215,000 |  |  |  |
Accumulated Depreciation |  | 2,445,000 |  |  |  |
Amount of Encumbrance |  | $ 7,344,000 |  |  |  |
Newport Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1996 |  |  |  |
Gross Leasable Area | property |  | 64,489 |  |  |  |
Initial cost to the Company, Land |  | $ 1,721,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 7,758,000 |  |  |  |
Subsequent cost capitalized | [1] | 401,000 |  |  |  |
Gross carrying amount of Land |  | 1,682,000 |  |  |  |
Gross carrying amount of building and improvements |  | 8,198,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 9,880,000 |  |  |  |
Accumulated Depreciation |  | $ 2,942,000 |  |  |  |
New London Mall [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2009 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 259,566 |  |  |  |
Initial cost to the Company, Land |  | $ 14,891,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 24,967,000 |  |  |  |
Subsequent cost capitalized | [1] | 1,532,000 |  |  |  |
Gross carrying amount of Land |  | 8,807,000 |  |  |  |
Gross carrying amount of building and improvements |  | 32,583,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 41,390,000 |  |  |  |
Accumulated Depreciation |  | $ 10,743,000 |  |  |  |
New London Mall [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1967 |  |  |  |
New London Mall [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1997 |  |  |  |
Northside Commons [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2008 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2009 |  |  |  |
Gross Leasable Area | property |  | 69,136 |  |  |  |
Initial cost to the Company, Land |  | $ 3,332,000 |  |  |  |
Subsequent cost capitalized | [1] | 10,010,000 |  |  |  |
Gross carrying amount of Land |  | 3,379,000 |  |  |  |
Gross carrying amount of building and improvements |  | 9,963,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 13,342,000 |  |  |  |
Accumulated Depreciation |  | $ 1,832,000 |  |  |  |
Norwood Shopping Center [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2006 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 97,756 |  |  |  |
Initial cost to the Company, Land |  | $ 1,874,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 8,453,000 |  |  |  |
Subsequent cost capitalized | [1] | 735,000 |  |  |  |
Gross carrying amount of Land |  | 1,874,000 |  |  |  |
Gross carrying amount of building and improvements |  | 9,188,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 11,062,000 |  |  |  |
Accumulated Depreciation |  | $ 2,366,000 |  |  |  |
Norwood Shopping Center [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1965 |  |  |  |
Norwood Shopping Center [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2013 |  |  |  |
Oak Ridge Shopping Center [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2006 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2000 |  |  |  |
Gross Leasable Area | property |  | 38,700 |  |  |  |
Initial cost to the Company, Land |  | $ 960,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 4,254,000 |  |  |  |
Subsequent cost capitalized | [1] | 46,000 |  |  |  |
Gross carrying amount of Land |  | 960,000 |  |  |  |
Gross carrying amount of building and improvements |  | 4,300,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 5,260,000 |  |  |  |
Accumulated Depreciation |  | $ 1,340,000 |  |  |  |
Oakland Commons [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 90,100 |  |  |  |
Initial cost to the Company, Land |  | $ 2,504,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 15,662,000 |  |  |  |
Subsequent cost capitalized | [1] | (344,000) |  |  |  |
Gross carrying amount of Land |  | 2,504,000 |  |  |  |
Gross carrying amount of building and improvements |  | 15,318,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 17,822,000 |  |  |  |
Accumulated Depreciation |  | $ 4,352,000 |  |  |  |
Oakland Commons [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1962 |  |  |  |
Oakland Commons [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2013 |  |  |  |
Oakland Mills [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 58,224 |  |  |  |
Initial cost to the Company, Land |  | $ 1,611,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 6,292,000 |  |  |  |
Subsequent cost capitalized | [1] | 41,000 |  |  |  |
Gross carrying amount of Land |  | 1,611,000 |  |  |  |
Gross carrying amount of building and improvements |  | 6,333,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 7,944,000 |  |  |  |
Accumulated Depreciation |  | $ 2,408,000 |  |  |  |
Oakland Mills [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1960 |  |  |  |
Oakland Mills [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2004 |  |  |  |
Palmyra Shopping Center [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 111,051 |  |  |  |
Initial cost to the Company, Land |  | $ 1,488,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 6,566,000 |  |  |  |
Subsequent cost capitalized | [1] | 1,700,000 |  |  |  |
Gross carrying amount of Land |  | 1,488,000 |  |  |  |
Gross carrying amount of building and improvements |  | 8,266,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 9,754,000 |  |  |  |
Accumulated Depreciation |  | $ 2,780,000 |  |  |  |
Palmyra Shopping Center [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1960 |  |  |  |
Palmyra Shopping Center [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2012 |  |  |  |
Pine Grove Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 86,089 |  |  |  |
Initial cost to the Company, Land |  | $ 2,010,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 6,489,000 |  |  |  |
Subsequent cost capitalized | [1] | 767,000 |  |  |  |
Gross carrying amount of Land |  | 2,010,000 |  |  |  |
Gross carrying amount of building and improvements |  | 7,256,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 9,266,000 |  |  |  |
Accumulated Depreciation |  | $ 2,362,000 |  |  |  |
Pine Grove Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2001 |  |  |  |
Pine Grove Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2002 |  |  |  |
Port Richmond Village [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2001 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1988 |  |  |  |
Gross Leasable Area | property |  | 154,908 |  |  |  |
Initial cost to the Company, Land |  | $ 2,942,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 11,769,000 |  |  |  |
Subsequent cost capitalized | [1] | 1,588,000 |  |  |  |
Gross carrying amount of Land |  | 2,843,000 |  |  |  |
Gross carrying amount of building and improvements |  | 13,456,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 16,299,000 |  |  |  |
Accumulated Depreciation |  | $ 5,342,000 |  |  |  |
Quartermaster Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2014 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2004 |  |  |  |
Gross Leasable Area | property |  | 456,602 |  |  |  |
Initial cost to the Company, Land |  | $ 37,031,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 54,210,000 |  |  |  |
Subsequent cost capitalized | [1] | 812,000 |  |  |  |
Gross carrying amount of Land |  | 37,031,000 |  |  |  |
Gross carrying amount of building and improvements |  | 55,022,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 92,053,000 |  |  |  |
Accumulated Depreciation |  | $ 5,142,000 |  |  |  |
River View Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 236,217 |  |  |  |
Initial cost to the Company, Land |  | $ 9,718,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 40,356,000 |  |  |  |
Subsequent cost capitalized | [1] | 5,309,000 |  |  |  |
Gross carrying amount of Land |  | 9,718,000 |  |  |  |
Gross carrying amount of building and improvements |  | 45,665,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 55,383,000 |  |  |  |
Accumulated Depreciation |  | $ 15,689,000 |  |  |  |
River View Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1991 |  |  |  |
River View Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1998 |  |  |  |
San Souci Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2009 |  |  |  |
Percent Owned |  | 40.00% |  |  |  |
Gross Leasable Area | property |  | 264,134 |  |  |  |
Initial cost to the Company, Land |  | $ 14,849,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 18,445,000 |  |  |  |
Subsequent cost capitalized | [1] | 2,425,000 |  |  |  |
Gross carrying amount of Land |  | 13,406,000 |  |  |  |
Gross carrying amount of building and improvements |  | 22,313,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 35,719,000 |  |  |  |
Accumulated Depreciation |  | $ 9,501,000 |  |  |  |
San Souci Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1985 |  |  |  |
San Souci Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1997 |  |  |  |
Shoppes at Arts District [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2016 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2011 |  |  |  |
Gross Leasable Area | property |  | 35,676 |  |  |  |
Initial cost to the Company, Land |  | $ 2,247,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 18,616,000 |  |  |  |
Gross carrying amount of Land |  | 2,247,000 |  |  |  |
Gross carrying amount of building and improvements |  | 18,616,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 20,863,000 |  |  |  |
Accumulated Depreciation |  | 503,000 |  |  |  |
Amount of Encumbrance |  | $ 9,044,000 |  |  |  |
South Philadelphia [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 283,415 |  |  |  |
Initial cost to the Company, Land |  | $ 8,222,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 36,314,000 |  |  |  |
Subsequent cost capitalized | [1] | 2,815,000 |  |  |  |
Gross carrying amount of Land |  | 8,222,000 |  |  |  |
Gross carrying amount of building and improvements |  | 39,129,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 47,351,000 |  |  |  |
Accumulated Depreciation |  | $ 15,534,000 |  |  |  |
South Philadelphia [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1950 |  |  |  |
South Philadelphia [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2003 |  |  |  |
Southington Center [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 155,842 |  |  |  |
Initial cost to the Company, Building and Improvements |  | $ 11,834,000 |  |  |  |
Subsequent cost capitalized | [1] | 233,000 |  |  |  |
Gross carrying amount of building and improvements |  | 12,067,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 12,067,000 |  |  |  |
Accumulated Depreciation |  | $ 4,039,000 |  |  |  |
Southington Center [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1972 |  |  |  |
Southington Center [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2000 |  |  |  |
Suffolk Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 1984 |  |  |  |
Gross Leasable Area | property |  | 67,216 |  |  |  |
Initial cost to the Company, Land |  | $ 1,402,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 7,236,000 |  |  |  |
Subsequent cost capitalized | [1] | (1,301,000) |  |  |  |
Gross carrying amount of Land |  | 1,402,000 |  |  |  |
Gross carrying amount of building and improvements |  | 5,935,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 7,337,000 |  |  |  |
Accumulated Depreciation |  | $ 1,701,000 |  |  |  |
Swede Square [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 100,816 |  |  |  |
Initial cost to the Company, Land |  | $ 2,268,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 6,232,000 |  |  |  |
Subsequent cost capitalized | [1] | 5,726,000 |  |  |  |
Gross carrying amount of Land |  | 2,272,000 |  |  |  |
Gross carrying amount of building and improvements |  | 11,954,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 14,226,000 |  |  |  |
Accumulated Depreciation |  | $ 4,930,000 |  |  |  |
Swede Square [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1980 |  |  |  |
Swede Square [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2012 |  |  |  |
The Brickyard [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2004 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 227,598 |  |  |  |
Initial cost to the Company, Land |  | $ 7,632,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 29,308,000 |  |  |  |
Subsequent cost capitalized | [1] | 3,903,000 |  |  |  |
Gross carrying amount of Land |  | 7,648,000 |  |  |  |
Gross carrying amount of building and improvements |  | 33,195,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 40,843,000 |  |  |  |
Accumulated Depreciation |  | $ 9,370,000 |  |  |  |
The Brickyard [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1990 |  |  |  |
The Brickyard [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2012 |  |  |  |
The Commons [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2004 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Year built/Year last renovated |  | 2003 |  |  |  |
Gross Leasable Area | property |  | 203,426 |  |  |  |
Initial cost to the Company, Land |  | $ 3,098,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 14,047,000 |  |  |  |
Subsequent cost capitalized | [1] | 3,093,000 |  |  |  |
Gross carrying amount of Land |  | 3,098,000 |  |  |  |
Gross carrying amount of building and improvements |  | 17,140,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 20,238,000 |  |  |  |
Accumulated Depreciation |  | $ 6,364,000 |  |  |  |
The Point [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2000 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 268,037 |  |  |  |
Initial cost to the Company, Land |  | $ 2,700,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 10,800,000 |  |  |  |
Subsequent cost capitalized | [1] | 14,787,000 |  |  |  |
Gross carrying amount of Land |  | 2,996,000 |  |  |  |
Gross carrying amount of building and improvements |  | 25,291,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 28,287,000 |  |  |  |
Accumulated Depreciation |  | 9,288,000 |  |  |  |
Amount of Encumbrance |  | $ 27,840,000 |  |  |  |
The Point [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1972 |  |  |  |
The Point [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2012 |  |  |  |
The Shops at Suffolk Downs [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 121,320 |  |  |  |
Initial cost to the Company, Land |  | $ 7,580,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 11,089,000 |  |  |  |
Subsequent cost capitalized | [1] | 9,569,000 |  |  |  |
Gross carrying amount of Land |  | 7,580,000 |  |  |  |
Gross carrying amount of building and improvements |  | 20,658,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 28,238,000 |  |  |  |
Accumulated Depreciation |  | $ 5,530,000 |  |  |  |
The Shops at Suffolk Downs [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2005 |  |  |  |
The Shops at Suffolk Downs [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2011 |  |  |  |
Timpany Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 183,775 |  |  |  |
Initial cost to the Company, Land |  | $ 3,412,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 19,240,000 |  |  |  |
Subsequent cost capitalized | [1] | 593,000 |  |  |  |
Gross carrying amount of Land |  | 3,368,000 |  |  |  |
Gross carrying amount of building and improvements |  | 19,877,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 23,245,000 |  |  |  |
Accumulated Depreciation |  | $ 4,615,000 |  |  |  |
Timpany Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1970 |  |  |  |
Timpany Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1989 |  |  |  |
Trexler Mall [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2005 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 337,297 |  |  |  |
Initial cost to the Company, Land |  | $ 6,932,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 32,815,000 |  |  |  |
Subsequent cost capitalized | [1] | 7,588,000 |  |  |  |
Gross carrying amount of Land |  | 6,932,000 |  |  |  |
Gross carrying amount of building and improvements |  | 40,403,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 47,335,000 |  |  |  |
Accumulated Depreciation |  | $ 12,052,000 |  |  |  |
Trexler Mall [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1973 |  |  |  |
Trexler Mall [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2013 |  |  |  |
Trexlertown Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2006 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 321,129 |  |  |  |
Initial cost to the Company, Land |  | $ 13,349,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 23,867,000 |  |  |  |
Subsequent cost capitalized | [1] | 26,578,000 |  |  |  |
Gross carrying amount of Land |  | 13,351,000 |  |  |  |
Gross carrying amount of building and improvements |  | 50,443,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 63,794,000 |  |  |  |
Accumulated Depreciation |  | $ 8,761,000 |  |  |  |
Trexlertown Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1990 |  |  |  |
Trexlertown Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2011 |  |  |  |
Valley Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2003 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 190,939 |  |  |  |
Initial cost to the Company, Land |  | $ 1,950,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 7,766,000 |  |  |  |
Subsequent cost capitalized | [1] | 1,354,000 |  |  |  |
Gross carrying amount of Land |  | 1,950,000 |  |  |  |
Gross carrying amount of building and improvements |  | 9,120,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 11,070,000 |  |  |  |
Accumulated Depreciation |  | $ 3,292,000 |  |  |  |
Valley Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1975 |  |  |  |
Valley Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1994 |  |  |  |
Washington Center Shoppes [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2001 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 157,394 |  |  |  |
Initial cost to the Company, Land |  | $ 2,061,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 7,314,000 |  |  |  |
Subsequent cost capitalized | [1] | 4,460,000 |  |  |  |
Gross carrying amount of Land |  | 2,000,000 |  |  |  |
Gross carrying amount of building and improvements |  | 11,835,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 13,835,000 |  |  |  |
Accumulated Depreciation |  | $ 4,821,000 |  |  |  |
Washington Center Shoppes [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1979 |  |  |  |
Washington Center Shoppes [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1995 |  |  |  |
Webster Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 98,984 |  |  |  |
Initial cost to the Company, Land |  | $ 3,551,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 18,412,000 |  |  |  |
Subsequent cost capitalized | [1] | 2,847,000 |  |  |  |
Gross carrying amount of Land |  | 4,082,000 |  |  |  |
Gross carrying amount of building and improvements |  | 20,728,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 24,810,000 |  |  |  |
Accumulated Depreciation |  | $ 4,727,000 |  |  |  |
Webster Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1960 |  |  |  |
Webster Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2004 |  |  |  |
West Bridgewater Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 133,039 |  |  |  |
Initial cost to the Company, Land |  | $ 2,823,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 14,901,000 |  |  |  |
Subsequent cost capitalized | [1] | (685,000) |  |  |  |
Gross carrying amount of Land |  | 2,596,000 |  |  |  |
Gross carrying amount of building and improvements |  | 14,443,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 17,039,000 |  |  |  |
Accumulated Depreciation |  | $ 4,127,000 |  |  |  |
West Bridgewater Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1970 |  |  |  |
West Bridgewater Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2007 |  |  |  |
Yorktowne Plaza [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year acquired |  | 2007 |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Gross Leasable Area | property |  | 158,982 |  |  |  |
Initial cost to the Company, Land |  | $ 5,940,000 |  |  |  |
Initial cost to the Company, Building and Improvements |  | 25,505,000 |  |  |  |
Subsequent cost capitalized | [1] | 463,000 |  |  |  |
Gross carrying amount of Land |  | 5,798,000 |  |  |  |
Gross carrying amount of building and improvements |  | 26,110,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | 31,908,000 |  |  |  |
Accumulated Depreciation |  | $ 7,881,000 |  |  |  |
Yorktowne Plaza [Member] | Minimum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 1970 |  |  |  |
Yorktowne Plaza [Member] | Maximum [Member] |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Year built/Year last renovated |  | 2000 |  |  |  |
Land Parcels [Member |  |  |  |  |  |
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] |  |  |  |  |  |
Percent Owned |  | 100.00% |  |  |  |
Initial cost to the Company, Land |  | $ 1,965,000 |  |  |  |
Subsequent cost capitalized | [1] | (1,084,000) |  |  |  |
Gross carrying amount of Land |  | 881,000 |  |  |  |
SEC Schedule III, Real Estate, Gross, Total |  | $ 881,000 |  |  |  |
[1] | Negative amounts represent write-offs of fully depreciated assets.
[2] | At December 31, 2016, the aggregate cost for federal income tax purposes was approximately $26.5 million greater than the Company's recorded values.

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- Definition Real estate and accumulated depreciation costs capitalized and depreciated assets written off. + References No definition available. + Details
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- Definition Real Estate And Accumulated Depreciation Year Acquired + References No definition available. + Details
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- Definition Real Estate And Accumulated Depreciation Year Built Last Renovated + References No definition available. + Details
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