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Significant Accounting Policies (Narratives) (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Property, Plant and Equipment [Line Items]        
Real Estate Accumulated Depreciation, Depreciation Expense $ 1,118,000 $ 1,011,000 $ 3,355,000 $ 2,990,000
Impairments (1,500,000) (358,000) (1,500,000)  
Amortization of above and below Market Leases 40,000 120,000 129,000 353,000
Amortization of Intangible Assets $ 107,000 $ 150,000 $ 356,000 $ 456,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount     1,381,556 1,360,096
Building and Building Improvements [Member] | Minimum [Member]
       
Property, Plant and Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     30 years  
Building and Building Improvements [Member] | Maximum [Member]
       
Property, Plant and Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     55 years  
Assets Leased to Others [Member] | Minimum [Member]
       
Property, Plant and Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     1 year  
Assets Leased to Others [Member] | Maximum [Member]
       
Property, Plant and Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     10 years  
Furniture and Fixtures [Member] | Minimum [Member]
       
Property, Plant and Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     4 years  
Furniture and Fixtures [Member] | Maximum [Member]
       
Property, Plant and Equipment [Line Items]        
Property, Plant and Equipment, Useful Life     5 years