XML 45 R30.htm IDEA: XBRL DOCUMENT v3.8.0.1
Significant Accounting Policies (Details)
 12 Months Ended
Dec. 31, 2017
USD ($)
Property
shares
Dec. 31, 2016
USD ($)
shares
Real Estate Asset Acquisitions [Abstract]    
Amortization of above and below market rents $ 207,000 $ 286,000
Remaining term of in-place leases (in years) 10 years  
Amortization expense related to in-place leases, unamortized lease origination costs and tenant relationships $ 929,000 1,224,000
Impairment [Abstract]    
Asset impairment charge 0 948,053
Sales of Real Estate Assets [Abstract]    
Asset impairment charge 0 948,053
Intangible Assets [Abstract]    
Impairment of definite lived assets 590,000 754,000
Impairment of indefinite lived assets 0 0
Impairment of goodwill 0 0
Depreciation and Amortization of Buildings and Improvements [Abstract]    
Depreciation expense 9,700,000 10,300,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]    
Deposits in financial institutions that exceeded the federally insurable limits 1,100,000  
Cash balances may exceed federally insured limit 250,000  
Loss on federal deposit insurance corporation 0  
Tenant Receivables [Abstract]    
Allowance for uncollectible accounts 26,000 26,000
Deferred Leasing Costs [Abstract]    
Net deferred leasing costs 1,892,000 1,920,000
Amortization of deferred leasing costs 550,000 494,000
Deferred Financing Costs [Abstract]    
Unamortized deferred financing costs 1,683,000 1,942,000
Amortization of financing costs $ 1,090,853 1,447,021
Income Tax Uncertainties [Abstract]    
Income Tax Examination Description We have elected to be taxed as a REIT under Sections 856 through 860 of the Code, for federal income tax purposes. To maintain our qualification as a REIT, we are required to distribute at least 90% of our REIT taxable income to our stockholders and meet the various other requirements imposed by the Code relating to such matters as operating results, asset holdings, distribution levels and diversity of stock ownership  
Percentage of distributed taxable income to qualify as REIT 90.00%  
Revenue Recognition [Abstract]    
Deferred rent receivable $ 0 $ 0
Loss Per Common Share [Abstract]    
Anti-dilutive shares excluded from computation of diluted earnings per share | shares 656,758 643,510
Restricted cash $ 4,500,000 $ 4,300,000
Number of real estate properties sold | Property 26  
Mortgage Payable    
Deferred Financing Costs [Abstract]    
Amortization of financing costs $ 461,000 433,000
Series B Preferred Stock [Member]    
Deferred Financing Costs [Abstract]    
Unamortized deferred financing costs 115,000 592,000
Series B Preferred Stock [Member] | Mortgage Payable    
Deferred Financing Costs [Abstract]    
Amortization of financing costs $ 630,000 $ 1,014,000
Building and Building Improvements [Member]    
Depreciation and Amortization of Buildings and Improvements [Abstract]    
Estimated useful life 39 years  
Assets Leased to Others [Member] | Minimum [Member]    
Depreciation and Amortization of Buildings and Improvements [Abstract]    
Estimated useful life 1 year  
Assets Leased to Others [Member] | Maximum [Member]    
Depreciation and Amortization of Buildings and Improvements [Abstract]    
Estimated useful life 10 years  
Furniture and Fixtures [Member] | Minimum [Member]    
Depreciation and Amortization of Buildings and Improvements [Abstract]    
Estimated useful life 4 years  
Furniture and Fixtures [Member] | Maximum [Member]    
Depreciation and Amortization of Buildings and Improvements [Abstract]    
Estimated useful life 5 years