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Related Party Transactions (Details) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2012
Dec. 31, 2015
Related Party Transactions [Abstract]        
Company contribution to a multi employer 401K plan at discretionary amount of employee's cash compensation, maximum percentage 6.00%      
Company contribution to a multi employer 401K plan at discretionary amount of employee's cash compensation, amount $ 171,000 $ 215,200    
Deferred compensation, employee contribution, percentage 2.00%      
Deferred compensation, company contribution, amount $ 78,400 64,200    
Number of times the employer contribution is higher than the amount deferred by employees 300.00%      
Deferred compensation, cumulative unfunded liability $ 1,900,000     $ 1,800,000
Ancillary costs and expenses 3,700,000 4,000,000    
Liability due to The Saul Organization for the Company's share of these ancillary costs and expenses 678,600     $ 655,000
Extended lease expiration period     5 years  
Percentage of annual increase in base rent     3.00%  
Rent expense 427,800 451,700    
Insurance commissions and fees expense $ 166,200 $ 170,100