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Subsequent Events (Details Narrative) - USD ($)
Jul. 13, 2018
Jul. 09, 2018
Jun. 30, 2018
Dec. 31, 2017
Debt instrument loan mortgage amount     $ 301,771,576 $ 304,895,117
Subsequent Event [Member] | Amended and Restated 2013 Incentive Award Plan [Member] | Four Participants [Member]        
Number of shares purchase during period   40,000    
Fair value of grant shares   $ 94,732    
Grants vest term   1 year    
Subsequent Event [Member] | Federal Home Loan Mortgage Corporation [Member] | Wells Fargo Bank, N.A [Member]        
Debt instrument loan mortgage amount $ 13,442,000      
Debt mortgage fixed rate 4.27%      
Debt maturity date Aug. 01, 2028