Annual report pursuant to Section 13 and 15(d)

Mortgages Receivable (Details Textual)

v3.19.1
Mortgages Receivable (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Mortgage Loans on Real Estate, Default Interest Rate 18.00%  
Payments to Acquire Mortgage Receivable $ 42,078,191 $ 53,468,949
Proceeds from Collection of Mortgages Receivable 24,641,469 23,948,601
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate $ 78,011,653 62,166,937
Gain (Loss) on Sale of Properties   $ 19,000
Mortgage Concentration Risk [Member]    
Concentration Risk, Percentage 10.00% 10.00%
Mortgages [Member]    
Payments to Acquire Mortgage Receivable $ 42,078,191 $ 53,468,949
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]    
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate 5,100,000 $ 2,200,000
Minimum [Member]    
Mortgage Loans on Real Estate, Face Amount of Mortgages $ 8,113  
Mortgage Loans on Real Estate, Interest Rate 5.00%  
Maximum [Member]    
Mortgage Loans on Real Estate, Face Amount of Mortgages $ 2,038,586  
Mortgage Loans on Real Estate, Interest Rate 12.50%