Quarterly report pursuant to Section 13 or 15(d)

Mortgages Receivable - Additional information (Details)

v3.20.2
Mortgages Receivable - Additional information (Details)
6 Months Ended
Jun. 30, 2020
USD ($)
loan
Jun. 30, 2019
USD ($)
Dec. 31, 2019
USD ($)
Mortgage Loans on Real Estate, Default Interest Rate 18.00%    
Payments to Acquire Mortgage Receivable $ 42,303,747 $ 28,516,128  
Proceeds from Collection of Mortgages Receivable 25,417,062 21,098,466  
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate $ 111,430,500   $ 94,348,689
Mortgage loan portfolio number of loans | loan 477    
Purchased notes receivable      
Mortgage Loans on Real Estate, Face Amount of Mortgages $ 5,248,235    
Unfunded construction draws 722,450    
Amount of notes having maturities of three years or less $ 140,000    
Mortgage Concentration Risk [Member]      
Concentration Risk, Percentage 10.00%    
Mortgages [Member]      
Payments to Acquire Mortgage Receivable $ 42,303,747 $ 28,516,128  
Minimum [Member]      
Debt term (in years) 1 year    
Mortgage Loans on Real Estate, Interest Rate 5.00%    
Interest rate (as a percent) 5.00%    
Minimum [Member] | Purchased notes receivable      
Mortgage Loans on Real Estate, Interest Rate 5.00%    
Interest rate (as a percent) 5.00%    
Maximum [Member]      
Debt term (in years) 3 years    
Mortgage Loans on Real Estate, Face Amount of Mortgages $ 2,200,000    
Mortgage Loans on Real Estate, Interest Rate 13.00%    
Interest rate (as a percent) 13.00%    
Maximum [Member] | Purchased notes receivable      
Mortgage Loans on Real Estate, Interest Rate 12.00%    
Interest rate (as a percent) 12.00%    
Thirteen Mortgage Loans [Member]      
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate $ 3,600,000    
Mortgage loan portfolio number of loans in process of foreclosure | loan 13