Annual report pursuant to Section 13 and 15(d)

SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE - Reconciliation of Mortgage Loans (Details)

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SCHEDULE IV - MORTGAGE LOANS ON REAL ESTATE - Reconciliation of Mortgage Loans (Details) - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Movement in Mortgage Loans on Real Estate [Roll Forward]      
Beginning balance $ 1,500,000 $ 6,877,021 $ 20,435,170
Additions:      
New loans 0 100,000 0
Net deferred costs 0 0 (8,211)
Interest receivable 0 (95,114) 302,395
Total Additions 0 4,886 294,184
Deductions:      
Principal repayments 0 0 100,000
Foreclosures 0 1,857,000 0
Amortization of deferred costs 0 (2,025) (6,804)
Principal, Interest and Deferred Costs Write Down 0 3,526,932 13,759,137
Total deductions 0 5,381,907 13,852,333
Ending balance $ 1,500,000 $ 1,500,000 $ 6,877,021