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, 2019
Dec. 31, 2018
Dec. 31, 2017
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]      
Beginning balance $ 1,300,000 $ 1,500,000 $ 1,500,000
Additions:      
New loans 0 0 0
Interest receivable 0 0 0
Total Additions 0 0 0
Deductions:      
Principal repayments 65,000 236,867 0
Foreclosures 0 0 0
Amortization of deferred costs 0 0 0
Principal, Interest and Deferred Costs Write Up 0 (36,867) 0
Total deductions 65,000 200,000 0
Ending balance $ 1,235,000 $ 1,300,000 $ 1,500,000