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Schedule III - Real Estate and Related Depreciation (Parenthetical) (Details) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Real Estate And Accumulated Depreciation [Line Items]    
Principal balance outstanding $ 18,335,407 $ 18,847,475
Line of credit, outstanding borrowings   5,144,000
Revolving Line of Credit    
Real Estate And Accumulated Depreciation [Line Items]    
Line of credit, outstanding borrowings $ 0 $ 5,144,000