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Real Estate Owned, Net - Cash information related to the ground lease (Details) - USD ($)
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Real Estate [Abstract]    
Operating cash flows from an operating lease $ 519,750 $ 316,125
Right-of-use assets obtained in exchange for lease obligations, Operating leases $ 519,750 $ 316,125