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Organization and Summary of Significant Accounting Policies - Schedule of Restricted Cash and Cash Equivalents (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Debt Disclosure [Abstract]    
Funds held in escrow under the terms of notes or bonds payable for purposes of paying future debt service costs $ 410,866 $ 351,298
Restricted Cash $ 410,866 $ 351,298