Notes Payable and Accrued Interest (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Unamortized debt issuance costs	$ 0	$ (780,900)
Notes payable and accrued interest	80,633,400	88,793,200
Drake Loan
Principal	79,439,900	88,557,000
Unamortized debt issuance costs	0	(780,900)
Accrued interest	744,500	739,000
Paycheck Protection Program Loans (Subject to Compromise)
Principal	446,400	276,400
Accrued interest	2,600	1,700
Nord Loans Held for Sale
Principal	0	14,091,300
Unamortized debt issuance costs	0	(313,400)
Accrued interest	0	59,000
Notes payable and accrued interest	$ 0	$ 13,836,900