Notes Payable and Accrued Interest (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Notes payable	$ 80,231,500	$ 88,793,200
Unamortized debt issuance costs	(780,900)	(780,900)
Paycheck Protection Program Loans (Subject to Compromise)
Principal	170,000	276,400
Accrued interest	600	1,700
Drake Loan
Principal	79,936,800	88,557,000
Accrued interest	124,100	739,000
Unamortized debt issuance costs	0	(780,900)
Nord Loans Held for Sale
Principal	0	14,091,300
Accrued interest	0	59,000
Unamortized debt issuance costs	0	(313,400)
Notes payable and accrued interest	$ 0	$ 13,836,900

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying value as of the balance sheet date of notes payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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The total amount due within more than 12 month, or the operating cycle if longer, on all notes payable to banks paid on an installment. This can include the amount of any loans from the applicant firm. This does not, however, include any mortgage balances.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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