Condensed Combined DebtorinPossession Financial Information (Details) - USD ($)	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
Cash and cash equivalents	$ 2,709,300		$ 2,408,700
Accounts receivable	108,100		256,600
Finance leases receivable, net of allowance for doubtful accounts of $1,190,000	700,000		2,547,000
Assets held for sale	53,409,400		40,838,900
Property, equipment and furnishings, net of accumulated depreciation of $13,800	10,200		14,900
Office lease right of use, net of accumulated amortization of $43,900	109,200		142,400
Prepaid expenses and other assets	367,800		255,300
Total assets	58,652,800		93,377,800
Accrued payroll	241,000		190,100
Lease liability	137,300		172,000
Maintenance reserves	0		2,000,600
Security deposits	0		716,000
Accrued maintenance costs	19,500		46,100
Unearned revenues	0		1,027,400
Taxes payable	3,700		900
Total liabilities not subject to compromise	1,137,200		96,389,300
Liabilities subject to compromise	80,277,600		0
Total liabilities	84,875,200		110,994,100
Total stockholders' deficit attributable to the Debtors	(26,222,400)	$ (23,024,600)	(17,616,300)	$ 333,800	$ 13,663,900	$ 23,258,600
Total liabilities and stockholders' deficit	58,652,800		$ 93,377,800
Debtors
Cash and cash equivalents	2,224,500
Accounts receivable	91,900
Due from non-debtor affiliates	351,500
Finance leases receivable, net of allowance for doubtful accounts of $1,190,000	700,000
Assets held for sale	53,409,400
Property, equipment and furnishings, net of accumulated depreciation of $13,800	10,200
Office lease right of use, net of accumulated amortization of $43,900	109,200
Investment in non-debtor subsidiaries	3,716,700
Prepaid expenses and other assets	367,900
Total assets	60,981,300
Accounts payable	655,700
Payable to non-debtor subsidiaries	2,425,600
Accrued payroll	225,300
Lease liability	137,300
Maintenance reserves	2,028,000
Security deposits	466,000
Accrued maintenance costs	19,500
Unearned revenues	966,400
Taxes payable	2,300
Total liabilities not subject to compromise	6,926,100
Liabilities subject to compromise	80,277,600
Total liabilities	87,203,700
Total stockholders' deficit attributable to the Debtors	(26,222,400)
Total liabilities and stockholders' deficit	$ 60,981,300