Condensed Combined Debtor-in-Possession Financial Information (Details 1) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues and Other Income:
Operating lease revenue	$ 2,737,200	$ 4,768,300
Net loss on disposal of assets	(201,700)	(24,200)
Other loss	(1,300)	(23,200)
Total income	2,534,200	4,777,200
Expenses:
Impairment in value of aircraft	1,940,400	6,654,900
Interest	1,914,700	6,012,900
Professional fees, general and administrative and other	1,595,100	850,300
Bad debt expense	821,000	1,170,000
Depreciation	699,300	2,170,300
Salaries and employee benefits	506,300	516,900
Insurance	247,900	186,900
Maintenance	145,000	80,200
Other taxes	25,600	25,600
Total expenses	7,895,300	17,668,000
Loss before income taxes and equity in earnings of non-debtor entities	(5,361,100)	(12,890,800)
Income tax provision	49,200	(2,712,400)
Net loss	(5,410,300)	$ (10,178,400)
Debtors
Revenues and Other Income:
Operating lease revenue	1,987,200
Net loss on disposal of assets	(2,473,200)
Other loss	(1,700)
Total income	(487,700)
Expenses:
Impairment in value of aircraft	1,940,400
Interest	1,844,700
Professional fees, general and administrative and other	1,632,100
Bad debt expense	821,000
Depreciation	699,300
Salaries and employee benefits	464,300
Insurance	247,900
Maintenance	145,000
Other taxes	25,600
Total expenses	7,820,300
Loss before income taxes and equity in earnings of non-debtor entities	(8,308,000)
Income tax provision	49,200
Equity in earnings of non-debtor entities	2,946,900
Net loss	$ (5,410,300)