Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Cash Flows [Abstract]
Net cash used in operating activities	$ (176,700)	$ (624,500)
Investing Activities:
Proceeds from sale of aircraft and aircraft engines held for lease, net of re-sale fees	10,850,700	0
Proceeds from sale of assets held for sale, net of re-sale fees	0	3,104,800
Net cash provided by investing activities	10,850,700	3,104,800
Financing Activities:
Repayment of notes payable - MUFG Credit Facility and Drake Loan	(11,011,700)	(1,165,000)
Repayment of notes payable - Nord Loans	(703,100)	(664,000)
Issuance of notes payable - PPP Loan	170,000	0
Debt issuance costs	(5,200)	(80,300)
Net cash used in financing activities	(11,550,000)	(1,909,300)
Net (decrease)/increase in cash, cash equivalents and restricted cash	(876,000)	571,000
Cash, cash equivalents and restricted cash, beginning of period	5,100,900	3,427,100
Cash, cash equivalents and restricted cash, end of period	4,224,900	3,998,100
Total cash, cash equivalents and restricted cash shown in the statement of cash flows	$ 5,100,900	$ 3,998,100