Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Statement of Cash Flows [Abstract]
Net cash provided by operating activities	$ 6,419,900	$ 11,191,500
Investing activities:
Proceeds from sale of aircraft and aircraft engines held for lease, net of re-sale fees	1,710,500	3,186,800
Proceeds from sale of assets held for sale, net of re-sale fees	2,181,600	2,644,900
Investment in aircraft parts and acquisition costs	0	(22,606,000)
Net cash provided by/(used in) investing activities	3,892,100	(16,774,300)
Financing activities:
Issuance of notes payable - Credit Facility	5,100,000	21,000,000
Repayment of notes payable - Credit Facility	(40,100,000)	(17,500,000)
Issuance of notes payable - Term Loans	44,310,000	0
Repayment of notes payable - UK LLC SPE Financing	(9,211,100)	(2,127,000)
Repayment of notes payable - Term Loans	(3,533,600)	0
Debt issuance costs	(5,063,100)	(70,000)
Net cash (used in)/provided by financing activities	(8,497,800)	1,303,000
Net increase/(decrease) in cash and cash equivalents	1,814,200	(4,279,800)
Cash and cash equivalents, beginning of period	1,542,500	8,657,800
Cash and cash equivalents, end of period	$ 3,356,700	$ 4,378,000