Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Operating activities:
Net (loss)/income	$ (8,081,200)	$ 7,399,200
Adjustments to reconcile net (loss)/income to net cash provided by operating activities:
Net loss/(gain) on disposal of assets	3,408,700	(791,500)
Net gain on sales-type finance leases	0	(297,400)
Non-cash income	(42,700)	0
Depreciation	12,637,100	12,025,600
Amortization	61,700	0
Provision for impairment in value of aircraft	2,971,500	1,002,100
Non-cash interest	1,615,500	1,012,300
Settlement loss	2,527,000	0
Deferred income taxes	(1,390,000)	(4,296,800)
Changes in operating assets and liabilities:
Accounts receivable	(537,400)	1,000,700
Finance leases receivable	(133,100)	(510,700)
Prepaid expenses and other	(457,800)	(123,500)
Taxes receivable	22,500	0
Accounts payable and accrued expenses	1,802,700	(572,000)
Accrued payroll	(14,800)	0
Accrued interest on notes payable	(147,100)	188,100
Maintenance reserves and accrued costs	3,552,600	(2,171,000)
Security deposits	(4,100)	(232,300)
Unearned revenue	827,300	608,500
Income taxes payable	(677,200)	329,400
Net cash provided by operating activities	17,941,200	14,570,700
Investing activities:
Proceeds from sale of aircraft and aircraft engines held for lease, net of re-sale fees	11,688,400	12,741,200
Proceeds from sale of assets held for sale, net of re-sale fees	4,945,200	193,000
Investment in direct financing leases	0	(7,614,200)
Purchases of aircraft and aircraft engines	(22,844,300)	(32,063,100)
Acquisition of JHC, net of cash acquired	(2,875,100)	0
Net cash used in investing activities	(9,085,800)	(26,743,100)
Financing activities:
Issuance of notes payable - Credit Facility	21,000,000	35,900,000
Repayment of notes payable - Credit Facility	(32,600,000)	(12,000,000)
Debt issuance costs	(70,000)	(1,152,500)
Repayment of notes payable - special purpose financing	(4,300,700)	(4,111,700)
Net cash (used in)/provided by financing activities	(15,970,700)	18,635,800
Net (decrease)/increase in cash and cash equivalents	(7,115,300)	6,463,400
Cash and cash equivalents, beginning of year	8,657,800	2,194,400
Cash and cash equivalents, end of year	$ 1,542,500	$ 8,657,800