Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Operating activities:
Net income	$ 1,221,700	$ 6,437,600
Adjustments to reconcile net income to net cash provided by operating activities:
Net gain on disposal of assets	(2,149,600)	(6,790,700)
Net gain on sales-type finance leases	(1,216,700)	(5,179,200)
Depreciation	9,139,700	9,062,100
Provision for impairment in value of aircraft	1,226,800	1,282,300
Non-cash interest	879,000	1,394,000
Deferred income taxes	626,300	3,582,900
Changes in operating assets and liabilities:
Accounts receivable	400,100	(2,363,100)
Finance leases receivable	(668,200)	(44,700)
Income taxes receivable	0	(25,000)
Prepaid expenses and other	(10,200)	168,500
Accounts payable and accrued expenses	(152,400)	(359,500)
Accrued interest on notes payable	(35,400)	(155,000)
Maintenance reserves and accrued costs	698,700	3,977,100
Security deposits	780,500	(745,700)
Unearned revenue	481,000	315,200
Taxes payable	123,200	0
Net cash provided by operating activities	11,344,500	10,556,800
Investing activities:
Proceeds from sale of aircraft and aircraft engines held for lease, net of re-sale fees	2,918,400	11,100,600
Proceeds from sale of assets held for sale, net of re-sale fees	3,422,800	3,616,400
Proceeds from insurance	18,886,700	0
Purchases of aircraft and aircraft engines	(54,357,600)	(1,333,700)
Net cash (used in)/provided by investing activities	(29,129,700)	13,383,300
Financing activities:
Issuance of notes payable - Credit Facility	31,300,000	0
Repayment of notes payable - Credit Facility	(31,600,000)	(23,000,000)
Debt issuance costs	(65,000)	(59,600)
Issuance of notes payable - special purpose financing	19,609,900	0
Repayment of notes payable - special purpose financing	(1,986,300)	0
Net cash provided by/(used in) financing activities	17,258,600	(23,059,600)
Net (decrease)/increase in cash and cash equivalents	(526,600)	880,500
Cash and cash equivalents, beginning of year	2,721,000	1,840,500
Cash and cash equivalents, end of year	$ 2,194,400	$ 2,721,000