Condensed Consolidated Balance Sheets (Unaudited) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Assets:
Cash and cash equivalents	$ 4,793,100	$ 8,657,800
Accounts receivable, including deferred rent of $592,100 and $707,300 at March 31, 2018 and December 31, 2017, respectively	3,159,000	3,825,100
Finance leases receivable	22,893,400	23,561,000
Aircraft and aircraft engines held for lease, net of accumulated depreciation of $35,068,600 and $33,234,200 at March 31, 2018 and December 31, 2017, respectively	188,858,000	195,098,200
Assets held for sale	4,821,800	4,966,500
Prepaid expenses and other	1,662,600	301,300
Total assets	226,187,900	236,409,900
Liabilities:
Accounts payable and accrued expenses	820,100	645,200
Notes payable and accrued interest, net of unamortized debt issuance costs of $1,817,200 and $2,216,000 at March 31, 2018 and December 31, 2017, respectively	133,768,100	145,598,200
Maintenance reserves	27,113,600	26,942,800
Accrued maintenance costs	294,300	1,275,300
Security deposits	2,968,800	3,147,900
Unearned revenues	4,398,600	2,447,500
Deferred income taxes	8,583,900	8,533,700
Income taxes payable	556,500	452,600
Total liabilities	178,503,900	189,043,200
Commitments and contingencies (Note 5)
Stockholders' equity:
Preferred stock, $0.001 par value, 2,000,000 shares authorized, no shares issued and outstanding	0	0
Common stock, $0.001 par value, 10,000,000 shares authorized, 1,629,999 shares issued, 1,416,699 shares outstanding	1,600	1,600
Paid-in capital	14,780,100	14,780,100
Retained earnings	35,939,100	35,621,800
Shareholders equity before treasury stock	50,720,800	50,403,500
Treasury stock at cost, 213,300 shares	(3,036,800)	(3,036,800)
Total stockholders' equity	47,684,000	47,366,700
Total liabilities and stockholders' equity	$ 226,187,900	$ 236,409,900