Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Assets:
Accounts receivable, deferred rent	$ 604,800	$ 359,200
Aircraft and aircraft engines held for lease, accumulated depreciation	32,639,600	31,074,600
Liabilities:
Unamortized debt issuance costs	$ 1,999,900	$ 2,814,000
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, authorized (in shares)	2,000,000	2,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, authorized (in shares)	10,000,000	10,000,000
Common stock, issued (in shares)	1,629,999	1,629,999
Common stock, outstanding (in shares)	1,566,699	1,566,699
Treasury stock (in shares)	63,300	63,300