Adjustment of Previously Reported Financial Information (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013	Jan. 31, 2013	Dec. 31, 2012
Balance Sheets [Abstract]
Cash and cash equivalents	$ 2,588,100	$ 5,077,300	$ 2,588,100	$ 5,077,300	$ 2,112,700		$ 1,596,800
Accounts receivable, net	2,726,300		2,726,300		3,303,800
Finance leases receivable	945,400		945,400		1,895,200
Aircraft and aircraft engines held for lease, net	159,408,600		159,408,600		152,954,600
Assets held for sale	6,561,200		6,561,200		735,000
Prepaid expenses and other	4,296,700		4,296,700		3,633,000
Total assets	176,526,300		176,526,300		164,634,300
Accounts payable and accrued expenses	2,239,700		2,239,700		1,202,700
Notes payable and accrued interest	108,352,400		108,352,400		77,527,300
Security deposits	5,579,300		5,579,300		6,265,000
Unearned revenues	2,121,400		2,121,400		646,700
Deferred income taxes	7,540,700		7,540,700		14,573,800
Total liabilities	142,189,200		142,189,200		118,499,400
Preferred stock	0		0		0
Common stock	1,600		1,600		1,600
Paid-in capital	14,780,100		14,780,100		14,780,100
Retained earnings	20,059,500		20,059,500		31,857,300
Treasury stock	(504,100)		(504,100)		(504,100)
Total stockholders' equity	34,337,100		34,337,100		46,134,900
Total liabilities and stockholders' equity	176,526,300		176,526,300		164,634,300
Statement of Operations [Abstract]
Operating lease revenue, net	4,815,400	4,368,200	15,998,500	13,941,200
Maintenance reserves income, net	0	6,146,000	3,393,600	13,866,000
Gain on disposal of assets and other income	1,809,400	1,985,200	2,963,900	4,147,700
Total Income	6,625,500	12,537,200	22,507,800	32,599,400
Maintenance	2,173,200	1,413,800	5,819,800	4,883,700
Depreciation	1,731,500	1,803,600	5,609,900	5,376,600
Management fees	1,205,000	1,058,400	3,864,900	3,231,000
Interest	1,225,000	966,200	3,793,000	3,034,300
Professional fees, general and administrative and other	360,200	256,400	1,488,000	881,000
Insurance	413,600	276,300	1,034,100	827,900
Bad debt expense	0	357,600	0	357,600
Total expenses	19,189,700	6,154,800	40,536,000	18,659,700
Income before taxes	(12,564,200)	6,382,400	(18,028,200)	13,939,700
Tax provision	(4,317,200)	2,361,200	(6,230,400)	4,764,300
Net (loss)/income	(8,247,000)	4,021,200	(11,797,800)	9,175,400
(Loss)/earnings per share:
Basic (in dollars per share)	$ (5.34)	$ 2.61	$ (7.64)	$ 5.95
Diluted (in dollars per share)	$ (5.34)	$ 2.53	$ (7.64)	$ 5.78
Cumulative net decrease of in stockholders' equity						8,088,200
As Reported Previously [Member]
Balance Sheets [Abstract]
Cash and cash equivalents					2,112,700
Accounts receivable, net					3,313,700
Finance leases receivable					1,895,200
Aircraft and aircraft engines held for lease, net					152,375,200
Assets held for sale					735,000
Prepaid expenses and other					3,633,000
Total assets					164,064,800
Accounts payable and accrued expenses					1,175,300
Notes payable and accrued interest					77,527,300
Maintenance reserves and accrued maintenance costs					13,254,100
Security deposits					6,265,000
Unearned revenues					646,700
Deferred income taxes					16,099,700
Total liabilities					114,968,100
Preferred stock					0
Common stock					1,600
Paid-in capital					14,780,100
Retained earnings					34,819,100
Treasury stock					(504,100)
Total stockholders' equity					49,096,700
Total liabilities and stockholders' equity					164,064,800
Statement of Operations [Abstract]
Operating lease revenue, net		4,368,200		13,941,200
Maintenance reserves income, net		556,900		8,260,500
Gain on disposal of assets and other income		2,023,000		4,792,200
Total Income		6,948,100		26,993,900
Maintenance		2,451,100		6,239,900
Depreciation		1,790,300		5,339,700
Management fees		1,054,000		3,218,500
Interest		966,200		3,034,300
Professional fees, general and administrative and other		278,900		948,600
Insurance		276,300		827,900
Bad debt expense		357,600		357,600
Total expenses		7,174,400		19,966,500
Income before taxes		(226,300)		7,027,400
Tax provision		114,300		2,414,100
Net (loss)/income		(340,600)		4,613,300
(Loss)/earnings per share:
Basic (in dollars per share)		$ (0.22)		$ 2.99
Diluted (in dollars per share)		$ (0.22)		$ 2.91
As Adjusted [Member]
Balance Sheets [Abstract]
Cash and cash equivalents					2,112,700
Accounts receivable, net					3,303,800
Finance leases receivable					1,895,200
Aircraft and aircraft engines held for lease, net					152,954,600
Assets held for sale					735,000
Prepaid expenses and other					3,633,000
Total assets					164,634,300
Accounts payable and accrued expenses					1,202,700
Notes payable and accrued interest					77,527,300
Maintenance reserves and accrued maintenance costs					18,283,900
Security deposits					6,265,000
Unearned revenues					646,700
Deferred income taxes					14,573,800
Total liabilities					118,499,400
Preferred stock					0
Common stock					1,600
Paid-in capital					14,780,100
Retained earnings					31,857,300
Treasury stock					(504,100)
Total stockholders' equity					46,134,900
Total liabilities and stockholders' equity					164,634,300
Statement of Operations [Abstract]
Operating lease revenue, net		4,368,200		13,941,200
Maintenance reserves income, net		6,146,000		13,866,000
Gain on disposal of assets and other income		2,023,000		4,792,200
Total Income		12,537,200		32,599,400
Maintenance		1,413,800		4,883,700
Depreciation		1,803,600		5,376,600
Management fees		1,058,400		3,231,000
Interest		966,200		3,034,300
Professional fees, general and administrative and other		278,900		948,600
Insurance		276,300		827,900
Bad debt expense		357,600		357,600
Total expenses		6,154,800		18,659,700
Income before taxes		6,382,400		13,939,700
Tax provision		2,361,200		4,764,300
Net (loss)/income		4,021,200		9,175,400
(Loss)/earnings per share:
Basic (in dollars per share)		$ 2.61		$ 5.95
Diluted (in dollars per share)		$ 2.53		$ 5.78
Effect of Change [Member]
Balance Sheets [Abstract]
Cash and cash equivalents					0
Accounts receivable, net					(9,900)
Finance leases receivable					0
Aircraft and aircraft engines held for lease, net					579,400
Assets held for sale					0
Prepaid expenses and other					0
Total assets					569,500
Accounts payable and accrued expenses					27,400
Notes payable and accrued interest					0
Maintenance reserves and accrued maintenance costs					5,029,800
Security deposits					0
Unearned revenues					0
Deferred income taxes					(1,525,900)
Total liabilities					3,531,300
Preferred stock					0
Common stock					0
Paid-in capital					0
Retained earnings					(2,961,800)
Treasury stock					0
Total stockholders' equity					(2,961,800)
Total liabilities and stockholders' equity					569,500
Statement of Operations [Abstract]
Operating lease revenue, net		0		0
Maintenance reserves income, net		5,589,100		5,605,500
Gain on disposal of assets and other income		0		0
Total Income		5,589,100		5,605,500
Maintenance		(1,037,300)		(1,356,200)
Depreciation		13,300		36,900
Management fees		4,400		12,500
Interest		0		0
Professional fees, general and administrative and other		0		0
Insurance		0		0
Total expenses		(1,019,600)		(1,306,800)
Income before taxes		6,608,700		6,912,300
Tax provision		2,246,900		2,350,200
Net (loss)/income		$ 4,361,800		$ 4,562,100
(Loss)/earnings per share:
Basic (in dollars per share)		$ 2.83		$ 2.96
Diluted (in dollars per share)		$ 2.75		$ 2.87