Operating Segments (Details)	12 Months Ended
	Dec. 31, 2016 USD ($) Segment	Dec. 31, 2015 USD ($)
Operating Segments [Abstract]
Number of business segments | Segment	1
Operating lease revenues derived from lessees domiciled in the United States	17.00%	16.00%
Segment Reporting Information [Line Items]
Operating Lease Revenue	$ 24,464,500	$ 25,467,200
Net Book Value of Aircraft and Aircraft Engines Held for Lease	192,799,800	155,258,100
Europe and United Kingdom [Member]
Segment Reporting Information [Line Items]
Operating Lease Revenue	9,999,900	7,181,600
Net Book Value of Aircraft and Aircraft Engines Held for Lease	105,088,300	44,368,100
North America [Member]
Segment Reporting Information [Line Items]
Operating Lease Revenue	6,840,500	6,519,100
Net Book Value of Aircraft and Aircraft Engines Held for Lease	42,824,300	42,162,900
Africa [Member]
Segment Reporting Information [Line Items]
Operating Lease Revenue	4,430,300	5,096,300
Net Book Value of Aircraft and Aircraft Engines Held for Lease	21,724,400	27,234,800
Off lease [Member]
Segment Reporting Information [Line Items]
Net Book Value of Aircraft and Aircraft Engines Held for Lease	13,113,200	7,443,200
Asia [Member]
Segment Reporting Information [Line Items]
Operating Lease Revenue	1,800,400	3,783,000
Net Book Value of Aircraft and Aircraft Engines Held for Lease	6,463,700	27,132,800
Australia [Member]
Segment Reporting Information [Line Items]
Operating Lease Revenue	1,140,000	1,097,000
Net Book Value of Aircraft and Aircraft Engines Held for Lease	3,585,900	4,376,300
Central and South America [Member]
Segment Reporting Information [Line Items]
Operating Lease Revenue	253,400	1,790,200
Net Book Value of Aircraft and Aircraft Engines Held for Lease	$ 0	$ 2,540,000