Operating Segments (Details 1) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Net book value of aircraft and aircraft engines held for lease	$ 108,368,600	$ 184,019,900
Europe and United Kingdom
Net book value of aircraft and aircraft engines held for lease	44,569,000	110,069,000
North America
Net book value of aircraft and aircraft engines held for lease	63,799,600	68,485,400
Asia
Net book value of aircraft and aircraft engines held for lease	$ 0	$ 5,465,500