Income Taxes (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Current tax provision [Abstract]
Federal	$ 0	$ 0
State	3,200	800
Foreign	414,000	329,500
Current tax provision	417,200	330,300
Deferred tax (benefit)/provision:
Federal	(1,270,400)	1,159,700
State	(26,100)	35,100
Foreign	(93,500)	(111,300)
Net legislative change in corporate tax rate	0	(5,380,300)
Deferred tax benefit	(1,390,000)	(4,296,800)
Total income tax benefit	(972,800)	(3,966,500)
Income tax rate reconciliation [Abstract]
Income tax provision at statutory federal income tax rate	(1,901,400)	1,167,100
State tax (benefit)/provision, net of federal benefit	(44,500)	33,100
Non-deductible expenses	647,200	213,500
Non-deductible management and acquisition fees	325,900	0
Net legislative change in corporate tax rate	0	(5,380,200)
Total income tax benefit	(972,800)	(3,966,500)
Deferred tax assets [Abstract]
Current and prior year tax losses	4,065,100	3,362,100
Maintenance reserves	3,100,800	2,810,200
Foreign tax credit	611,900	295,800
Deferred interest expense	81,800	0
Deferred maintenance, bad debt allowance and other	92,500	38,800
Alternative minimum tax credit	45,500	45,500
Deferred tax assets	7,997,600	6,552,400
Deferred tax liabilities [Abstract]
Accumulated depreciation on aircraft and aircraft engines	(14,773,800)	(14,591,000)
Deferred income	(320,600)	(495,100)
Favorable Lease	(185,400)	0
Net deferred tax liabilities	$ (7,282,200)	(8,533,700)
Federal tax rate	21.00%
Current year federal operating loss carryovers	$ 19,000,000
Percentage of annual taxable income that can be offset in future years	80.00%
Current year federal operating loss carryovers through 2037	$ 16,000,000
Current year federal operating loss carryovers that may carryforward indefinitely	5,000,000
Current year state operating loss carryovers	327,000
Pre-tax income from domestic sources	6,000,000	2,200,000
Pre-tax income from foreign sources	3,100,000	1,200,000
Changes to unrecognized tax benefits during period	0	0
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance at January 1	0	0
Additions for prior years' tax positions	85,400	0
Balance at December 31	$ 85,400	$ 0