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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, aircraft, airframes and aircraft parts.

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The number of aircraft owned and available for lease as of the date of the latest balance sheet.

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Percentage of net book value of all planes combined.

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Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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The cash outflow for acquisition of long-lived depreciable flight assets, including owned aircraft or capital improvements.

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The number of aircraft sold by the entity during the period.

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Aircraft and Aircraft Engines Held for Lease or Sale (Details)	3 Months Ended		12 Months Ended
	Mar. 31, 2018 USD ($) Aircraft Asset	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($) Aircraft
Aircraft and aircraft engines held for lease or sale [Abstract]
Payment for equipment and acquisition costs related to aircraft purchased	$ 1,236,000	$ 62,800
Proceeds from the sale of parts	1,683,500	16,200
Gain (loss) on sale of aircraft and aircraft parts	(8,200)	13,900
Minimum future lease revenue payments receivable under noncancelable operating leases [Abstract]
Remainder of 2018	18,515,500
2019	24,641,300
2020	23,003,000
2021	15,901,600
2022	13,944,000
Thereafter	29,447,500
Total	$ 125,452,900
Regional Jet Aircraft [Member]
Aircraft and aircraft engines held for lease or sale [Abstract]
Number owned \| Aircraft	13		13
Percentage of net book value	83.00%		82.00%
Turboprop Aircraft [Member]
Aircraft and aircraft engines held for lease or sale [Abstract]
Number owned \| Aircraft	8		10
Percentage of net book value	16.00%		17.00%
Engines [Member]
Aircraft and aircraft engines held for lease or sale [Abstract]
Number owned \| Aircraft	1		1
Percentage of net book value	1.00%		1.00%
Held for Lease [Member]
Aircraft and aircraft engines held for lease or sale [Abstract]
Proceeds from lease payments as maintenance reserves	$ 1,050,000
Number of assets returned \| Aircraft			3
Payment for equipment and acquisition costs related to aircraft purchased	$ 1,236,000	62,800
Number of aircraft purchased \| Aircraft	2
Number of aircraft sold \| Aircraft	2
Gain (loss) on sale of aircraft and aircraft parts	$ (8,200)
Held for Lease [Member] \| Turboprop Aircraft [Member]
Aircraft and aircraft engines held for lease or sale [Abstract]
Percentage of net book value	11.00%
Number of assets held for lease, off lease \| Asset	6
Held for Sale [Member] \| Aircraft [Member]
Aircraft and aircraft engines held for lease or sale [Abstract]
Number of assets held for sale \| Aircraft	2
Held for Sale [Member] \| Aircraft Parts [Member]
Aircraft and aircraft engines held for lease or sale [Abstract]
Proceeds from the sale of parts	$ 931,800	16,200
Accrued receivables	$ 10,600		$ 779,700
Carrying value of parts sold		2,300	144,600
Gain (loss) on sale of aircraft and aircraft parts		$ 13,900	$ 18,100