Segment Information - Segment Data (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information
Revenue	$ 60,688	$ 43,238	$ 111,550	$ 80,206
Operating income (loss)	179	704	1,012	699
Capital expenditures	419	706	791	842
Depreciation and amortization	1,026	323	1,888	703
Depreciation and amortization		322
Air Cargo
Segment Reporting Information
Revenue	22,069	18,847	42,633	37,697
Operating income (loss)	845	857	1,922	1,589
Capital expenditures	92	44	191	68
Depreciation and amortization	23	14	42	27
Air Cargo | Domestic
Segment Reporting Information
Revenue	22,069	18,607	42,633	37,375
Air Cargo | International
Segment Reporting Information
Revenue	0	240	0	322
Ground equipment sales
Segment Reporting Information
Revenue	18,019	9,189	23,834	17,371
Operating income (loss)	1,887	43	2,029	1,465
Capital expenditures	6	4	16	17
Depreciation and amortization	46	32	95	64
Ground equipment sales | Domestic
Segment Reporting Information
Revenue	14,913	8,178	18,821	14,156
Operating income (loss)			2,029	1,465
Ground equipment sales | International
Segment Reporting Information
Revenue	3,106	1,011	5,013	3,215
Commercial jet engines and parts
Segment Reporting Information
Revenue	18,986	14,916	41,841	24,510
Operating income (loss)	(204)	1,902	2,870	1,664
Capital expenditures	278	646	352	738
Depreciation and amortization	563	214	996	479
Commercial jet engines and parts | Domestic
Segment Reporting Information
Revenue	11,611	10,461	28,343	17,230
Operating income (loss)			2,870	1,664
Commercial jet engines and parts | International
Segment Reporting Information
Revenue	7,375	4,455	13,498	7,280
Corporate and other
Segment Reporting Information
Revenue	1,614	286	3,242	628
Operating income (loss)	(2,349)	(2,098)	(5,809)	(4,019)
Capital expenditures	43	12	232	19
Depreciation and amortization	394	62	755	133
Corporate and other | Domestic
Segment Reporting Information
Revenue	778	210	1,526	464
Corporate and other | International
Segment Reporting Information
Revenue	$ 836	$ 76	$ 1,716	$ 164