Segment Information - Segment Data (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information
Revenue	$ 50,862	$ 36,968
Operating income (loss)	834	(4)
Capital expenditures	371	136
Depreciation and amortization	861	380
Air Cargo
Segment Reporting Information
Revenue	20,564	18,851
Operating income (loss)	1,077	732
Capital expenditures	99	23
Depreciation and amortization	20	13
Air Cargo | Domestic
Segment Reporting Information
Revenue	20,564	18,768
Air Cargo | International
Segment Reporting Information
Revenue	0	83
Ground equipment sales
Segment Reporting Information
Revenue	5,815	8,182
Operating income (loss)	142	1,423
Capital expenditures	9	13
Depreciation and amortization	49	32
Ground equipment sales | Domestic
Segment Reporting Information
Revenue	3,907	5,978
Operating income (loss)	142	1,423
Ground equipment sales | International
Segment Reporting Information
Revenue	1,908	2,204
Commercial jet engines and parts
Segment Reporting Information
Revenue	22,855	9,594
Operating income (loss)	3,074	(238)
Capital expenditures	74	92
Depreciation and amortization	434	265
Commercial jet engines and parts | Domestic
Segment Reporting Information
Revenue	16,732	6,769
Operating income (loss)	3,074	(238)
Commercial jet engines and parts | International
Segment Reporting Information
Revenue	6,123	2,825
Corporate and other
Segment Reporting Information
Revenue	1,628	341
Operating income (loss)	(3,459)	(1,921)
Capital expenditures	189	8
Depreciation and amortization	358	70
Corporate and other | Domestic
Segment Reporting Information
Revenue	749	254
Corporate and other | International
Segment Reporting Information
Revenue	$ 879	$ 87