Supplementary Financial Information - Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Mar. 31, 2022
Intangible Assets
Gross Carrying Amount	$ 22,807	$ 21,218
Accumulated Amortization	(12,617)	(9,438)
Net Book Value	10,190	11,780
Technology
Intangible Assets
Gross Carrying Amount	4,986	4,986
Accumulated Amortization	(3,444)	(2,519)
Net Book Value	1,542	2,467
Customer contracts / relationships
Intangible Assets
Gross Carrying Amount	9,550	9,550
Accumulated Amortization	(4,371)	(2,959)
Net Book Value	5,179	6,591
Trade names and non-compete agreements
Intangible Assets
Gross Carrying Amount	782	782
Accumulated Amortization	(770)	(753)
Net Book Value	12	29
Capitalized software development costs
Intangible Assets
Gross Carrying Amount	7,489	5,900
Accumulated Amortization	(4,032)	(3,207)
Net Book Value	$ 3,457	$ 2,693