Supplementary Financial Information - Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021
Intangible Assets
Gross Carrying Amount	$ 21,218	$ 20,495
Accumulated Amortization	(9,438)	(6,198)
Net Book Value	11,780	14,297
Technology
Intangible Assets
Gross Carrying Amount	4,986	4,986
Accumulated Amortization	(2,519)	(1,594)
Net Book Value	2,467	3,392
Customer contracts / relationships
Intangible Assets
Gross Carrying Amount	9,550	9,550
Accumulated Amortization	(2,959)	(1,547)
Net Book Value	6,591	8,003
Trade names and non-compete agreements
Intangible Assets
Gross Carrying Amount	782	782
Accumulated Amortization	(753)	(683)
Net Book Value	29	99
Capitalized software development costs
Intangible Assets
Gross Carrying Amount	5,900	5,177
Accumulated Amortization	(3,207)	(2,374)
Net Book Value	$ 2,693	$ 2,803