Supplemental Financial Information - Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Mar. 31, 2021
Intangible Assets
Gross Carrying Amount	$ 20,858	$ 20,495
Accumulated Amortization	(7,816)	(6,198)
Net Book Value	13,042	14,297
Technology
Intangible Assets
Gross Carrying Amount	4,986	4,986
Accumulated Amortization	(2,057)	(1,594)
Net Book Value	2,929	3,392
Customer contracts / relationships
Intangible Assets
Gross Carrying Amount	9,550	9,550
Accumulated Amortization	(2,253)	(1,547)
Net Book Value	7,297	8,003
Trade names and non-compete agreements
Intangible Assets
Gross Carrying Amount	782	782
Accumulated Amortization	(718)	(683)
Net Book Value	64	99
Capitalized software development costs
Intangible Assets
Gross Carrying Amount	5,540	5,177
Accumulated Amortization	(2,788)	(2,374)
Net Book Value	$ 2,752	$ 2,803