Supplementary Financial Information - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Property, Plant and Equipment [Line Items]
Depreciation of property and equipment	$ 820	$ 734	$ 770
Amortization of intangible assets	3,240	2,036	1,255
Amortization recorded to cost of revenues	600	500	500
Amortization of intangible assets	$ 2,673	1,504	757
Useful life (in years)	4 years 2 months 12 days
Net capitalized software development costs	$ 2,700	2,800
Customer contracts / relationships
Property, Plant and Equipment [Line Items]
Useful life (in years)	6 years
Trade names and non-compete agreements
Property, Plant and Equipment [Line Items]
Useful life (in years)	3 years
Oracle ERP system design and implementation
Property, Plant and Equipment [Line Items]
Useful life (in years)	10 years
Net capitalized software development costs	$ 1,400	1,700
Cost of revenues
Property, Plant and Equipment [Line Items]
Depreciation of property and equipment	200	200	300
Operating expenses
Property, Plant and Equipment [Line Items]
Depreciation of property and equipment	$ 600	$ 500	$ 500