Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Operating activities
Net income (loss)	$ 6,478	$ (21,001)	$ (34,067)
Adjustments to reconcile net loss to net cash provided by operating activities:
Impairments	0	0	23,740
Loss (gain) on disposal of property & equipment	195	44	(5)
Depreciation of fixed assets	2,210	2,832	2,574
Amortization of internal-use software and intangibles	1,654	1,959	2,541
Amortization of developed technology	0	0	12,561
Deferred income taxes	(925)	(959)	(356)
Share-based compensation	14,549	40,093	5,205
Changes in operating assets and liabilities:
Accounts receivable	2,551	10,363	(8,974)
Contract assets	684	(228)	794
Inventories	(5,764)	2,746	(1,830)
Prepaid expense and other current assets	(484)	(201)	1,545
Accounts payable	3,417	(7,016)	8,585
Contract liabilities	4,902	(3,971)	3,563
Accrued liabilities	146	1,187	(4,227)
Income taxes payable	50	340	(153)
Other changes, net	(1,188)	2,219	(921)
Net cash provided by operating activities	28,475	28,407	10,575
Investing activities
Capital expenditures	(1,197)	(1,389)	(3,420)
Cash paid for business combinations, net of cash acquired	(24,455)	0	0
Additional (investments in) corporate-owned life insurance policies	(27)	(2)	(27)
Net cash used in investing activities	(25,679)	(1,391)	(3,447)
Preferred stock issuance proceeds, net of issuance costs	0	33,969	0
Payment of preferred stock dividends	(1,836)	(1,117)	0
Repurchase of common shares to satisfy employee tax withholding	(3,046)	(7,512)	(1,092)
Principal payments under long-term obligations	(19)	(24)	(24)
Net cash (used in) provided by financing activities	(4,901)	25,316	(1,116)
Effect of exchange rate changes on cash	(104)	195	(130)
Net (decrease) increase in cash and cash equivalents	(2,209)	52,527	5,882
Cash and cash equivalents at beginning of period	99,180	46,653	40,771
Cash and cash equivalents at end of period	$ 96,971	$ 99,180	$ 46,653