Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Operating loss carryforwards
Federal research credits	$ 1,808	$ 2,282
Valuation allowance on deferred tax assets	14,552	12,349
Unrecognized tax benefits	1,198	1,079	$ 952	$ 687
Unrecognized tax benefits netted against certain noncurrent deferred tax assets	1,100	1,000
Unrecognized tax benefits that, if recognized, would affect effective tax rate	1,100	$ 1,000
2031
Operating loss carryforwards
Net operating loss carryforwards	9,900
Federal
Operating loss carryforwards
Federal research credits	3,300
Net operating loss carryforwards	16,000
State
Operating loss carryforwards
Tax credit carryforwards	$ 1,500