Leases - Supplemental Cash Flow Information and Non-Cash Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
Operating cash flow information:
Cash payments included in the measurement of lease liabilities	$ 1,502	$ 1,540	$ 1,500
Non-cash activity:
Right-of-use assets obtained in exchange for new operating lease liabilities	$ 417	$ 110	$ 4,520
Weighted-average remaining lease term - operating leases (months)	2 years 29 days	3 years 2 months 1 day	3 years 9 months 29 days
Weighted-average discount rate - operating leases	8.00%	7.30%	7.20%