Balance Sheet Components - Schedule of Accounts Payable and Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Mar. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts payable	$ 4,232	$ 2,781
Manufacturing production costs	1,017	506
Legal fees	842	596
Audit fees	50	318
Consulting fees	209	256
Royalty fees	221	76
Deposit liability	0	2,950
Equipment sale buyback liability	2,100	0
Other	635	412
Accrued expenses	5,074	5,114
Total Accounts payable and accrued expenses	$ 9,306	$ 7,895