Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Related Party Transaction
Revenue, net	$ 5,010	$ 3,670	$ 10,893	$ 8,826
Cost of goods sold	3,836	3,232	7,631	7,282
Research and development	3,022	1,830	5,891	3,570
General and administrative	2,942	3,044	7,458	6,361
Interest expense	0	184	8	366
Related Party
Related Party Transaction
Revenue, net	1,467	1,428	3,042	3,164
Related Party \| GaNovation
Related Party Transaction
Research and development	53	90	85	188
Related Party \| GaNovation \| Product sale
Related Party Transaction
Revenue, net	313	1,094	579	1,472
Related Party \| GaNovation \| Service fees
Related Party Transaction
Revenue, net	64	0	131	0
Related Party \| GaNovation \| Inventory purchase
Related Party Transaction
Cost of goods sold	100	69	113	249
Related Party \| GaNovation \| Fixed asset purchase
Related Party Transaction
Cost of goods sold	60	0	68	0
Related Party \| GaNovation \| Cost of goods sold
Related Party Transaction
Cost of goods sold	1,194	867	2,452	1,708
Related Party \| GaNovation \| Consumption tax
Related Party Transaction
General and administrative	82	77	142	219
Related Party \| GaNovation \| Employee and related benefits
Related Party Transaction
General and administrative	30	43	62	90
Related Party \| Yaskawa
Related Party Transaction
Revenue, net	223	223	443	770
Related Party \| Nexperia
Related Party Transaction
Interest expense	0	184	8	366
Related Party \| Nexperia \| Product sale
Related Party Transaction
Revenue, net	931	77	2,019	856
Related Party \| Nexperia \| License and service fee income
Related Party Transaction
Revenue, net	0	35	0	66
Related Party \| Nexperia \| Reimbursements in license maintenance fee
Related Party Transaction
Revenue, net	$ 25	$ 38	$ 50	$ 75

The aggregate cost of goods produced and sold and services rendered during the reporting period.

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