Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended
Jun. 30, 2023	Jun. 30, 2022
Related Party Transaction [Line Items]
Revenue, net	$ 5,883	$ 5,156
Cost of goods sold	3,795	4,050
Research and development expense	2,869	1,740
General and administrative	4,516	3,317
Interest expense	8	182
Related Party
Related Party Transaction [Line Items]
Revenue, net	1,600	1,700
Related Party \| GaNovation
Related Party Transaction [Line Items]
Research and development expense	32	99
Related Party \| GaNovation \| Product sale
Related Party Transaction [Line Items]
Revenue, net	266	378
Related Party \| GaNovation \| Service fees
Related Party Transaction [Line Items]
Revenue, net	67	0
Related Party \| GaNovation \| Inventory purchase
Related Party Transaction [Line Items]
Cost of goods sold	13	426
Related Party \| GaNovation \| Cost of goods sold
Related Party Transaction [Line Items]
Cost of goods sold	1,258	841
Related Party \| GaNovation \| Consumption tax
Related Party Transaction [Line Items]
General and administrative	60	142
Related Party \| GaNovation \| Employee and related benefits
Related Party Transaction [Line Items]
General and administrative	32	46
Related Party \| Yaskawa
Related Party Transaction [Line Items]
Revenue, net	221	547
Related Party \| Nexperia
Related Party Transaction [Line Items]
Interest expense	8	182
Related Party \| Nexperia \| Product sale
Related Party Transaction [Line Items]
Revenue, net	1,088	779
Related Party \| Nexperia \| License and service fee income
Related Party Transaction [Line Items]
Revenue, net	0	32
Related Party \| Nexperia \| Reimbursements in license maintenance fee
Related Party Transaction [Line Items]
Revenue, net	$ 25	$ 38

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

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