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Bank Borrowing - Narrative (Details) € in Millions |  |  |  | 1 Months Ended | 9 Months Ended |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 16, 2022 USD ($) | Aug. 18, 2021 USD ($) | Aug. 09, 2019 USD ($) | Sep. 30, 2022 USD ($) | Mar. 31, 2025 USD ($) | Mar. 31, 2025 EUR (€) | Dec. 31, 2024 USD ($) | Jun. 30, 2024 USD ($) | Mar. 31, 2024 USD ($) | Mar. 31, 2024 CNY (¥) | Sep. 30, 2023 CNY (¥) | Jun. 30, 2023 EUR (€) | Aug. 11, 2021 USD ($) | Apr. 30, 2021 EUR (€)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease completion buyout option, amount |  |  |  |  |  |  |  |  | $ 1 |  |  |  |  |
Long-term debt |  |  |  |  | $ 17,856,000 |  |  | $ 26,724,000 |  |  |  |  |  |
Jireh Semiconductor Incorporated | Sales-Lease Back Transaction with Jireh Semiconductor Incorporated |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt financing term (in years) |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Implied interest rate |  |  |  | 7.51% | 4.75% |  |  |  |  |  |  |  |  |
Historical cost | € |  |  |  |  |  | € 12.0 |  |  |  |  |  |  |  |
Down payment amount | € |  |  |  |  |  |  |  |  |  |  |  |  |  | € 6.0
Down payment percent |  |  |  | 50.00% |  |  |  |  |  |  |  |  |  | 50.00%
Delivery payment, percent |  |  |  |  |  |  |  |  |  |  |  | 40.00% |  |
Delivery payment, amount | € |  |  |  |  |  |  |  |  |  |  |  | € 4.8 |  |
Purchase price financing, percent |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |
Payments for purchase of optional hardware |  |  |  | $ 200,000 |  |  |  |  |  |  |  |  |  |
Outstanding balance |  |  |  |  | $ 7,200,000 |  |  |  |  |  |  |  |  |
Jireh Semiconductor Incorporated | Sales-Lease Back Transaction with Jireh Semiconductor Incorporated | Manufacturing machinery and equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Collateral amount |  |  |  |  | 12,500,000 |  |  |  |  |  |  |  |  |
Secured Debt | Accounts Receivable Factoring Agreement August 9 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts Receivable Factoring Agreement, Reduction Of Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,000,000 |
Secured Debt | Jireh |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  | $ 45,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, term |  | 5 years 6 months |  |  |  |  |  |  |  |  |  |  |  |
Amount outstanding |  |  |  |  | 22,500,000 |  |  |  |  |  |  |  |  |
Proceeds from lines of credit | $ 45,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Bank Of Communications Limited | Line of Credit | Line Of Credit Maturing December 1 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  | $ 19,300,000 |  |  | ¥ 140,000,000 |  |  |  |
Amount outstanding |  |  |  |  | 0 |  |  |  |  |  |  |  |  |
Long-Term Line of Credit |  |  |  |  | 0 |  |  |  |  |  |  |  |  |
Hongkong And Shanghai Banking Corporation Limited | Secured Debt | Accounts Receivable Factoring Agreement August 9 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 2.01% |  |  |  |  |  |  |  |  |  |  |
Accounts receivable factoring agreement, maximum borrowing capacity, percent of net accounts receivable |  |  | 70.00% |  |  |  |  |  |  |  |  |  |  |
Accounts receivable factoring agreement, maximum borrowing capacity |  |  | $ 30,000,000.0 |  |  |  |  |  |  |  |  |  |  |
Accounts receivable factoring agreement, remaining borrowing capacity |  |  |  |  | 8,000,000.0 |  |  |  |  |  |  |  |  |
Accounts receivable factoring agreement, borrowed amount outstanding |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] |  |  | Secured Overnight Financing Rate (SOFR) [Member] |  |  |  |  |  |  |  |  |  |  |
China Construction Bank | Line of Credit | Line Of Credit Maturing Septmeber 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, maximum borrowing capacity |  |  |  |  |  |  | $ 6,900,000 |  |  |  | ¥ 50,000,000 |  |  |

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