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Segment Information - Schedule of Asset Information for Reportable Segments (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Mar. 31, 2024
Segment: |  |  |
Identifiable assets | $ 129,964 | $ 120,208 | $ 111,076
Capital expenditure | 481 | 332 | 381
Depreciation and amortization | 1,484 | 1,519 | 1,523
Injection Molded Plastic Parts [Member] |  |  |
Segment: |  |  |
Identifiable assets | 75,244 | 72,144 | 62,760
Capital expenditure | 131 | 163 | 26
Depreciation and amortization | 969 | 1,009 | 1,048
Electronic Products [Member] |  |  |
Segment: |  |  |
Identifiable assets | 54,720 | 48,064 | 48,316
Capital expenditure | 350 | 169 | 355
Depreciation and amortization | $ 515 | $ 510 | $ 475

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