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Significant Customer and Other Information (Details) | 12 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023 | Mar. 31, 2022
Net Sales [Member] | Customer Concentration Risk [Member] | Customer A [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 35.00% | 37.00% | 38.00%
Net Sales [Member] | Customer Concentration Risk [Member] | Customer B [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 21.00% | 23.00% | 18.00%
Net Sales [Member] | Customer Concentration Risk [Member] | Customer C [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 27.00% | 24.00% | 29.00%
Net Sales [Member] | Customer Concentration Risk [Member] | Customer D [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 4.00% | 4.00% | 2.00%
Net Sales [Member] | Product Concentration Risk [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 100.00% | 100.00% | 100.00%
Net Sales [Member] | Product Concentration Risk [Member] | Rotating Electrical Products [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 66.00% | 67.00% | 69.00%
Net Sales [Member] | Product Concentration Risk [Member] | Brake-Related Products [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 20.00% | 18.00% | 15.00%
Net Sales [Member] | Product Concentration Risk [Member] | Wheel Hub Products [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 10.00% | 11.00% | 13.00%
Net Sales [Member] | Product Concentration Risk [Member] | Other Products [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 4.00% | 4.00% | 3.00%
Accounts Receivable - Trade [Member] | Customer Concentration Risk [Member] | Customer A [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 35.00% | 33.00% |
Accounts Receivable - Trade [Member] | Customer Concentration Risk [Member] | Customer B [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 25.00% | 18.00% |
Accounts Receivable - Trade [Member] | Customer Concentration Risk [Member] | Customer C [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 13.00% | 21.00% |
Accounts Receivable - Trade [Member] | Customer Concentration Risk [Member] | Customer D [Member] |  |  |
Concentration Risk [Abstract] |  |  |
Concentration risk percentage | 6.00% | 12.00% |

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