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Significant Customer and Other Information (Tables) | 6 Months Ended
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Sep. 30, 2025
Significant Customer and Other Information [Abstract] |
Concentrations of Risk | Significant Customer Concentrations The largest customers accounted for the following percentage of consolidated net sales:
|  |  | Three Months Ended September 30, |  |  |  | Six Months Ended September 30, |
|  |  | 2025 |  |  |  | 2024 |  |  |  | 2025 |  |  |  | 2024 |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Customer A |  |  | 38 | % |  |  | 34 | % |  |  | 38 | % |  |  | 37 | %
Customer B |  |  | 28 | % |  |  | 21 | % |  |  | 26 | % |  |  | 20 | %
Customer C |  |  | 21 | % |  |  | 31 | % |  |  | 21 | % |  |  | 29 | %
|  |  | September 30, 2025 |  |  |  | March 31, 2025 |
Accounts receivable - trade |  |  |  |  |  |  |  |
Customer A |  |  | 36 | % |  |  | 41 | %
Customer B |  |  | 34 | % |  |  | 26 | %
Customer C |  |  | 7 | % |  |  | 7 | %
|  |  | Three Months Ended September 30, |  |  |  | Six Months Ended September 30, |
|  |  | 2025 |  |  | 2024 |  |  |  | 2025 |  |  |  | 2024 |
Product line |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rotating electrical products |  |  | 69 | % |  |  | 68 | % |  |  | 68 | % |  |  | 67 | %
Brake-related products |  |  | 21 | % |  |  | 21 | % |  |  | 22 | % |  |  | 22 | %
Wheel hub products |  |  | 6 | % |  |  | 7 | % |  |  | 6 | % |  |  | 7 | %
Other products |  |  | 4 | % |  |  | 4 | % |  |  | 4 | % |  |  | 4 | %
|  |  | 100 | % |  |  | 100 | % |  |  | 100 | % |  |  | 100 | %

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- Definition Tabular disclosure of the nature of a concentration, a benchmark to which it is compared, and the percentage that the risk is to the benchmark. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 18 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-18 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 275 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 20 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482861/275-10-50-20 + Details
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