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Significant Customer and Other Information (Tables) | 12 Months Ended
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Mar. 31, 2023
Significant Customer and Other Information [Abstract] |
Concentrations of Risk | Significant Customer Concentrations While the Company continually seeks to diversify its customer base, it currently derives, and has historically derived, a substantial portion of its sales from a small number of large customers. Any meaningful reduction in the level of sales to any of these customers, deterioration of the financial condition of any of these customers or the loss of any of these customers could have a materially adverse impact on our business, results of operations, and financial condition. The Company’s largest customers accounted for the following total percentage of net sales:
|  | Years Ended March 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Customer A |  |  | 37 | % |  |  | 38 | % |  |  | 42 | %
Customer B |  |  | 23 | % |  |  | 18 | % |  |  | 22 | %
Customer C |  |  | 24 | % |  |  | 29 | % |  |  | 23 | %
Customer D |  |  | 4 | % |  |  | 2 | % |  |  | 2 | %
Revenues for Customers A through C were derived from the Hard Parts segment and Test Solutions and Diagnostic Equipment segment. Revenues for Customer D were derived from the Hard Parts segment. The Company’s largest customers accounted for the following total percentage of accounts receivable — trade:
|  | March 31, 2023 |  |  | March 31, 2022 |
Customer A |  |  | 33 | % |  |  | 42 | %
Customer B |  |  | 18 | % |  |  | 21 | %
Customer C |  |  | 21 | % |  |  | 9 | %
Customer D |  |  | 12 | % |  |  | 5 | %
Geographic and Product Information The Company’s products are predominantly sold in the U.S. and accounted for the following total percentage of net sales:
|  | Years Ended March 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Rotating electrical products |  |  | 67 | % |  |  | 69 | % |  |  | 73 | %
Wheel hub products |  |  | 11 | % |  |  | 13 | % |  |  | 15 | %
Brake-related products |  |  | 18 | % |  |  | 15 | % |  |  | 10 | %
Other products |  |  | 4 | % |  |  | 3 | % |  |  | 2 | %
|  |  | 100 | % |  |  | 100 | % |  |  | 100 | %

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