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Significant Customer and Other Information (Tables) | 12 Months Ended
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Mar. 31, 2017
Significant Customer and Other Information [Abstract] |
Schedule of concentrations of risk | The Company’s largest customers accounted for the following total percentage of net sales:
|  | Years Ended March 31, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Customer A |  |  | 44 | % |  |  | 48 | % |  |  | 56 | %
Customer B |  |  | 20 | % |  |  | 18 | % |  |  | 19 | %
Customer C |  |  | 19 | % |  |  | 21 | % |  |  | 11 | %
Customer D |  |  | 4 | % |  |  | 3 | % |  |  | 3 | %
The Company’s largest customers accounted for the following total percentage of accounts receivable — trade at March 31:
|  | 2017 |  |  | 2016 |
Customer A |  |  | 33 | % |  |  | 37 | %
Customer B |  |  | 18 | % |  |  | 17 | %
Customer C |  |  | 12 | % |  |  | 15 | %
Customer D |  |  | 16 | % |  |  | 9 | %
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, |
|  | 2017 |  |  | 2016 |  |  | 2015 |
Rotating electrical products |  |  | 78 | % |  |  | 78 | % |  |  | 82 | %
Wheel hub products |  |  | 19 | % |  |  | 20 | % |  |  | 17 | %
Brake master cylinders products |  |  | 3 | % |  |  | 2 | % |  |  | 1 | %
|  |  | 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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6351-108592 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13537-108611 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13531-108611 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6442-108592 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6327-108592 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -SubTopic 10 -Section 50 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=64851502&loc=d3e6404-108592 + Details
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