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v3.19.3

Significant Customer and Other Information (Details) | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Mar. 31, 2019
Net Sales [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 100.00% | 100.00% | 100.00% | 100.00% |
Net Sales [Member] | Customer A [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 41.00% | 39.00% | 40.00% | 38.00% |
Net Sales [Member] | Customer B [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 20.00% | 26.00% | 21.00% | 24.00% |
Net Sales [Member] | Customer C [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 23.00% | 20.00% | 22.00% | 22.00% |
Net Sales [Member] | Rotating Electrical Products [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 77.00% | 80.00% | 76.00% | 79.00% |
Net Sales [Member] | Wheel Hub Products [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 15.00% | 14.00% | 16.00% | 16.00% |
Net Sales [Member] | Brake Caliper Products [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 3.00% | 0.00% | 2.00% | 0.00% |
Net Sales [Member] | Brake Master Cylinders Products [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 1.00% | 2.00% | 2.00% | 2.00% |
Net Sales [Member] | Other Products [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage | 4.00% | 4.00% | 4.00% | 3.00% |
Accounts Receivable - Trade [Member] | Customer A [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage |  |  | 33.00% |  | 34.00%
Accounts Receivable - Trade [Member] | Customer B [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage |  |  | 15.00% |  | 18.00%
Accounts Receivable - Trade [Member] | Customer C [Member] |  |  |  |  |
Concentration Risk [Abstract] |  |  |  |  |
Concentration risk percentage |  |  | 23.00% |  | 16.00%

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