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Segment Information (Contributions of Profitability Information For Reportable Segments) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2014
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales | $ 44,568 | $ 38,077 | $ 40,932
Loss before income taxes | (4,776) | (2,601) | (6,866)
Metallic Parts [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales |  | 1 |
Loss before income taxes |  | (348) | (411)
Electronic Products [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales | 24,847 | 18,409 | 21,684
Loss before income taxes | (2,105) | (1,912) | (1,938)
Segment Total [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales | 45,028 | 38,616 | 41,602
Injection Molded Plastic Parts [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales | 20,181 | 20,206 | 19,918
Loss before income taxes | (2,671) | (341) | (4,517)
Intersegment Eliminations [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales | (460) | (539) | 670
Intersegment Eliminations [Member] | Metallic Parts [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales |  |  |
Intersegment Eliminations [Member] | Electronic Products [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales | (104) | (105) | 90
Intersegment Eliminations [Member] | Injection Molded Plastic Parts [Member] |  |  |
Segment Reporting, Revenue Reconciling Item [Line Items] |  |  |
Total net sales | $ (356) | $ (434) | $ 580

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- Definition This element represents the income or loss from continuing and discontinued operations attributable to the economic entity which may also be defined as revenue less expenses from continuing and discontinued operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest. + References No definition available. + Details
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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts, including revenue from both continuing and discontinued operations. + References No definition available. + Details
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