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Segment Information (Schedule of Net Sales by Geographical Area) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2016 | Mar. 31, 2015 | Mar. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales from continuing operations | $ 44,568 | $ 38,076 | $ 40,932
Net sales from discontinued operations |  | 1 |
Total net sales | 44,568 | 38,077 | 40,932
UNITED STATES [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales from continuing operations | 8,116 | 9,910 | 11,081
UNITED KINGDOM [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales from continuing operations | 1,007 | 1,023 | 1,721
Europe [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales from continuing operations | 6,403 | 3,501 | 6,197
Segments Geographical Location Other [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales from continuing operations | 2,585 | 2,018 | 2,521
HONG KONG [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales from continuing operations | 7,672 | 5,505 | 3,550
CHINA [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Net sales from continuing operations | $ 18,785 | $ 16,119 | $ 15,862

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