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Targets Combined Operating Results (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Business Acquisition [Line Items] |  |
Revenue | $ 6,025 | $ 7,230
Gross profit | 3,414 | 4,357
Operating expenses | 15,794 | 21,328
Income from operations | (12,380) | (16,971)
Non-operating expenses, net | 1,691 | 13,626
Provision for income tax | (90) | 110
Net income | (14,161) | (30,707)
Targets |  |
Business Acquisition [Line Items] |  |
Revenue | 3,031 |
Cost of goods sold | 1,118 |
Gross profit | 1,913 |
Operating expenses | 1,255 |
Income from operations | 658 |
Non-operating expenses, net | 10 |
Provision for income tax | 34 |
Net income | $ 614 |

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