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Accounts Payable and Accrued Expenses - Schedule of Accounts Payable and Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Mar. 31, 2014
--- | --- | ---
Accounts payable | $ 2,554 | $ 1,749
Accrued inventories in-transit | 1,509 | 212
Accrued miscellaneous expenses | 4,801 | 6,076
Accrued outside services | 3,272 | 3,716
Accrued subcontractor program costs | 288 | 290
Accrued compensation | 3,155 | 5,939
Income taxes payable | 200 | 173
Accrued adverse purchase commitments | 403 | 402
Accrued warranty | 2,855 | 3,207
Total | $ 19,037 | $ 21,764

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