Annual report pursuant to Section 13 and 15(d)

The Company and Its Accounting Policies - Summary of Costs and Estimated Earnings on Contracts (Detail)

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The Company and Its Accounting Policies - Summary of Costs and Estimated Earnings on Contracts (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Mar. 31, 2013
Accounting Policies [Abstract]    
Costs incurred since inception on contracts in progress $ 42,019 $ 37,632
Estimated earnings since inception on contracts in progress 10,208 12,311
Costs and estimated earnings 52,227 49,943
Less billings to date 57,489 49,485
Net (over) under billings (5,262)  
Net (over) under billings   $ 458