Annual report pursuant to Section 13 and 15(d)

The Company and Its Accounting Policies - Accompanying Consolidated Balance Sheets (Detail)

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The Company and Its Accounting Policies - Accompanying Consolidated Balance Sheets (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Mar. 31, 2013
Accounting Policies [Abstract]    
Unbilled revenue $ 7,830 $ 13,113
Progress payments reducing inventory (Note 3) (5,080) (5,736)
Customer deposits (8,012) (6,919)
Net (over) under billings (5,262)  
Net (over) under billings   $ 458