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Property and Equipment - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Continuing Operations
   
Property Plant And Equipment [Line Items]    
Depreciation expense $ 48 $ 39
Discontinued Operations
   
Property Plant And Equipment [Line Items]    
Depreciation expense $ 0 $ 24