Annual report pursuant to section 13 and 15(d)

Summary of Goodwill and Intangible Assets (Detail)

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Summary of Goodwill and Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Intangible Assets, balance $ 817  
Intangible Assets, acquisition 4,470  
Intangible Assets, impairment    2,319
Intangible Assets, amortization 530  
Intangible Assets, balance 4,757 817
Goodwill Beginning Balance 3,640 6,609
Acquisition 1,067  
Impairment 1,119 2,969
Goodwill Ending Balance $ 3,588 $ 3,640