Annual report pursuant to section 13 and 15(d)

Reconciliation of Changes to Carrying Amount of Goodwill (Detail)

v2.4.0.8
Reconciliation of Changes to Carrying Amount of Goodwill (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Goodwill [Line Items]    
Goodwill Beginning Balance $ 3,640 $ 6,609
Acquisition 1,067  
Goodwill Impairment (1,119) (2,969)
Goodwill Ending Balance $ 3,588 $ 3,640