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Certain Financial Statement Information (Details 4) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Sep. 30, 2013
Mar. 31, 2013
Sep. 30, 2013
TPack [Member]
Schedule of Goodwill      
Goodwill $ 11,425 $ 13,183 [1]  
Goodwill write off     $ 1,757
[1] Amounts have been derived from the March 31, 2013 audited consolidated financial statements.