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Certain Financial Statement Information (Details Textual) (USD $)
In Thousands, except Share data in Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Jun. 30, 2014
Mar. 31, 2014
Certain Financial Statement Information [Line Items]    
Gross unrealized gain $ 3,802 $ 3,455
Options and Restricted Stock Units [Member]
   
Certain Financial Statement Information [Line Items]    
Antidilutive securities excluded from net loss per share computation 1.2