Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Details)

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Financial Instruments (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Mar. 31, 2012
Financial Instruments [Abstract]      
Foreign currency transaction gains and (losses) $ 5 $ (2)  
Number of open foreign exchange contracts 0    
Class of Warrant or Right [Line Items]      
Warrants outstanding (in shares) 285,454    
Non cash gains on warrants 1 12  
Note receivable - CollabRx $ 300   $ 0
Interest rate on promissory note receivable (in hundredths) 0.28%    
Liability Warrants Having Exercise Price 30 [Member]
     
Class of Warrant or Right [Line Items]      
Warrants outstanding (in shares) 8,348    
Exercise price of warrants outstanding (in dollars per share) $ 30.00    
Liability Warrants Having Exercise Price 72 [Member]
     
Class of Warrant or Right [Line Items]      
Warrants outstanding (in shares) 477    
Exercise price of warrants outstanding (in dollars per share) $ 72.00