XML 110 R74.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stockholders' Equity (Summary Of Employee And Non-Employee Stock Options Activity) (Details) (USD $)
 12 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2010
Stockholders' Equity [Abstract]      
Options/Shares, Outstanding at March 31, 2011 2,004,725    
Options/Shares, Granted at fair value 835,450    
Options/Shares, Exercised (2,700)    
Options/Shares, Cancelled/Forfeited (547,059)    
Options/Shares, Outstanding at March 31, 2012 2,290,416    
Options/Shares, Exerciseable at March 31, 2012 1,122,320    
Options/Shares, Fully vested and expected to vest at March 31, 2012 2,198,771    
Weighted-Average Exercise Price, Outstanding at March 31, 2011 $ 22.29    
Weighted-Average Exercise Price, Granted at fair value $ 9.76    
Weighted-Average Exercise Price, Exercised $ 8.91    
Weighted-Average Exercise Price, Cancelled/Forfeited $ 22.15    
Weighted-Average Exercise Price, Outstanding at March 31, 2012 $ 17.77    
Weighted-Average Exercise Price, Exerciseable at March 31, 2012 $ 18.05    
Weighted-Average Exercise Price, Fully vested and expected to vest at March 31, 2012 $ 17.76    
Weighted-Average Remaining Contractual Term, Outstanding at March 31, 2012 6.9    
Weighted-Average Remaining Contractual Term, Exerciseable at March 31, 2012 5.2    
Weighted-Average Remaining Contractual Term, Fully vested and expected to vest at March 31, 2012 6.8    
Aggregate Intrinsic Value, Outstanding at March 31, 2012 $ 13,900    
Aggregate Intrinsic Value, Exerciseable at March 31, 2012 8,400 8,700,000 16,400,000
Aggregate Intrinsic Value, Fully vested and expected to vest at March 31, 2012 $ 13,200