Basis of Presentation (Schedule Of Option Activity) (Details) (USD $)	6 Months Ended
	Sep. 30, 2014
Basis Of Presentation Schedule Of Option Activity Details
Balance at March 31, 2014	6,002,382
Granted - options	106,684
Exercised	(483,184)
Cancelled/forfeited	(278,098)
Balance at September 30, 2014	5,347,784
Shares available for grant at March 31, 2014	1,613,943
Change in options available for grant	6,800,000
Granted options, shares available for grant	(106,684)
Stock purchase rights/restricted stock unit (1)	(279,924)	[1]
Exercised	0
Cancelled/forfeited shares available for grant	278,098
Cancelled/forfeited - restricted stock units	93,944
Shares available for grant, at September 30, 2014	8,399,377
Weighted-average exercise price of options outstanding, at March 31, 2014	$ 4.14
Weighted-average exercise price of options granted during period	$ 7.56
Weighted-average exercise price of stock purchases rights during period	$ 0
Weighted-average exercise price of options exercised during the period	$ 1.55
Weighted-average exercise price of options forfeited, cancelled or expired during the period	$ 5.11
Weighted-average exercise price of canceled / forfeited - restricted stock unit during period	$ 5.67
Weighted-average exercise price of options outstanding at September 30, 2014	$ 4.16

[1] The reduction to shares available for grant includes awards granted of 279,924 shares