Basis of Presentation (Schedule Of Option Activity) (Details) (USD $)	9 Months Ended
	Dec. 31, 2014
Basis Of Presentation Schedule Of Option Activity Details
Balance at March 31, 2014	6,002,382
Granted - options	992,764
Exercised	(1,041,982)
Cancelled/forfeited	(392,076)
Balance at December 31, 2014	5,561,088
Shares available for grant at March 31, 2014	1,613,943
Additional shares authorized for grant	8,000,000
Granted options, shares available for grant (1)	(1,295,906)	[1]
Stock purchase rights/restricted stock unit (2)	(1,880,732)	[2]
Exercised	0
Cancelled/forfeited shares available for grant	392,076
Cancelled/forfeited - restricted stock units	142,910
Shares available for grant, at December 31, 2014	6,972,291
Weighted-average exercise price of options outstanding, at March 31, 2014	$ 4.14
Weighted-average exercise price of options granted during period	$ 7.09
Weighted-average exercise price of stock purchases rights during period	$ 0
Weighted-average exercise price of options exercised during the period	$ 1.60
Weighted-average exercise price of options forfeited, cancelled or expired during the period	$ 5.74
Weighted-average exercise price of canceled / forfeited - restricted stock unit during period	$ 0
Weighted-average exercise price of options outstanding at December 31, 2014	$ 5.03

[1] (1) As reflected in the preceding table, for each share awarded as a stock option under the 2012 Amended and Restated Equity Incentive Plan, an equivalent of 1.5 shares were deducted from the shares available for grant balance.

[2] (2) The reduction to shares available for grant includes awards granted of 1,880,732 shares