Note 11 Employee Equity Incentive Plans (Option Activity) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Sep. 30, 2014		Mar. 31, 2014
Options Outstanding Intrinsic Value [Abstract]
Aggregate Intrinsic Value, Exercised	$ 1,043	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Number of Shares, Exercisable	3,863,385		3,865,885
Weighted Average Exercise Price Per Share, Exercisable	$ 10.12		$ 10.00
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares Outstanding, Beginning Balance	5,201,635
Options Granted	249,000
Options Exercised	(259,750)
Options Cancelled	(75,250)
Options Expired	(52,500)
Number of Shares Outstanding, Ending Balance	5,063,135
Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Exercise Price Per Share [Abstract]
Options Outstanding	$ 10.36		$ 10.22
Options Granted	$ 11.83
Options Exercised	$ 8.63
Options Cancelled	$ 11.37
Options Expired	$ 10.74

[1] Represents the difference between the exercise price and the value of our common stock at the time of exercise.