Note 12 Employee Equity Incentive Plans (Fair Value and Assumptions) (Details) (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013		Dec. 31, 2012
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award Fair Value Assumptions and Methodology [Line Items]
Weighted Average Estimated Fair Value of Grant Per Share			$ 4.95	[1]	$ 5.21	[1]
Risk-free Interest Rate			1.90%	[1]	1.00%	[1]
Expected Term in Years			6 years 1 month 6 days	[1]	6 years 3 months 18 days	[1]
Volatility			55.50%	[1]	55.40%	[1]
Dividend Yield			0.00%	[1]	0.00%	[1]
Employee Stock Purchase Plan 1999 [Member]
Share-based Compensation Arrangement by Share-based Payment Award Fair Value Assumptions and Methodology [Line Items]
Weighted Average Estimated Fair Value of Grant Per Share	$ 2.94	$ 2.81	$ 2.75		$ 3.22
Risk-free Interest Rate	0.10%	0.10%	0.10%		0.20%
Expected Term in Years	0 years 6 months 0 days	0 years 6 months 0 days	0 years 6 months 0 days		0 years 6 months 0 days
Volatility	35.00%	46.00%	37.00%		46.40%
Dividend Yield	0.00%	0.00%	0.00%		0.00%

[1] No Stock options were granted during the quarters ended December 31, 2013 and 2012.