Note 13 Computation of Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]
Net Income	$ 5,747	$ 3,383	$ 9,322	$ 5,362
Weighted Average Shares - Basic	31,499	31,127	31,439	31,037
Weighted Average Shares - Diluted	32,235	31,849	32,142	31,737
Net Income Per Share - Basic	$ 0.18	$ 0.11	$ 0.30	$ 0.17
Net Income Per Share - Diluted	$ 0.18	$ 0.11	$ 0.29	$ 0.17