Note 12 Computation of Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share [Abstract]
Net Income (Loss)	$ 6,046	$ 7,648	$ 30,306
Weighted Average Shares - Basic	31,146	31,025	31,344
Weighted Average Shares - Diluted	31,916	31,695	32,496
Net Income Per Share - Basic	$ 0.19	$ 0.25	$ 0.97
Net Income Per Share - Diluted	$ 0.19	$ 0.24	$ 0.93