Note 2 Summary of Significant Accounting Policies (Excess and Obsolete Inventory Reserve) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Excess and Obsolete Inventory Reserve [Roll Forward]
Beninning Balance	$ 25,289	$ 28,138	$ 29,436
Utilization or Sale	(1,579)	(2,242)	(2,543)
Scrap	(3,422)	(3,662)	(2,313)
Additional Accrual	3,503	3,385	3,921
Foreign Currency Translation Adjustments	513	(330)	(363)
Ending Balance	$ 24,304	$ 25,289	$ 28,138