Note 16 Restructuring Charges (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 69	$ 72	$ 106
Release	(73)	0	(30)
Cash Payments	0	0	0
Currency Translation Adjustment	4	(3)	(4)
Ending Balance	0	69	72
Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0	127	379
Release	0	0	0
Cash Payments	0	(127)	(252)
Currency Translation Adjustment	0	0	0
Ending Balance	0	0	127
Total Restructuring on Severance and Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	69	199	485
Release	(73)	0	(30)
Cash Payments	0	(127)	(252)
Currency Translation Adjustment	4	(3)	(4)
Ending Balance	$ 0	$ 69	$ 199