Note 9 Restructuring Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2012
Restructuring Reserve [Roll Forward]
Balance at March 31, 2012	$ 199
Charges	0
Cash Payments	(64)
Currency Translation Adjustment	(4)
Balance at June 30, 2012	131
Fiscal 2010 Severance and Related Benefit [Member]
Restructuring Reserve [Roll Forward]
Balance at March 31, 2012	72
Charges	0
Cash Payments	0
Currency Translation Adjustment	(4)
Balance at June 30, 2012	68
Fiscal 2011 Lease Commitment Accrual [Member]
Restructuring Reserve [Roll Forward]
Balance at March 31, 2012	127
Charges	0
Cash Payments	(64)
Currency Translation Adjustment	0
Balance at June 30, 2012	$ 63