Note 11 Pension Plans (Net Periodic Pension Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service Cost	$ 27	$ 25	$ 55	$ 49
Interest Cost on Projected Benefit Obligation	461	468	919	939
Expected Return on Plan Assets	(410)	(379)	(818)	(758)
Recognized Actuarial Loss	58	42	116	84
Net Periodic Pension Expense	$ 136	$ 156	$ 272	$ 314