Note 12 Accumulated Other Comprehensive Income (Loss) (AOCI Change) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	$ (8,223)		$ 5,029
Foreign Currency [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(2,393)	11,048	10,535	2,982
Other Comprehensive Income (Loss) before Reclassifications	(12,928)	8,066
Net Current Period Other Comprehensive Income (Loss)	(12,928)	8,066
Unrealized (Gains) Losses on Securities [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	1	(221)	325	60
Other Comprehensive Income (Loss) before Reclassifications	(919)	(223)
Net Losses (Gains) Reclassified from Accumulated Other Comprehensive Income (Loss)	595	(58)
Net Current Period Other Comprehensive Income (Loss)	(324)	(281)
Defined Benefit Pension Plans [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(5,831)	(6,135)	(5,831)	(6,135)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Accumulated Other Comprehensive Income (Loss), Net of Tax	(8,223)	4,692	5,029	(3,093)
Other Comprehensive Income (Loss) before Reclassifications	(13,847)	7,843
Net Losses (Gains) Reclassified from Accumulated Other Comprehensive Income (Loss)	595	(58)
Net Current Period Other Comprehensive Income (Loss)	$ (13,252)	$ 7,785