Goodwill And Other Intangible Assets Amortization expense and currency translation (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Currency translation	$ 102	$ 19
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	340	236
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	0	3
Existing Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	17	17
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	7	5
Order Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 0	$ 1