Goodwill And Other Intangible Assets Amortization expense and currency translation (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Currency translation	$ 70	$ (131)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	682	469
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	0	6
Existing Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	36	34
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	15	11
Order Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 0	$ 1