Goodwill And Other Intangible Assets Amortization expense and currency translation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Currency translation	$ (430)	$ 152	$ (59)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	1,077	883	801
Tradenames
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	17	8	14
Existing technology
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	67	42	0
Patents
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	24	18	8
Order backlog
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 1	$ 1	$ 0