Goodwill And Other Intangible Assets Amortization expense and currency translation (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Currency translation	$ 12	$ (57)
Finite Lived Intangible Assets Accumulated Amortization And Translation Adjustments	634	616
Local Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	604	626
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	13	13
Existing Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	0	33
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 5	$ 1