Goodwill And Other Intangible Assets Schedule of other intangible assets and related accumulated amortization (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2014	Mar. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (3,837)	$ (3,447)
Total net intangible assets	12,156	12,724
Global Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	7,400	7,400
Local Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	7,710	7,941
Accumulated amortization	(3,590)	(3,251)
Finite-lived intangible assets, net	4,120	4,690
Local Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	6 years
Local Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	10 years
Trade Names [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	75	75
Accumulated amortization	(64)	(58)
Finite-lived intangible assets, net	11	17
Trade Names [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	2 years
Trade Names [Member] | Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	3 years
Existing Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	334	334
Accumulated amortization	(141)	(108)
Finite-lived intangible assets, net	193	226
Amortization Period	4 years
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	471	419
Accumulated amortization	(39)	(29)
Finite-lived intangible assets, net	432	390
Amortization Period	20 years
Order Backlog [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	2	2
Accumulated amortization	(2)	(1)
Finite-lived intangible assets, net	$ 0	$ 1
Amortization Period	1 year