Goodwill And Other Intangible Assets Schedule of other intangible assets and related accumulated amortization (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (2,343)	$ (1,579)
Total net intangible assets	12,396	13,165
Global relationships
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	7,400	7,400
Local relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	6,979	7,167
Accumulated amortization	(2,217)	(1,475)
Finite-lived intangible assets, net	4,762	5,692
Local relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Amortization Period	7 years
Local relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization Period	10 years
Tradenames
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	50	50
Accumulated amortization	(50)	(36)
Finite-lived intangible assets, net	0	14
Tradenames | Minimum
Finite-Lived Intangible Assets [Line Items]
Amortization Period	1 year
Tradenames | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization Period	3 years
Existing technology
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	66	66
Accumulated amortization	(66)	(66)
Finite-lived intangible assets, net	0	0
Amortization Period	6 months
Patents
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	244	61
Accumulated amortization	(10)	(2)
Finite-lived intangible assets, net	$ 234	$ 59
Amortization Period	20 years