Goodwill And Other Intangible Assets Schedule of other intangible assets and related accumulated amortization (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2012	Mar. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization	$ (2,213)	$ (1,579)
Total net intangible assets	12,647	13,165
Global Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	7,400	7,400
Local Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	7,170	7,167
Accumulated amortization	(2,090)	(1,475)
Finite-lived intangible assets, net	5,080	5,692
Local Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	7 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	50	50
Accumulated amortization	(49)	(36)
Finite-lived intangible assets, net	1	14
Trade Names [Member] | Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization Period	1 year
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	66	66
Accumulated amortization	(66)	(66)
Finite-lived intangible assets, net	0	0
Amortization Period	6 months
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	174	61
Accumulated amortization	(8)	(2)
Finite-lived intangible assets, net	$ 166	$ 59
Amortization Period	20 years