Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
Activity Related to the intangible assets
Balance at beginning of period	$ 23,259		$ 16,890
Acquisition	11,850		7,630
Amortization	(3,810)	[1]	(1,979)	[1]
Balance at end of period	31,299		22,541
Customer Relationships [Member]
Activity Related to the intangible assets
Balance at beginning of period	7,805		6,327
Acquisition	9,450		1,700
Amortization	(2,020)	[1]	(922)	[1]
Balance at end of period	15,235		7,105
Trade Name & Contracts [Member]
Activity Related to the intangible assets
Balance at beginning of period	162		208
Acquisition	1,250		0
Amortization	(330)	[1]	(80)	[1]
Balance at end of period	1,082		128
Software Technology [Member]
Activity Related to the intangible assets
Balance at beginning of period	15,292		10,355
Acquisition	1,150		5,930
Amortization	(1,460)	[1]	(977)	[1]
Balance at end of period	$ 14,982		$ 15,308

[1] Amortization of the customer relationships and the trade name and contracts intangible assets is included in operating expenses and amortization of the software technology intangible assets is included in cost of revenue for software, hardware, and supplies.