Business Combinations (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012 IntraNexus Acquisition [Member]	Apr. 29, 2011 IntraNexus Acquisition [Member]	Mar. 31, 2012 CQI Solutions Acquisition [Member]	Jul. 26, 2011 CQI Solutions Acquisition [Member]	Mar. 31, 2012 ViaTrack Acquisition [Member]	Nov. 14, 2011 ViaTrack Acquisition [Member]
Purchase price details
Cash paid	$ 3,279	$ 4,204	$ 2,737	$ 8,546	$ 5,710	$ 10,923
Purchase price holdback	125		600		1,187
Common Stock issued at fair value	0		2,863		1,068
Contingent consideration	800		2,346		2,958
Total purchase price	$ 4,204		$ 8,546		$ 10,923