Goodwill & Other Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Gross Carrying Amount	$ 26,861	$ 23,295
Accumulated Amortization	(10,989)	(8,173)
Net Carrying Amount	15,872	15,122
Customer relationships [Member]
Gross Carrying Amount	22,193	20,286
Accumulated Amortization	(9,064)	(6,361)
Net Carrying Amount	13,129	13,925
Tradenames [Member]
Gross Carrying Amount	982	791
Accumulated Amortization	(700)	(280)
Net Carrying Amount	282	511
Contract backlog [Member]
Gross Carrying Amount		374
Accumulated Amortization		(367)
Net Carrying Amount		7
Intellectual Property and Other [Member]
Gross Carrying Amount	3,686	1,844
Accumulated Amortization	(1,225)	(1,165)
Net Carrying Amount	$ 2,461	$ 679