Goodwill and Other Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Summary of other intangible assets
Amortized intangible assets, Gross Carrying Value	$ 4,493	$ 3,190
Intangible asset, Gross Carrying Value	4,953	3,650
Accumulated Amortization	(2,093)	(1,766)
Amortized intangible assets, Net Carrying Value	2,400	1,424
Total Other Intangible Assets, Net	2,860	1,884
Contracts and customer relationships [Member]
Summary of other intangible assets
Amortized intangible assets, Gross Carrying Value	3,556	3,122
Accumulated Amortization	(2,034)	(1,736)
Amortized intangible assets, Net Carrying Value	1,522	1,368
Other [Member]
Summary of other intangible assets
Amortized intangible assets, Gross Carrying Value	937	68
Accumulated Amortization	(59)	(30)
Amortized intangible assets, Net Carrying Value	878	38
Business licenses [Member]
Summary of other intangible assets
Unamortized intangible assets, Gross Carrying Value	$ 460	$ 460