Goodwill and Other Intangible Assets (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Summary of other intangible assets
Amortized intangible assets, Gross Carrying Value	$ 4,553	$ 3,190
Accumulated Amortization	(2,492)	(1,766)
Amortized intangible assets, Net Carrying Value	2,061	1,424
Intangible asset, Gross Carrying Value	5,013	3,650
Total Other Intangible Assets, Net	2,521	1,884
Contracts and customer relationships [Member]
Summary of other intangible assets
Amortized intangible assets, Gross Carrying Value	3,594	3,122
Accumulated Amortization	(2,384)	(1,736)
Amortized intangible assets, Net Carrying Value	1,210	1,386
Other [Member]
Summary of other intangible assets
Amortized intangible assets, Gross Carrying Value	959	68
Accumulated Amortization	(108)	(30)
Amortized intangible assets, Net Carrying Value	851	38
Business licenses [Member]
Summary of other intangible assets
Unamortized intangible assets, Gross Carrying Value	$ 460	$ 460