Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Amortized intangible assets: [Abstract]
Gross carrying amount	$ 17,379	$ 16,650
Accumulated amortization	(5,124)	(3,761)
Net intangible assets	12,256	12,889
Amortized and unamortized intangible assets: [Abstract]
Total Gross Carrying Amount	17,601	16,868
Total Accumulated Amortization	(5,124)	(3,761)
Net intangible assets	12,477	13,107
Amortization expense for intangible assets	1,385	1,219
Future amortization expense: [Abstract]
2012	1,411
2013	1,229
2014	1,013
2015	888
2016	871
Thereafter	6,844
Total	12,256
Trademarks [Member]
Unamortized intangible assets: [Abstract]
Unamortized intangible assets, Gross Carrying Amount	222	218
Customer Relationships [Member]
Amortized intangible assets: [Abstract]
Gross carrying amount	16,228	16,137
Accumulated amortization	(4,704)	(3,609)
Net intangible assets	11,524	12,528
Patent Costs [Member]
Amortized intangible assets: [Abstract]
Gross carrying amount	1,151	513
Accumulated amortization	(420)	(152)
Net intangible assets	$ 731	$ 361