Intangible Assets and Goodwill (Details) (USD $)	12 Months Ended					12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Patents	Dec. 31, 2012 Patents	Dec. 31, 2013 Technological know-how	Dec. 31, 2012 Technological know-how	Dec. 31, 2013 Customer relationships	Dec. 31, 2012 Customer relationships	Dec. 31, 2013 Covenants not to compete	Dec. 31, 2012 Covenants not to compete	Dec. 31, 2013 Strategic marketing agreement	Dec. 31, 2012 Strategic marketing agreement	Dec. 31, 2013 Tradenames	Dec. 31, 2012 Tradenames	Jun. 30, 2012 Customer contracts
Intangible assets
Gross				$ 1,054,000	$ 1,054,000	$ 15,033,000	$ 15,141,000	$ 37,935,000	$ 37,358,000	$ 1,144,000	$ 881,000	$ 6,203,000	$ 6,203,000	$ 885,000	$ 843,000
Less: accumulated amortization				(897,000)	(766,000)	(7,853,000)	(4,913,000)	(15,155,000)	(10,793,000)	(935,000)	(517,000)	(597,000)	(293,000)	(427,000)	(196,000)
Net	36,390,000			157,000	288,000	7,180,000	10,228,000	22,780,000	26,565,000	209,000	364,000	5,606,000	5,910,000	458,000	647,000
Trademarks	247,000	247,000
Intangible assets, net	36,637,000	44,249,000
Weighted Average Useful Life				8 years		6 years 1 month 6 days		8 years 8 months 12 days		2 years		10 years		3 years 9 months 18 days
Purchase consideration																1,250,000
Amortization expense of intangible assets	8,100,000	6,700,000	3,000,000
Estimate of future amortization expense for acquired intangible assets
2014	7,613,000
2015	6,082,000
2016	5,742,000
2017	5,068,000
2018	4,583,000
Thereafter	7,302,000
Net	$ 36,390,000			$ 157,000	$ 288,000	$ 7,180,000	$ 10,228,000	$ 22,780,000	$ 26,565,000	$ 209,000	$ 364,000	$ 5,606,000	$ 5,910,000	$ 458,000	$ 647,000