Selected Balance Sheet Accounts (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Intangible Assets
Intangible assets, gross	$ 42,822	$ 42,822
Accumulated amortization	(19,039)	(13,307)
Intangible assets, net	23,783	29,515
Trademarks and Trade Names [Member]
Intangible Assets
Intangible assets, gross	9,294	9,294
Accumulated amortization	(6,756)	(6,071)
Intangible assets, net	$ 2,538	3,223
Trademarks and Trade Names [Member] | Minimum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	3 years
Trademarks and Trade Names [Member] | Maximum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	6 years
Software and publications [Member]
Intangible Assets
Intangible assets, gross	$ 1,300	1,300
Accumulated amortization	(1,300)	(1,300)
Intangible assets, net	$ 0	0
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	3 years
Customer Relationships [Member]
Intangible Assets
Intangible assets, gross	$ 19,563	19,563
Accumulated amortization	(7,454)	(4,341)
Intangible assets, net	$ 12,109	15,222
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	2 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	10 years
Employment/non-compete agreements [Member] | Minimum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	1 year
Employment/non-compete agreements [Member] | Maximum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	5 years
Developed Technology Rights [Member]
Intangible Assets
Intangible assets, gross	$ 8,955	8,955
Accumulated amortization	(2,256)	(746)
Intangible assets, net	$ 6,699	8,209
Developed Technology Rights [Member] | Minimum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	5 years
Developed Technology Rights [Member] | Maximum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life (in years)	7 years
Tradename [Member]
Intangible Assets
Intangible assets, gross	$ 2,200	2,200
Accumulated amortization	0	0
Intangible assets, net	2,200	2,200
Noncompete Agreements [Member]
Intangible Assets
Intangible assets, gross	1,510	1,510
Accumulated amortization	(1,273)	(849)
Intangible assets, net	$ 237	$ 661