Selected Balance Sheet Accounts (Details 1) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Intangible Assets
Gross	$ 36,847	$ 40,622
Accumulated Amortization	(18,012)	(19,039)
Net	$ 21,035	23,783
Software and publications [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	3 years
Intangible Assets
Gross	$ 1,300	1,300
Accumulated Amortization	(1,300)	(1,300)
Net	0	0
Trademarks and Trade Names [Member]
Intangible Assets
Gross	5,519	9,294
Accumulated Amortization	(3,322)	(6,756)
Net	$ 2,197	2,538
Trademarks and Trade Names [Member] | Minimum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	3 years
Trademarks and Trade Names [Member] | Maximum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	6 years
Customer Relationships [Member]
Intangible Assets
Gross	$ 19,563	19,563
Accumulated Amortization	(9,004)	(7,454)
Net	$ 10,559	12,109
Customer Relationships [Member] | Minimum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	2 years
Customer Relationships [Member] | Maximum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	10 years
Developed Technology Rights [Member]
Intangible Assets
Gross	$ 8,955	8,955
Accumulated Amortization	(2,937)	(2,256)
Net	$ 6,018	6,699
Developed Technology Rights [Member] | Minimum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	5 years
Developed Technology Rights [Member] | Maximum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	7 years
Employment/non-compete agreements [Member]
Intangible Assets
Gross	$ 1,510	1,510
Accumulated Amortization	(1,449)	(1,273)
Net	$ 61	237
Employment/non-compete agreements [Member] | Minimum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	1 year
Employment/non-compete agreements [Member] | Maximum [Member]
Finite-Lived Intangible Assets
Estimated Useful Life	5 years
Trademark [Member]
Intangible Assets
Gross	$ 2,200	2,200
Accumulated Amortization	0	0
Net	$ 2,200	$ 2,200