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Selected Balance Sheet Accounts (Details 1) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Intangible Assets    
Gross $ 42,822 $ 42,822
Accumulated Amortization (14,737) (13,307)
Net 28,085 29,515
Trademarks and Trade Names [Member]    
Intangible Assets    
Gross 11,494 11,494
Accumulated Amortization (6,245) (6,071)
Net $ 5,249 5,423
Trademarks and Trade Names [Member] | Minimum [Member]    
Finite-Lived Intangible Assets    
Estimated Useful Life 5 years  
Software and publications [Member]    
Intangible Assets    
Gross $ 1,300 1,300
Accumulated Amortization $ (1,300) $ (1,300)
Net
Finite-Lived Intangible Assets    
Estimated Useful Life 3 years  
Customer Relationships [Member]    
Intangible Assets    
Gross $ 19,563 $ 19,563
Accumulated Amortization (5,127) (4,341)
Net $ 14,436 15,222
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  
Employment/non-compete agreements [Member]    
Intangible Assets    
Gross $ 1,510 1,510
Accumulated Amortization (963) (849)
Net $ 547 661
Finite-Lived Intangible Assets    
Estimated Useful Life 5 years  
Developed Technology Rights [Member]    
Intangible Assets    
Gross $ 8,955 8,955
Accumulated Amortization (1,102) (746)
Net $ 7,853 $ 8,209
Developed Technology Rights [Member] | Minimum [Member]    
Finite-Lived Intangible Assets    
Estimated Useful Life 1 year  
Developed Technology Rights [Member] | Maximum [Member]    
Finite-Lived Intangible Assets    
Estimated Useful Life 5 years