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Intangible Assets (Details) (USD $)
In Thousands, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Dec. 31, 2012
Indefinite-lived Intangible Assets [Line Items]    
Gross carrying value $ 250 $ 250
Indefinite-Lived Net Intangible Assets (Excluding Goodwill) 250 250
Finite-Lived Intangible Assets, Net [Abstract]    
Gross carrying value 7,719 7,719
Accumulated amortization (3,614) (2,944)
Net carrying value 4,105 4,775
Noncompete Agreements [Member]
   
Finite-Lived Intangible Assets, Net [Abstract]    
Gross carrying value 593 593
Accumulated amortization (452) (426)
Net carrying value 141 167
Partner Relationships [Member]
   
Finite-Lived Intangible Assets, Net [Abstract]    
Gross carrying value 145 145
Accumulated amortization (145) (145)
Net carrying value 0 0
Customer Base [Member]
   
Finite-Lived Intangible Assets, Net [Abstract]    
Gross carrying value 641 641
Accumulated amortization (300) (239)
Net carrying value 341 402
Technology Rights [Member]
   
Finite-Lived Intangible Assets, Net [Abstract]    
Gross carrying value 5,330 5,330
Accumulated amortization (2,199) (1,700)
Net carrying value 3,131 3,630
Trade names [Member]
   
Finite-Lived Intangible Assets, Net [Abstract]    
Gross carrying value 760 760
Accumulated amortization (518) (434)
Net carrying value 242 326
Purchased Technology [Member]
   
Finite-Lived Intangible Assets, Net [Abstract]    
Gross carrying value 350 350
Accumulated amortization (329) (288)
Net carrying value $ 21 $ 62
Weighted average remaining useful life 3 months