Annual report pursuant to Section 13 and 15(d)

Intangible Assets, Net and Goodwill Intangible Assets, Net and Goodwill (Narrative) (Details)

v2.4.0.8
Intangible Assets, Net and Goodwill Intangible Assets, Net and Goodwill (Narrative) (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]      
Amortization expense $ 1,330,000 $ 1,402,000 $ 1,403,000
Estimated amortization expense, 2014 1,330,000    
Estimated amortization expense, 2015 1,330,000    
Estimated amortization expense, 2016 1,330,000    
Estimated amortization expense, 2017 1,330,000    
Estimated amortization expense, 2018 1,330,000    
Impairment of goodwill 0 0 0
Impairment of intangible assets (excluding goodwill) $ 0 $ 0 $ 0
Patents And Purchased Technology [Member]
     
Finite-Lived Intangible Assets [Line Items]      
Amortization period, in years 10 years