Annual report pursuant to Section 13 and 15(d)

Income Taxes (Textual) (Details)

v2.4.0.6
Income Taxes (Textual) (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Income Tax Disclosure [Abstract]      
Increase in deferred tax asset valuation allowance $ 8,600,000 $ 5,800,000 $ 1,600,000
Unremitted foreign earnings 1,000,000    
Interest and penalties recognize in income tax expense 11,000 39,000 75,000
Interest and penalties recognized on the balance sheet 250,000 239,000  
Impact on effective tax rate if unrecognized tax benefits were recognized 1,500,000 1,400,000  
Unrecognized tax benefits expected to be recognized during the next twelve months 54,000    
Deferred tax asset, research credit extension $ 400,000