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Stock Based Compensation (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 29, 2012
Sep. 29, 2012
Oct. 01, 2011
Dec. 31, 2011
Stock Based Compensation (Additional Textual) [Abstract]        
Weighted-average grant date fair value of the options granted $ 2.37 $ 2.70    
Stock-based compensation expense capitalized into inventory   $ 11 $ 10  
Total intrinsic value of options exercised   225 84  
Total unrecognized compensation cost, net of forfeitures, related to non-vested share-based compensation arrangements under the Incentive Plan $ 738 $ 738    
Compensation cost recognition, weighted average period (years)   2 years 8 months 5 days    
Shares outstanding       90,189
Restricted stock units [Member]
       
Stock Based Compensation (Textual) [Abstract]        
Restricted stock units awarded   10,666    
Restricted stock units released   15,189