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Stock-Based Compensation (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Rate
Jul. 01, 2012
Jun. 30, 2013
Jul. 01, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Stock-based compensation $ 296,000 $ 177,000 $ 597,000 $ 279,000
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized 3,000,000   3,000,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Outstanding, Weighted Average Remaining Contractual Term     2 years 6 months  
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not Yet Recognized, Value Expected to Vest in Remainder of Fiscal Year $ 600,000   $ 600,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 12,867   12,867  
Share-based Compensation Arrangement by Share-based Payment Award, Annual Vesting Percentage 20.00%      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 5.83   $ 5.83