Annual report pursuant to Section 13 and 15(d)

Employee Retirement Plan and Deferred Compensation Plan (Details)

v2.4.0.6
Employee Retirement Plan and Deferred Compensation Plan (Details) (USD $)
 1 Months Ended 12 Months Ended
Jan. 31, 2010
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Employee Retirement Plan and Deferred Compensation Plan (Textual) [Abstract]        
Minimum service period required to cover under plan   1 month    
Employee's salary subscription rate   6.00%    
Contributions vest in annual installments   3 years    
Discretionary contributions   $ 324,000 $ 300,000 $ 213,000
Defer up to under deferred Compensation Plan of base salary 90.00%      
Defer up to under deferred Compensation Plan of annual earned bonus 100.00%      
Deferred compensation plan vested 100.00%      
Eligible contributions to deferred compensation plan 50.00%      
Deferred Compensation Plan - Company matching contribution percentage maximum (at fifty cents per dollar) 2.00%      
Deferred compensation plan assets   700,000 500,000  
Deferred compensation plan associated liabilities   700,000 400,000  
Employee contribution associated liabilities   500,000 400,000  
Company contribution associated liabilities   109,000 74,000  
Change in the cash surrender value   $ 34,300 $ 34,000