Quarterly report pursuant to Section 13 or 15(d)

Employee Retirement Plan and Deferred Compensation Plan (Details Textual)

v2.4.0.6
Employee Retirement Plan and Deferred Compensation Plan (Details Textual) (USD $)
1 Months Ended 3 Months Ended
Jan. 31, 2010
Mar. 30, 2013
Mar. 31, 2012
Dec. 29, 2012
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   $ 78,000 $ 79,000  
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   800,000   700,000
Deferred compensation plan associated liabilities   700,000   700,000
Employee contribution associated liabilities   544,000 400,000  
Company contribution associated liabilities   117,000 81,000  
Change in the cash surrender value   $ 31,000 $ 35,000