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Stock Options, Stock Grants and New Stock (Summary of Stock Option Activity) (Details) (USD $)
 0 Months Ended 12 Months Ended 0 Months Ended
Feb. 09, 2012
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Jan. 02, 2010
Aug. 21, 2012
President of Palmer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]            
Outstanding, beginning of year, weighted average exercise price (dollars per share)   $ 11.28 $ 9.13 $ 8.92    
Granted, weighted average exercise price (dollars per share) $ 11.35   $ 11.55     $ 12.73
Exercises, weighted average exercise price (dollars per share)   $ 10.50 $ 9.15 $ 4.97    
Canceled / Expired, weighted average exercise price (dollars per share)   $ 0.00 $ 9.96 $ 9.96    
Outstanding, end of year, weighted average exercise price (dollars per share)   $ 11.82 $ 11.28 $ 9.13 $ 8.92  
Exercisable, weighted average exercise price (dollars per share)   $ 10.84        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]            
Outstanding, beginning of year (shares)   120,800 44,000 82,993    
Granted (shares) 36,740   100,000     75,000
Exercised (shares)   (11,800) (19,200) (9,900)    
Canceled / Expired (shares)   0 (4,000) (29,093)    
Outstanding, end of year (shares)   220,740 120,800 44,000 82,993  
Exercisable (shares)   29,000        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Roll Forward]            
Expected to vest (shares)   100,000 0      
Granted (shares) 36,740   100,000     75,000
Vested (shares)   (20,000) 0      
Expected to vest (shares)   191,740 100,000 0    
Expected to vest, beginning of the year, weighted average exercise price (dollars per share)   $ 11.55 $ 0.00      
Granted, weighted average exercise price (dollars per share) $ 11.35   $ 11.55     $ 12.73
Vested, weighted average exercise price (dollars per share)   $ 11.55 $ 0.00      
Expected to vest, end of the year, weighted average exercise price (dollars per share)   $ 11.97 $ 11.55 $ 0.00    
Authorization of stock options (shares)     350,000      
Options outstanding, weighted average contractual term (years)   8 years 4 months 24 days 8 years 3 years 7 months 6 days 4 years 6 months  
Options exercisable, weighted average contractual term (years)   5 years 4 months 24 days        
Options expected to vest, weighted average contractual term (years)   8 years 10 months 24 days 9 years 1 month 6 days      
Options outstanding, intrinsic value   $ 367,937 $ 6,448 $ 131,670 $ 76,923  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Authorized   138,260 250,000 0    
Options exercisable, intrinsic value   $ 76,930        
Options granted, weighted average fair value (dollars per share) $ 5.03 $ 6.40 $ 7.93 $ 0.00   $ 5.44