Annual report pursuant to Section 13 and 15(d)

Stock Options, Stock Grants and New Stock (Summary of Stock Option Activity) (Details)

v2.4.0.8
Stock Options, Stock Grants and New Stock (Summary of Stock Option Activity) (Details) (USD $)
 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Feb. 07, 2013
Feb. 09, 2012
Dec. 28, 2013
Dec. 29, 2012
Dec. 31, 2011
Jan. 01, 2011
Aug. 21, 2012
President of Palmer [Member]
Dec. 28, 2013
Stock Options [Member]
Dec. 29, 2012
Stock Options [Member]
Dec. 31, 2011
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stock Repurchased During Period, Shares               1,752   1,045
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)     $ 11.82 $ 11.28 $ 9.13          
Granted, weighted average exercise price (dollars per share) $ 13.70 $ 11.35     $ 11.55   $ 12.73      
Exercises, weighted average exercise price (dollars per share)     $ 10.69 $ 10.50 $ 9.15          
Canceled / Expired, weighted average exercise price (dollars per share)     $ 12.70 $ 0.00 $ 9.96          
Outstanding, end of year, weighted average exercise price (dollars per share)     $ 11.95 $ 11.82 $ 11.28 $ 9.13        
Exercisable, weighted average exercise price (dollars per share)     $ 11.26         $ 11.26 $ 10.84 $ 9.96
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]                    
Outstanding, beginning of year (shares)     220,740 120,800 44,000          
Granted (shares) 40,594 36,740   100,000     75,000      
Exercised (shares)     (15,247) (11,800) (19,200)     (15,247) (11,800) (19,200)
Canceled / Expired (shares)     (83,351) 0 (4,000)          
Outstanding, end of year (shares)     162,736 220,740 120,800 44,000        
Exercisable (shares)     40,591         40,591 29,000 20,800
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest [Roll Forward]                    
Expected to vest (shares)     191,740 100,000            
Granted (shares) 40,594 36,740   100,000     75,000      
Vested (shares)     (27,347) (20,000)            
Expected to vest (shares)     122,145 191,740 100,000          
Expected to vest, beginning of the year, weighted average exercise price (dollars per share)     $ 11.97 $ 11.55            
Granted, weighted average exercise price (dollars per share) $ 13.70 $ 11.35     $ 11.55   $ 12.73      
Vested, weighted average exercise price (dollars per share)     $ 11.49 $ 11.55            
Expected to vest, end of the year, weighted average exercise price (dollars per share)     $ 12.18 $ 11.97 $ 11.55          
Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price     $ 12.71              
Authorization of stock options (shares)       350,000            
Options outstanding, weighted average contractual term (years)     7 years 6 months 15 days 8 years 4 months 24 days 8 years 3 years 7 months 6 days        
Options exercisable, weighted average contractual term (years)     6 years 9 months 8 days              
Options expected to vest, weighted average contractual term (years)     7 years 9 months 29 days 8 years 10 months 24 days 9 years 1 month 6 days          
Options outstanding, intrinsic value     $ 582,894 $ 367,937 $ 6,448 $ 131,670        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Authorized     181,017 138,260 250,000 0        
Options exercisable, intrinsic value     173,518              
Options granted, weighted average fair value (dollars per share) $ 6.30 $ 5.03 $ 7.19 $ 6.40 $ 7.93   $ 5.44      
Stock repurchased during year               $ 25,000   $ 14,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period     (82,842.00)