Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Capital stock (Details)

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Note 5 - Capital stock (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jul. 01, 2012
Jun. 30, 2013
Jul. 01, 2012
Dec. 30, 2012
Note 5 - Capital stock (Details) [Line Items]          
Common Stock, Shares Authorized 26,000,000   26,000,000   26,000,000
Common Stock, Par or Stated Value Per Share (in Dollars per share) $ 0.01   $ 0.01   $ 0.01
Common Stock, Voting Rights     one    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 210,000   210,000    
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition (in Dollars) $ 81 $ 101 $ 181 $ 202  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized (in Dollars) $ 638   $ 638    
Special Voting Stock[Member]
          
Note 5 - Capital stock (Details) [Line Items]          
Common Stock, Shares Authorized 5,000,000   5,000,000   5,000,000
Common Stock, Par or Stated Value Per Share (in Dollars per share) $ 0.01   $ 0.01   $ 0.01