Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Debt (Details)

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Note 5 - Debt (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 28, 2015
Jun. 29, 2014
Jun. 28, 2015
Jun. 29, 2014
Dec. 28, 2014
Base Rate [Member] | PNC Facility [Member] | United States of America, Dollars          
Note 5 - Debt (Details) [Line Items]          
Debt Instrument, Basis Spread on Variable Rate     1.25%    
Base Rate [Member] | PNC Facility [Member] | Depending on Fixed Charge Coverage Ratio [Member] | Canada, Dollars          
Note 5 - Debt (Details) [Line Items]          
Debt Instrument, Basis Spread on Variable Rate     0.75%    
PNC Bank [Member] | Revolving Credit Facility [Member]          
Note 5 - Debt (Details) [Line Items]          
Long-term Line of Credit (in Dollars) $ 22,080   $ 22,080   $ 21,370
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) $ 40,000   $ 40,000    
Weighted Average [Member] | PNC Bank [Member] | Revolving Credit Facility [Member]          
Note 5 - Debt (Details) [Line Items]          
Line of Credit Facility, Interest Rate During Period 4.50% 4.91% 4.50% 4.46%