Quarterly report pursuant to Section 13 or 15(d)

Note 5 - Debt (Details Textual)

v3.8.0.1
Note 5 - Debt (Details Textual) - PNC Bank [Member] - USD ($)
$ in Thousands
9 Months Ended
May 15, 2017
Oct. 01, 2017
Jul. 02, 2017
Jan. 01, 2017
Oct. 02, 2016
Debt Instrument, Face Amount $ 10,000        
Line of Credit Facility, Periodic Payment $ 500        
Long-term Line of Credit   $ 8,500   $ 10,000  
Revolving Credit Facility [Member]          
Debt, Weighted Average Interest Rate   4.80%     4.20%
Line of Credit Facility, Remaining Borrowing Capacity   $ 7,106   7,377  
Line of Credit Facility, Maximum Borrowing Capacity   30,000 $ 30,000    
Debt Instrument, Interest Rate, Increase (Decrease) 0.25%        
Long-term Line of Credit   $ 5,909   $ 2,731  
Base Rate [Member]          
Debt Instrument, Basis Spread on Variable Rate   1.25%      
Debt Instrument, Basis Spread on Variable Rate, If Specified Fixed Charge Coverage Ratio is Maintained 0.75%        
Base Rate [Member] | Revolving Credit Facility [Member]          
Debt Instrument, Basis Spread on Variable Rate   0.75%      
Debt Instrument, Basis Spread on Variable Rate, If Specified Fixed Charge Coverage Ratio is Maintained 0.25%