Annual report pursuant to Section 13 and 15(d)

Note 7 - Financial Instruments and Risks (Details Textual)

v3.7.0.1
Note 7 - Financial Instruments and Risks (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Jan. 01, 2017
Jan. 03, 2016
Dec. 28, 2014
Derivative Liability, Current $ 1,256 $ 2,087  
Foreign Currency Transaction Gain (Loss), before Tax 268 347 $ 143
Cost of Sales [Member]      
Unrealized Gain (Loss) on Derivatives 831 616 (1,822)
Gain (Loss) on Sale of Derivatives (2,803) (4,446) $ (1,082)
Derivative Liability, Current $ 1,256 2,087  
PNC Bank [Member]      
Long-term Debt   $ 10,000  
PNC Bank [Member] | Term Loan [Member]      
Line of Credit Facility, Interest Rate at Period End 4.25% 4.30%  
Revolving Credit Facility [Member] | PNC Bank [Member]      
Debt, Weighted Average Interest Rate 4.10% 4.30%  
Line of Credit Facility, Interest Rate at Period End 3.75% 4.00%  
Line of Credit Facility, Maximum Borrowing Capacity $ 30,000