Annual report pursuant to Section 13 and 15(d)

Note 11 - Segmented Information (Details Textual)

v3.8.0.1
Note 11 - Segmented Information (Details Textual) - Customer Concentration Risk [Member]
12 Months Ended
Dec. 31, 2017
Jan. 01, 2017
Jan. 03, 2016
Sales Revenue, Net [Member]      
Number of Major Customers 2 2 2
Sales Revenue, Net [Member] | Major Customer1 [Member]      
Concentration Risk, Percentage 12.00% 16.00% 13.00%
Sales Revenue, Net [Member] | Major Customer2 [Member]      
Concentration Risk, Percentage   12.00% 11.00%
Accounts Receivable [Member]      
Number of Major Customers 3 1 1
Concentration Risk, Percentage 40.00%    
Accounts Receivable [Member] | Major Customer1 [Member]      
Concentration Risk, Percentage 14.00% 12.00% 17.00%
Accounts Receivable [Member] | Major Customer2 [Member]      
Concentration Risk, Percentage 14.00%    
Accounts Receivable [Member] | Major Customer3 [Member]      
Concentration Risk, Percentage 12.00%