Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Capital Stock (Details Textual)

v3.8.0.1
Note 6 - Capital Stock (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Oct. 01, 2017
Oct. 02, 2016
Oct. 01, 2017
Oct. 02, 2016
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     1,343,716  
Employee Stock Option [Member]        
Allocated Share-based Compensation Expense $ 22 $ 20 $ 45 $ 62
Restricted Stock Units (RSUs) [Member]        
Allocated Share-based Compensation Expense $ 55 $ 99 $ 228 $ 281
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     111,200  
Executive Officer [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross     1,343,716  
Executive Officer [Member] | Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage     20.00%  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting, First Share Price Trigger     $ 2  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting, Second Share Price Trigger     3  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting, Third Share Price Trigger     4  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting, Fourth Share Price Trigger     5  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting, Fifth Share Price Trigger     $ 6  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period     90 days  
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period     10 years