Annual report pursuant to Section 13 and 15(d)

Note 7 - Stock-based Compensation (Details Textual)

v3.20.1
Note 7 - Stock-based Compensation (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Dec. 29, 2019
Dec. 30, 2018
Dec. 31, 2017
Share-based Payment Arrangement, Expense $ 275 $ 157 $ 75
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares 312,494 629,893 53,622
Share-based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount $ 753    
Restricted Stock Units (RSUs) [Member]      
Share-based Payment Arrangement, Expense $ 501 $ 250 $ 357
Restricted Stock Units (RSUs) [Member] | Minimum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 1 year    
Restricted Stock Units (RSUs) [Member] | Maximum [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years    
Incentive 2019 Plan [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 1,379,508    
Incentive 2019 Plan [Member] | Performance-based Options [Member]      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period 10 years