v3.26.1
Note 10 - Employee Benefit Plans and Stock-based Compensation - Summary of Compensation Costs Related to Stock-Based Compensation Awards (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Jan. 01, 2023
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Allocated share based compensation expense $ 3,540 $ 3,292 $ 3,097  
Shares used in computing basic net income (loss) per share (in shares) 42,643 43,933 43,154 42,643
Shares used in computing diluted net income (loss) per share (in shares) 42,643 43,933 43,154 42,643
Effect on basic net income (loss) per share (in dollars per share) $ 0.08 $ 0.07 $ 0.07  
Effect on diluted net income (loss) per share (in dollars per share) $ 0.08 $ 0.07 $ 0.07  
Cost of Sales [Member]        
Allocated share based compensation expense $ 414 $ 289 $ 322  
Selling, General and Administrative Expenses [Member]        
Allocated share based compensation expense 2,502 2,341 2,295  
Research and Development Expense [Member]        
Allocated share based compensation expense $ 624 $ 662 $ 480