Quarterly report [Sections 13 or 15(d)]

Stock-Based Compensation and Warrants - Narrative (Details)

v3.25.3
Stock-Based Compensation and Warrants - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2025
Sep. 30, 2024
Sep. 28, 2025
Sep. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation     $ 4,348 $ 4,433
Fair value of options vested     900  
Unrecognized compensation cost related to non-vested awards $ 0   0  
General and administrative expenses        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation 1,200 $ 1,600 4,300 4,400
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost related to non-vested awards 3,900   $ 3,900  
Unrecognized compensation cost, recognition period     1 year 10 months 24 days  
Milestone-Based Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation 200 200 $ 700 600
Performance Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost related to non-vested awards $ 1,100   $ 1,100  
Unrecognized compensation cost, recognition period     1 year 3 months 18 days  
Risk-free interest rate     3.90%  
Common stock value $ 2.98   $ 2.98  
Volatility     71.00%  
Fair value of RSU     $ 300  
Amortization Period     36 months  
Equity Incentive Plan 2019        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares available for issuance 1,825,747   1,825,747  
Director        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation $ 200 $ 200 $ 600 $ 500