Note 10 - Stock-Based Compensation Plans - Assumptions Used at Grant Date In the Valuation of RUSs (Details) |
12 Months Ended | ||
|---|---|---|---|
Jan. 03, 2026 |
Dec. 28, 2024 |
Dec. 30, 2023 |
|
| Expected term (years) (Year) | 3 years | 3 years | |
| Minimum [Member] | |||
| Weighted average expected volatility | 52.75% | 51.04% | 50.97% |
| Weighted average risk-free interest rate | 3.95% | 3.39% | 4.28% |
| Expected term (years) (Year) | 3 years | ||
| Maximum [Member] | |||
| Weighted average expected volatility | 53.01% | 53.96% | 54.31% |
| Weighted average risk-free interest rate | 4.25% | 4.53% | 4.59% |
| Expected term (years) (Year) | 6 years | ||