Note 10 - Stock-Based Compensation Plans - Assumptions Used at Grant Date In the Valuation of RUSs (Details) - Restricted Stock Units (RSUs) [Member]	12 Months Ended
	Dec. 30, 2023	Dec. 31, 2022	Jan. 01, 2022
Weighted average expected volatility		51.44%
Weighted average risk-free interest rate		1.67%
Expected term (years) (Year)	3 years	3 years
Minimum [Member]
Weighted average expected volatility	50.97%		50.37%
Weighted average risk-free interest rate	4.28%		0.22%
Expected term (years) (Year)			3 years
Maximum [Member]
Weighted average expected volatility	54.31%		52.11%
Weighted average risk-free interest rate	4.59%		0.77%
Expected term (years) (Year)			5 years