Note 10 - Earnings Per Share - Basic and Diluted Earnings Per Share Attributable to Common Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Mar. 30, 2024	Dec. 30, 2023	Apr. 01, 2023	Dec. 31, 2022	Mar. 30, 2024	Apr. 01, 2023
Net earnings	$ 6,939	$ 1,132	$ 5,101	$ 11,123	$ 8,071	$ 16,224
Basic weighted average shares outstanding (in shares)	19,508		19,503		19,503	19,514
Dilutive effect of stock-based compensation (in shares)	86		59		81	59
Diluted weighted average shares outstanding (in shares)	19,594		19,562		19,584	19,573
Basic (in dollars per share)	$ 0.36		$ 0.26		$ 0.41	$ 0.83
Diluted (in dollars per share)	$ 0.35		$ 0.26		$ 0.41	$ 0.83