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
	Dec. 31, 2022	Jan. 01, 2022
Net earnings	$ 11,123	$ 23,129
Basic weighted average shares outstanding (in shares)	19,525	19,411
Dilutive effect of stock-based compensation (in shares)	59	225
Diluted weighted average shares outstanding (in shares)	19,584	19,636
Basic (in dollars per share)	$ 0.57	$ 1.19
Diluted (in dollars per share)	$ 0.57	$ 1.18