Note 14 - Earnings Per Share - Basic and Diluted Earnings Per Share Attributable to Common Shareholders (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Net earnings	$ 66,610	$ 19,009	$ 5,598
Basic weighted average shares outstanding (in shares)	19,344	19,278	19,243
Dilutive effect of stock-based compensation (in shares)	190	105	97
Diluted weighted average shares outstanding (in shares)	19,534	19,383	19,340
Basic (in dollars per share)	$ 3.44	$ 0.99	$ 0.29
Diluted (in dollars per share)	$ 3.41	$ 0.98	$ 0.29