Note 13 Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Dec. 28, 2019	Dec. 29, 2018
Weighted average shares used in computing per share amount:
Net income	$ 38,345	$ 37,952
Weighted average common shares outstanding	70,178	68,303
Effect of dilutive stock options and restricted stock units	2,420	2,598
Denominator for diluted earnings per share	72,598	70,901
Net income per share:
Basic	$ 0.55	$ 0.56
Diluted	$ 0.53	$ 0.54