Note 6 - Stock-based Compensation - Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs) (Details) - Restricted Stock Units (RSUs) [Member] shares in Thousands	9 Months Ended
	Jun. 29, 2024 $ / shares shares
Restricted stock units outstanding, balance (in shares) | shares	105
Weighted average grant date fair value, balance (in dollars per share) | $ / shares	$ 35.07
Restricted stock units outstanding, granted (in shares) | shares	30
Weighted average grant date fair value, granted (in dollars per share) | $ / shares	$ 34.75
Vested, units (in shares) | shares	(28)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 29.87
Restricted stock units outstanding, balance (in shares) | shares	107
Weighted average grant date fair value, balance (in dollars per share) | $ / shares	$ 34.01