Note 7 - Stock-based Compensation - Restricted Stock Units Activity (Details) - Restricted Stock Units (RSUs) (Details) - Restricted Stock Units (RSUs) [Member] shares in Thousands	6 Months Ended
	Mar. 29, 2025 $ / shares shares
Restricted stock units outstanding, beginning balance (in shares) | shares	119
Weighted average grant date fair value, beginning balance (in dollars per share) | $ / shares	$ 32.96
Granted, units (in shares) | shares	48
Granted, weighted average grant date fair value (in dollars per share) | $ / shares	$ 31.45
Vested, units (in shares) | shares	(24)
Vested, weighted average grant date fair value (in dollars per share) | $ / shares	$ 36.51
Restricted stock units outstanding, ending balance (in shares) | shares	143
Weighted average grant date fair value, ending balance (in dollars per share) | $ / shares	$ 31.85