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Note 6 - Stock-based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 9 Months Ended
Jul. 01, 2023
Options outstanding, balance (in shares) 365
Weighted average exercise price per share (in dollars per share) $ 30.00
Options outstanding, granted (in shares) 49
Weighted average exercise price per share, granted (in dollars per share) $ 30.27
Options outstanding, forfeited (in shares) (19)
Weighted average exercise price per share, forfeited (in dollars per share) $ 33.22
Options outstanding, exercised (in shares) (12)
Weighted average exercise price per share, exercised (in dollars per share) $ 19.64
Aggregate intrinsic value, exercised $ 135
Options outstanding, balance (in shares) 383
Weighted average exercise price per share (in dollars per share) $ 30.20
Contractual term - weighted average, balance (Year) 7 years 1 month 2 days
Aggregate intrinsic value, outstanding $ 1,400
Options outstanding, vested and anticipated to vest in future (in shares) 376
Weighted average exercise price per share, vested and anticipated to vest in future (in dollars per share) $ 30.15
Contractual term - weighted average, vested and anticipated to vest in future (Year) 7 years 21 days
Aggregate intrinsic value, vested and anticipated to vest in future $ 1,396
Options outstanding, exercisable (in shares) 224
Weighted average exercise price per share, exercisable (in dollars per share) $ 28.71
Contractual term - weighted average, exercisable (Year) 5 years 10 months 24 days
Aggregate intrinsic value, exercisable $ 1,159