Employee Benefit and Stock Plans (Stock Options Outstanding and Exercisable) (Details)	12 Months Ended
	Nov. 30, 2024 $ / shares shares
$14.92
Stock options outstanding and stock options exercisable
Range of exercise price, maximum (in dollars per share)	$ 14.92
Options outstanding, options (in shares) | shares	14,000
Options outstanding, weighted average exercise price (in dollars per share)	$ 14.92
Options outstanding, weighted average remaining contractual life	10 months 24 days
Options exercisable, options (in shares) | shares	14,000
Options exercisable, weighted average exercise price (in dollars per share)	$ 14.92
$16.21
Stock options outstanding and stock options exercisable
Range of exercise price, maximum (in dollars per share)	$ 16.21
Options outstanding, options (in shares) | shares	404,141
Options outstanding, weighted average exercise price (in dollars per share)	$ 16.21
Options outstanding, weighted average remaining contractual life	1 year 9 months 18 days
Options exercisable, options (in shares) | shares	404,141
Options exercisable, weighted average exercise price (in dollars per share)	$ 16.21
$14.92 to $16.21
Stock options outstanding and stock options exercisable
Range of exercise price, minimum (in dollars per share)	14.92
Range of exercise price, maximum (in dollars per share)	$ 16.21
Options outstanding, options (in shares) | shares	418,141
Options outstanding, weighted average exercise price (in dollars per share)	$ 16.17
Options outstanding, weighted average remaining contractual life	1 year 9 months 18 days
Options exercisable, options (in shares) | shares	418,141
Options exercisable, weighted average exercise price (in dollars per share)	$ 16.17
Options exercisable, weighted average remaining contractual life (in years)	1 year 9 months 18 days