Note 13 - Per Share Calculation - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jan. 31, 2026	Jan. 31, 2025
Per Share Calculation
Net income	$ 20,859	$ 28,191
Less: preferred stock dividends	(2,669)	(2,669)
Less: undistributed earnings allocated to participating securities	0	(209)
Numerator for basic earnings per share	18,190	25,313
Plus: undistributed earnings allocated to participating securities	0	209
Less: undistributed earnings reallocated to participating securities	0	(209)
Numerator for diluted earnings per share	$ 18,190	$ 25,313
Denominator for basic earnings per share – weighted average shares outstanding (in shares)	6,490	6,517
Stock-based payments (in shares)	460	554
Denominator for diluted earnings per share – weighted-average shares outstanding (in shares)	6,950	7,071
Basic earnings per share (in dollars per share)	$ 2.8	$ 3.88
Diluted earnings per share (in dollars per share)	$ 2.62	$ 3.58