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Stock-Based Compensation - Non-options (Details) - USD ($)
 1 Months Ended 3 Months Ended 9 Months Ended
Mar. 07, 2023
Dec. 22, 2022
Dec. 01, 2022
Nov. 03, 2022
Jun. 30, 2023
Apr. 30, 2023
Jul. 31, 2023
Jul. 31, 2022
Jul. 31, 2023
Jul. 31, 2022
Restricted stock                    
Share-based Compensation                    
Stock closing price awarded (in dollars per share)                 $ 34.13  
Stock-based compensation expense             $ 200,000 $ 400,000 $ 1,900,000 $ 1,800,000
Outstanding (in shares), Beginning Balance             40,000   67,000  
Granted (in shares)                 38,000  
Vested (in shares)             (6,000)   (71,000)  
Forfeited (in shares)             (4,000)   (4,000)  
Outstanding (in shares), Ending Balance           40,000 30,000   30,000  
Outstanding, Weighted-Average Exercise Price, beginning balance             $ 35.54   $ 45.01  
Granted, Weighted-Average Grant Price                 34.13  
Vested, Weighted-Average Grant Price             34.51   41.85  
Forfeited, Weighted-Average Grant Price             36.81   36.81  
Outstanding, Weighted-Average Exercise Price, ending balance           $ 35.54 $ 35.38   $ 35.38  
Aggregate Intrinsic Value             $ 1,118,000   $ 1,118,000  
Unrecognized stock based compensation expenses             300,000   $ 300,000  
Unrecognized compensation cost period                 3 months 18 days  
Restricted stock | Former CEO                    
Share-based Compensation                    
Shares granted value       $ 100,000            
Stock closing price awarded (in dollars per share)   $ 30.12                
Stock-based compensation expense             800,000   $ 800,000  
Granted (in shares)   3,321                
Vested (in shares) (19,329)                  
Granted, Weighted-Average Grant Price   $ 30.12                
Restricted stock | Board of Directors                    
Share-based Compensation                    
Stock closing price awarded (in dollars per share)     $ 34.51              
Stock-based compensation expense             $ 300,000   $ 800,000  
Granted (in shares)     34,780              
Vested (in shares)           (3,356)        
Forfeited (in shares)           (3,600)        
Outstanding (in shares), Ending Balance             27,824   27,824  
Granted, Weighted-Average Grant Price     $ 34.51              
Restricted stock | Officer                    
Share-based Compensation                    
Granted (in shares)     3,478              
Vested (in shares)           (1,678)        
Forfeited (in shares)           (1,800)        
RSU and PRSU                    
Share-based Compensation                    
Stock closing price awarded (in dollars per share)     $ 34.51              
Granted, Weighted-Average Grant Price     $ 34.51              
RSU and PRSU | Former CEO                    
Share-based Compensation                    
Accelerated stock-based compensation expense             $ 500,000   $ 500,000  
RSU                    
Share-based Compensation                    
Stock closing price awarded (in dollars per share)             $ 34.46   $ 34.46  
Stock-based compensation expense             $ 400,000 300,000 $ 1,300,000 300,000
Vesting period     3 years              
Outstanding (in shares), Beginning Balance             84,000   52,000  
Granted (in shares)     66,325       2,000   68,000  
Vested (in shares)             (13,000)   (32,000)  
Forfeited (in shares)             (18,000)   (33,000)  
Outstanding (in shares), Ending Balance           84,000 55,000   55,000  
Outstanding, Weighted-Average Exercise Price, beginning balance             $ 36.65   $ 39.17  
Granted, Weighted-Average Grant Price             34.46   34.46  
Vested, Weighted-Average Grant Price             36.37   39.25  
Forfeited, Weighted-Average Grant Price             36.18   35.79  
Outstanding, Weighted-Average Exercise Price, ending balance           $ 36.65 $ 35.36   $ 35.36  
Aggregate Intrinsic Value             $ 2,064,000   $ 2,064,000  
Unrecognized stock based compensation expenses             1,500,000   $ 1,500,000  
Unrecognized compensation cost period                 2 years  
RSU | Former CEO                    
Share-based Compensation                    
Vested (in shares) (7,421)                  
Forfeited (in shares) (8,574)                  
RSU | Former Officers [Member]                    
Share-based Compensation                    
Accelerated stock-based compensation expense             300,000   $ 300,000  
Vested (in shares)         (10,311)          
Forfeited (in shares)         (6,123)          
PRSU                    
Share-based Compensation                    
Stock closing price awarded (in dollars per share)                 $ 34.51  
Stock-based compensation expense             $ 400,000 $ 100,000 $ 400,000 $ 100,000
Vesting period     3 years              
Outstanding (in shares), Beginning Balance             72,000   31,000  
Granted (in shares)     66,325           66,000  
Vested (in shares)                 (14,000)  
Forfeited (in shares)             (21,000)   (32,000)  
Adjusted for performance factor (in shares)             (40,000)   (40,000)  
Outstanding (in shares), Ending Balance           72,000 11,000   11,000  
Outstanding, Weighted-Average Exercise Price, beginning balance             $ 35.25   $ 37.49  
Granted, Weighted-Average Grant Price                 34.51  
Vested, Weighted-Average Grant Price                 35.65  
Forfeited, Weighted-Average Grant Price             35.35   35.35  
Adjusted for performance factor, Weighted-Average Grant Price             35.40   35.40  
Outstanding, Weighted-Average Exercise Price, ending balance           $ 35.25 $ 34.51   $ 34.51  
Aggregate Intrinsic Value             $ 411,000   $ 411,000  
Unrecognized stock based compensation expenses             $ 300,000   $ 300,000  
Unrecognized compensation cost period                 2 years 3 months 18 days  
PRSU | Former CEO                    
Share-based Compensation                    
Vested (in shares) (13,687)                  
Forfeited (in shares) (11,285)                  
PRSU | Former Officers [Member]                    
Share-based Compensation                    
Forfeited (in shares)         (6,123)