v3.26.1
Stock Compensation Plans (Details)
9 Months Ended
Jun. 30, 2026
USD ($)
plan
shares
Jun. 30, 2025
USD ($)
shares
Sep. 30, 2025
shares
Sep. 30, 2024
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of stock compensation plans | plan 1      
Options outstanding (in shares) 152,050 252,980 215,530 306,240
Aggregate intrinsic value of options exercised during the period | $ $ 747,000 $ 487,000    
Number of unvested stock options (shares) 33,200 69,430    
Unvested stock options, aggregate grant date fair value | $ $ 221,000 $ 421,000,000    
Unvested stock options, aggregate intrinsic value | $ 567,000      
Stock options vested during period, aggregate grant date fair value | $ $ 2,056 $ 16,000    
Stock options vested during period (shares) 300 2,500    
Stock options, outstanding, aggregate intrinsic value | $ $ 2,810,000 $ 1,330,000    
Unrecognized compensation expense, non-vested options | $ $ 127,000      
Unrecognized compensation expense, non-vested options, amortization period (in years) 11 months 1 day      
Number of unvested shares 68,170 46,985 70,450 49,015
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period (years) 5 years      
Granted (shares) 0 0    
Stock Options | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period (years) 3 years      
Stock Options | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award vesting period (years) 5 years      
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Contractual term 10 years      
Unrecognized compensation expense, non-vested options, amortization period (in years) 2 years 3 months      
Cost not yet recognized | $ $ 1,710,000      
Equity Incentive Plan 2019        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares) 350,000      
Number of shares available for grant (in shares) 133,135      
Equity Incentive Plan 2019 | Employee        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares) 300,000      
Equity Incentive Plan 2019 | Directors        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares) 50,000      
Equity Incentive Plan 2014        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options outstanding (in shares) 85,750      
Options vested (in shares) 74,150      
Options unvested (in shares) 11,600