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Stock Compensation Plans (Details) - USD ($)
6 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Jan. 28, 2020
Jan. 27, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate intrinsic value of options exercised during the period $ 337,000 $ 443,000    
Number of unvested stock options (shares) 189,910 178,670    
Unvested stock options, aggregate grant date fair value $ 1,070,000.00 $ 847,000    
Unvested stock options, aggregate intrinsic value 371,000      
Stock options vested during period, aggregate grant date fair value $ 1,000 $ 2,000    
Stock options vested during period (shares) 200 400    
Stock options, outstanding, aggregate intrinsic value $ 1,780,000 $ 2,170,000    
Unrecognized compensation expense, non-vested options $ 972,000      
Unrecognized compensation expense, non-vested options, amortization period (in years) 5 years      
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares) 300,000      
Award vesting percentage 20.00%      
Award vesting period (years) 5 years      
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Contractual term 10 years      
Equity Incentive Plan 2014        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares)       352,366
Number of shares available for grant (in shares) 1,796      
Equity Incentive Plan 2019        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized (in shares) 198,900   350,000  
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