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Equity Incentive Plans (Narrative) (Details) - USD ($)
 9 Months Ended
Jan. 12, 2022
Apr. 26, 2021
Feb. 19, 2021
Feb. 10, 2021
Sep. 30, 2022
Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items]            
Options granted          
Stock option expense         $ 180,000 $ 175,000
Restricted stock expense         $ 278,000 $ 162,000
Options [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Shares underlying unexercised options         238,440  
Expected future compensation expense, unexercised options         $ 418,000  
Expected future compensation expense, weighted average period for recognition         3 years 10 months 28 days  
Options Exercisable - Number of Option Shares         844,035  
Restricted Stock [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Expected future expenses relating to non-vested restricted shares         $ 1,100,000  
Expected future compensation expense, weighted average period for recognition         1 year 7 months 24 days  
2018 Equity Incentive Plan [Member] | Maximum [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Shares authorized for issuance         1,000,000  
2011 Stock Plan [Member] | Maximum [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Shares authorized for issuance         900,000  
Directors [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Vesting period 4 years          
Directors [Member] | Restricted Stock [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Restricted stock issued 33,000          
Directors [Member] | 2018 Equity Incentive Plan [Member] | Options [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Options granted       66,000    
Vesting period       5 years    
Directors [Member] | 2018 Equity Incentive Plan [Member] | Restricted Stock [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Restricted stock issued     300 26,400    
Vesting period     2 years 4 years    
Certain Officers [Member]            
Defined Benefit Plan Disclosure [Line Items]            
Options granted   6,800        
Vesting period   5 years