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Stock-Based Compensation (Narrative) (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
USD ($)
shares
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
ShareBasedCompensationPlan
shares
Jun. 30, 2020
USD ($)
shares
May 29, 2019
shares
Mar. 19, 2019
shares
May 16, 2013
shares
May 21, 2009
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of stock-based compensation plans | ShareBasedCompensationPlan     2          
Compensation cost | $ $ 195 $ 207 $ 356 $ 350        
Total income tax (expense) benefit | $ $ 41 43 $ 75 $ 73        
Shares available to be issued             272,727  
2009 Equity Compensation Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares remaining available           0    
2019 Equity Incentive Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares authorized         300,000      
Shares remaining available 184,107   184,107          
Stock Options [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Expiration period     10 years          
Shares cancelled, forfeited or expired     1,454 14        
Options exercised     14,544 4,545        
Shares granted     0 0        
Stock Options [Member] | Minimum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting periods     1 year          
Stock Options [Member] | Maximum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting periods     3 years          
Restricted Stock [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Shares vested     5,884 17,092        
Shares granted     68,460          
Unrecognized compensation cost | $ $ 1,470 $ 805 $ 1,470 $ 805        
Shares, Forfeited     949 5,234        
Restricted Stock [Member] | 2009 Equity Compensation Plan [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Number of shares authorized               36,363
Restricted Stock [Member] | Minimum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting periods     1 year          
Restricted Stock [Member] | Maximum [Member]                
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                
Vesting periods     3 years