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Stock-Based Compensation (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Equity Incentive Plan, shares authorized 1,500,000   1,500,000  
Stock-based compensation expense $ 826 $ 756 $ 1,519 $ 1,478
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unrecognized compensation cost $ 2,638   $ 2,638  
Total unrecognized compensation expense, weighted average period     85 years  
Vesting period     3 years  
Granted, Shares     49,406  
Performance-based restricted shares [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period     3 years  
Granted, Shares     29,688  
Performance-based restricted shares [Member] | June 2021 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted, Shares     29,688  
Percentage of target opportunity for awards to vest     94.40%  
Expiry period     3 years  
Performance-based restricted shares [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of target opportunity for awards to vest     0.00%  
Performance-based restricted shares [Member] | Minimum [Member] | June 2021 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of target opportunity for awards to vest     0.00%  
Performance-based restricted shares [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of target opportunity for awards to vest     150.00%  
Performance-based restricted shares [Member] | Maximum [Member] | June 2021 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of target opportunity for awards to vest     150.00%