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Stock-Based Compensation (Narrative) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Remaining requisite service period     20 months  
Unearned compensation $ 1,242   $ 1,242  
Time-Vested Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unearned compensation related to options 252   $ 252  
Remaining service period     15 months  
Stock Appreciation Rights (SARs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award Vesting Period     3 years  
Award contractual term     10 years  
Stock-based compensation 261   $ 192  
Estimated fair value $ 1,135   $ 1,135  
Options Outstanding (shares) 834,343   834,343  
Including Liability Based Awards [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation $ 485 $ 480 $ 578 $ 754
Certain Employees [Member] | Stock Appreciation Rights (SARs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options granted     1,139,464  
Options forfeited     305,121