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Stock-Based Compensation (Stock Options Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options outstanding (in shares) 67,000 114,000 232,000 565,000
Fair value of options exercisable $ 1,200      
Weighted average contractual life of outstanding options (in years) 7 months 6 days      
Weighted average contractual life of exercisable options (in years)   1 year 1 month 6 days    
Stock Options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options outstanding (in shares) 66,999      
Number of stock issued during period (in shares) 10,451 11,827    
Value of stock issued during period resulting from exercise of stock options   $ 945