Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.19.3.a.u2
Stock-Based Compensation (Narrative) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
May 10, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation cost $ 857 $ 1,082 $ 1,190  
Stock options        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option compensation expense not yet recognized $ 578      
Weighted-average period for recognition of cost not yet recognized 2 years 128 days      
Stock-based compensation cost $ 331 326 366  
Restricted stock and restricted stock units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock option compensation expense not yet recognized $ 468      
Weighted-average period for recognition of cost not yet recognized 2 years 81 days      
Stock-based compensation cost $ 521 $ 566 $ 765  
Nonvested restricted stock or performance stock units granted during year 230,000 279,000 213,000  
Performance stock units forfeited during year (31,000) (3,000) (39,000)  
Performance shares        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation cost $ 5 $ 190 $ 59  
Nonvested restricted stock or performance stock units granted during year 0 169,000 166,000  
Performance stock units forfeited during year (9,000) (45,000) (26,000)  
2007 Stock Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized       3,230,320
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant 604,950