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Stock-Based Compensation (Narrative) (Details)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
shares
Dec. 31, 2021
USD ($)
item
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of plans | item   2
Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total unrecognized stock-based compensation, expected period   1 year 2 months 12 days
Total unrecognized stock-based compensation expense related to options   $ 100
Restricted Shares And RSUs [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total unrecognized stock-based compensation related to unvested shares   $ 600
Total unrecognized stock-based compensation, expected period   1 year 3 months 18 days
Long-Term Incentive Compensation Plan [Member] | Restricted Stock Units (RSUs) [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total unrecognized stock-based compensation related to unvested shares   $ 3,050
Total unrecognized stock-based compensation, expected period   1 year 4 months 24 days
Stock Option Plans [Member] | Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Period options are exercisable   10 years
Stock-based Compensation Outside A Plan [Member] | Chief Executive Officer [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total unrecognized stock-based compensation related to unvested shares   $ 40
Total unrecognized stock-based compensation, expected period   1 year 3 months 18 days
Stock-based Compensation Outside A Plan [Member] | Chief Financial Officer/Chief Operating Officer [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Options issued under stock option plans | shares 79,000  
Minimum [Member] | Restricted Shares And RSUs [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance period   1 year
Maximum [Member] | Restricted Shares And RSUs [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Performance period   3 years