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Stock-Based Compensation (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock-based compensation recognized $ 4,244 $ 2,662    
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Remaining requisite service period 21 months      
Unearned compensation $ 1,626      
Time-Vested Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unearned compensation related to options $ 2,063      
Remaining service period 29 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      
Allocated share based compensation expense (income) $ 3,759 $ 2,553    
Estimated fair value $ 6,163      
Stock appreciation award vesting rights Vesting of the 2021 cash settled stock appreciation rights was contingent upon the achievement of a thirty-day trailing average fair market value of a share of the Company’s common stock of 133.3% ($3.17)      
Exercise price $ 2.38      
Certain Employees [Member] | Stock Appreciation Rights (SARs) [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Granted (shares)     1,735,500  
Granted       1,139,464