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Stockholders' Equity - Compensation Expense & Tax Benefit (Details) - Restricted Stock Units (RSUs) [Member] - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
2022   $ 503  
2023   270  
2024   22  
Compensation expense for stock options      
Compensation expense (benefit) $ 41 $ 1,110 $ 532