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Stock Option And Stock Award Plans (Summary of Assumptions) (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2021
USD ($)
$ / shares
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Dividend yield 2.60%
Weighted average volatility percentage 48.30%
Weighted average risk-free interest rate 0.90%
Weighted average exercise price at date of grant (also weighted average market price at date of grant): $ 16.37
Estimated weighted average fair value of options per share at date of grant $ 5.57
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period, Fair Value | $ $ 2,165
Officers  
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]  
Holding period (years): 5 years
Weighted average exercise price at date of grant (also weighted average market price at date of grant): $ 16.37