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Stock-Based Compensation Plans (Narrative) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2022
USD ($)
plan
shares
Dec. 31, 2021
shares
Dec. 31, 2018
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of equity compensation plans available for future grants | plan 2    
Shareholder, percent 10.00%    
Unrecognized compensation cost related to share-based payments | $     $ 0.8
Unrecognized compensation cost related to share-based payments, period for recognition     1 year 9 months 21 days
Options granted, shares (in shares) 178,950 186,900  
NonPrincipal Owner      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options, exercise price as percent of weighted-average grant date fair value 100.00%    
Long-Term Incentive Compensation Plan 2007      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares reserved for issuance under equity compensation plans 2,400,000    
Directors’ Incentive Plan 2007      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares reserved for issuance under equity compensation plans 250,000    
Stock Options      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 4 years    
Expected term 7 years    
Dividend yield | $ $ 0.0    
Stock Options | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected volatility rate 44.00%    
Weighted average volatility rate 42.00%    
Risk free interest rate 2.22%    
Stock Options | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected volatility rate 45.00%    
Weighted average volatility rate 45.00%    
Risk free interest rate 3.92%    
Stock Options | Principal Owner      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options, expiration period 5 years    
Stock Options | NonPrincipal Owner | Maximum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock options, expiration period 10 years    
Restricted Stock | Director      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period 1 year