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Stock-Based Compensation (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |  | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
2005 Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Number of shares authorized | 2,000,000 | 2,000,000 |  |
2005 Plan [Member] | One-Year [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period |  | 1 year |  |
2005 Plan [Member] | Three-Year [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period |  | 3 years |  |
2016 Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Expiration date |  | June 2026 |  |
Number of shares authorized | 3,500,000 | 3,500,000 |  |
Percentage of legal entity controlled by optionee |  | 100.00% |  |
Maximum [Member] | 2005 Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Exercise period of options |  | 10 years |  |
Vesting period |  | 4 years |  |
Maximum [Member] | 2016 Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Exercise period of options |  | 10 years |  |
Minimum [Member] | 2005 Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Vesting period |  | 6 months |  |
Performance Shares [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Target PSU's, Granted |  | 268,947 | 413,964 | 132,253
Vesting period |  | 3 years |  |
Market Conditions |  | 25.00% |  |
Performance Conditions |  | 75.00% |  |
Unrecognized compensation expense related to unvested stock options | $ 2.0 | $ 2.0 |  |
Expected period of recognition for unrecognized compensation cost |  | 2 years |  |
Performance Shares [Member] | 2016 Plan [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Target PSU's, Granted | 894,386 |  |  |
Performance Shares [Member] | Maximum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Target Grant |  | 200.00% |  |
Performance Shares [Member] | Minimum [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Target Grant |  | 0.00% |  |
Stock Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options granted |  |  |  |
Options outstanding | 1,127,500 | 1,127,500 | 1,171,352 |
Closing stock price per share | $ 12.18 | $ 12.18 |  |
Unrecognized compensation expense related to unvested stock options | $ 0.1 | $ 0.1 |  |
Directors [Member] | Stock Options [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Options granted |  | 0 |  |
Options outstanding | 100,700 | 100,700 |  |
Weighted average exercise price per share of options outstanding | $ 7.08 | $ 7.08 |  |

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