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Share-Based Compensation (Narrative) (Details) - USD ($) $ in Thousands |  | 12 Months Ended |
--- | --- | --- | ---
May 11, 2017 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | May 05, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation expense |  | $ 4,288 | $ 5,188 | $ 6,754 |
Total unrecognized compensation cost related to non-vested RSUs |  | 7,844 |  |  |
Amount related to shares used for tax withholding obligations |  | $ 2,185 | $ 4,250 |  |
Annual retainer per non-employee director, percentage paid in cash |  | 50.00% |  |  |
Annual retainer per non-employee director, percentage paid in common stock |  | 50.00% |  |  |
Shares of common stock received by employee directors |  | 106,000 | 50,000 | 79,000 |
Restricted Stock Units (RSUs) [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting rights |  | RSUs primarily vest in equal portions over the three year vesting period. |  |  |
Vesting period |  | 3 years |  |  |
Total unrecognized compensation cost, weighted-average period of recognition |  | 1 year 10 months 24 days |  |  |
Non Qualified Stock Options (NQSO) [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Vesting rights |  | The option awards generally vest in three equal annual installments commencing on the first anniversary of the grant date |  |  |
Exercise period |  | 10 years |  |  |
Awards granted in period |  | 0 | 0 | 0 |
Aggregate intrinsic value of stock options exercised |  | $ 212 | $ 1,351 | $ 779 |
Employees and Directors [Member] | 2017 Long-Term Incentive Plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation arrangement by share-based payment award, number of shares available for grant | 3,300,000 |  |  |  | 1,500,000
Employees and Directors [Member] | 2007 Long-Term Incentive Plan [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Underlying equity awards issued | 1,700,000 |  |  |  |
Non-Employee Directors [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Annual retainer per non-employee director |  | 155 |  |  |
Chairman of the Board [Member] |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Additional annual retainer paid to non-employee director |  | $ 100 |  |  |
Additional percentage of annual retainer paid to non-employee director in common stock |  | 100.00% |  |  |

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