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Stockholders' Equity (Narrative) (Details) - USD ($) |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Apr. 02, 2024 | Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Directors compensation expense |  | $ 200,000 |  | $ 700,000 | $ 400,000
Remaining authorized repurchase amount |  | 48,900,000 |  | 48,900,000 |
ESPP |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation expense |  | 100,000 | $ 200,000 | 300,000 | 400,000
Restricted Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation expense |  | 600,000 | 400,000 | 1,100,000 | 600,000
Stock options |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation expense |  | 800,000 | 700,000 | $ 1,000,000.0 | 1,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage |  |  |  | 33.00% |
Common stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Share-based compensation expense |  |  |  | $ 800,000 |
Director |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Quarterly installment of annual cash retainer | $ 37,500 |  |  |  |
Admission grant | 25,000 |  |  |  |
Officers and Key Employees |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Directors compensation expense |  | $ 500,000 | $ 700,000 | $ 100,000 | $ 700,000
Lead Director |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Quarterly installment of annual cash retainer | 5,000 |  |  |  |
Additional installment of annual cash retainer | 20,000 |  |  |  |
Chairman of Audit Committee |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Quarterly installment of annual cash retainer | 5,000 |  |  |  |
Additional installment of annual cash retainer | 20,000 |  |  |  |
Chairman of Compensation Commitee |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Quarterly installment of annual cash retainer | 3,750 |  |  |  |
Additional installment of annual cash retainer | 15,000 |  |  |  |
Chairman of Corporate Governance |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Quarterly installment of annual cash retainer | 2,500 |  |  |  |
Additional installment of annual cash retainer | $ 10,000 |  |  |  |

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