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Stock-Based Compensation (Narrative) (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2001 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2008 | Jan. 01, 2023 | Jul. 02, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Expected dividend yield |  | 0.00% |  |  |  |  |
Proceeds from Employee Stock Purchase Plan |  | $ 935 | $ 587 |  |  |  |
2001 Plan |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Reserved for future issuance | 2,674,749 |  |  |  |  |  |
Number of shares available for grant |  |  |  | 600,737 |  |  |
Vesting Period | 4 years |  |  |  |  |  |
2001 Plan | Maximum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting Period | 10 years |  |  |  |  |  |
ESPP |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Reserved for future issuance |  |  |  |  |  | 206,637 | 278,170
Number of shares available for grant |  | 503,634 |  |  |  |  |
Shares issued/purchased under ESPP |  | 71,276 |  |  |  |  |
Annual incremental percentage |  |  |  |  |  |  | 1.00%
Minimum Percentage |  |  |  |  |  |  | 85.00%
Proceeds from Employee Stock Purchase Plan |  | $ 900 |  |  |  |  |
2021 |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Reserved for future issuance |  | 1,671,202 |  | 1,854,490 |  | 1,033,186 |
Annual incremental percentage |  |  |  | 5.00% |  |  |
2021 | Maximum |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Share based payment award, term |  |  |  | 10 years |  |  |
Employee Stock Option [Member] |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Expected dividend yield |  | 0.00% | 0.00% |  |  |  |
Employee Stock Option [Member] | Employers of certain non-employee directors |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |  |
Vesting Period |  |  |  |  | 48 months |  |

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