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Commitments and Contingencies (Narrative) (Details) - USD ($) |  | 12 Months Ended |
--- | --- | --- | ---
Jan. 01, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2003
Right-of-use assets |  | $ 6,500,000 | $ 6,100,000 |  |
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] |  | Other Assets, Noncurrent | Other Assets, Noncurrent |  |
Lease liabilities |  | $ 6,828,000 | $ 6,400,000 |  |
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] |  | Other Liabilities, Noncurrent | Other Liabilities, Noncurrent |  |
Additional lease assets recorded |  |  | $ 2,279,000 |  |
Payments on lease liabilities |  | $ 1,797,000 | 1,777,000 |  |
Total lease expense |  | $ 1,807,000 | $ 1,765,000 | $ 1,752,000 |
Option to extend |  | true |  |  |
Weighted average remaining lease term |  | 6 years 3 months 18 days |  |  |
Weighted average discount rate |  | 4.80% |  |  |
Contingent cash payment |  |  |  |  | $ 1,000,000
Interim License Agreement with American Society of Composers, Authors and Publishers |  |  |  |  |
License agreement term | 5 years |  |  |  |

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