Commitments and Contingencies (Narrative) (Details) - USD ($)		12 Months Ended
	Jan. 01, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2003
Right-of-use assets		$ 7,000,000.0	$ 6,500,000
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]		Other Assets, Noncurrent	Other Assets, Noncurrent
Lease liabilities		$ 7,348,000	$ 6,800,000
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration]		Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Additional lease assets recorded		$ 2,171,000
Payments on lease liabilities		1,826,000	$ 1,797,000
Total lease expense		$ 1,864,000	$ 1,807,000	$ 1,765,000
Option to extend		true
Weighted average remaining lease term		6 years 6 months
Weighted average discount rate		5.40%
Contingent cash payment					$ 1,000,000
Interim License Agreement with American Society of Composers, Authors and Publishers
License agreement term	5 years