Fair Value Measurements And Fair Values Of Financial Instruments (Narrative) (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Fair Value Measurements And Fair Values Of Financial Instruments [Abstract]
Derivative liabilities	$ 2,000	$ 3,000
Total liabilities	$ 0
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Liabilities	Other Liabilities