Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Abstract]
Computed "Expected" Federal Tax Expense	$ 79	$ 15
Increase (Decrease) in Taxes Resulting From:
State Income Taxes, net of Federal Benefit	1	1
R&D Credits	(63)	0
Permanent Differences	4	2
Other	82	(46)
Total Federal and State Income Taxes	$ 103	$ (28)