Income Taxes (Schedule Of Effective Income Tax Rate Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Abstract]
Computed "Expected" Federal Tax Expense (Benefit From)	$ 96	$ (36)
State Income Taxes, net of Federal Benefit	1	1
R&D Credits	(99)	(7)
Permanent Differences	4	1
Other	47	(7)
Total Federal and State Income Taxes	49	(48)
Accrued interest or penalties related to uncertain tax positions	$ 0	$ 0