Commitments And Contingencies (Schedule Of Information Related To Right-Of-Use Assets And Lease Liabilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Commitments And Contingencies [Abstract]
Current operating lease liabilities	$ 774	$ 542
Non-current operating lease liabilities	10,040	$ 10,814
Total lease liabilities	10,814
Cash paid for operating lease liabilities	$ 1,643
Weighted average remaining lease term	7 years 9 months 29 days
Weighted average discount rate	10.00%