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Leases (Schedule Of Lease Cost) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
Operating lease cost $ 125 $ 197
Amortization of right-of-use assets 414 414
Interest on lease liabilities 106 115
Total lease cost 645 726
Cash paid for amounts included in the measurement of operating lease liabilities 112 183
Cash paid for amounts included in the measurement of finance lease liabilities $ 453 $ 444