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Other Identifiable Intangible Assets (Schedule Of Gross Carrying Value And Accumulated Amortization) (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]    
Goodwill $ 263 $ 263
Total 4,491 4,491
Accumulated Amortization 2,143 2,044
Trade Names [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 135 135
Customer List Intangibles [Member]    
Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 4,093 4,093
Accumulated Amortization $ 2,143 $ 2,044