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Interest Rate Swaps (Fair Value of Derivative Instruments) (Details) - Interest Rate Contract [Member] - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Assets $ 171 $ 276
Other Assets [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Assets 171 276
Other Liabilities [Member]    
Derivative Instruments and Hedging Activities Disclosures [Line Items]    
Liabilities $ 171 $ 276