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Derivatives (Narratives) (Details) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Schedule Of Trading Securities And Other Trading Assets [Line Items]    
Unrealized Gain Loss On Derivatives $ (1,100,000) $ (1,700,000)
Derivative Liabilities 1,136,000 1,712,000
Interest Rate Cap [Member]    
Schedule Of Trading Securities And Other Trading Assets [Line Items]    
Derivative Assets 0 0
Derivative Liabilities 0 0
Notional Amount $ 26,200,000 $ 40,400,000