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Accumulated Other Comprehensive Income (Loss) (Changes in AOCI by component) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning Balance $ (25,896) $ (37,194)
OCI before reclassifications 2,926 (8,610)
Amounts reclassified from AOCI 0 1
Other Comprehensive Income (Loss), before Tax (2,926) 8,609
Tax effect 632 (1,729)
Unrealized gains (losses), net of tax (2,294) 6,880
Ending Balance (28,190) (30,314)
Unrealized Holding Gains (Losses) on AFS Securities [Member]    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning Balance (25,199) (35,828)
OCI before reclassifications 2,926 (8,610)
Amounts reclassified from AOCI 0 1
Other Comprehensive Income (Loss), before Tax (2,926) 8,609
Tax effect 632 (1,729)
Unrealized gains (losses), net of tax (2,294) 6,880
Ending Balance (27,493) (28,948)
Defined Benefit Pension Plan [Member]    
AOCI Attributable to Parent, Net of Tax [Roll Forward]    
Beginning Balance (697) (1,366)
OCI before reclassifications 0 0
Amounts reclassified from AOCI 0 0
Other Comprehensive Income (Loss), before Tax 0 0
Tax effect 0 0
Unrealized gains (losses), net of tax 0 0
Ending Balance $ (697) $ (1,366)