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Accumulated Other Comprehensive Income (Loss) (Reclassification adjustments) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Reclassification out of Accumulated Other Comprehensive Income [Line Items]      
Income before federal income tax expense $ 21,832 $ 26,844 $ 23,347
Labor and Related Expense 25,905 24,887 23,749
Federal income tax expense (3,665) (4,606) (3,848)
NET INCOME 18,167 22,238 19,499
Reclassification out of Accumulated Other Comprehensive Income [Member] | Unrealized Holding Gains (Losses) on AFS Securities [Member]      
Reclassification out of Accumulated Other Comprehensive Income [Line Items]      
Federal income tax expense (14) 0 0
NET INCOME 53 0 0
Debt Securities, Available-for-sale, Realized Gain (Loss), Excluding Other-than-temporary Impairment 67 0 0
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Pension Plan [Member]      
Reclassification out of Accumulated Other Comprehensive Income [Line Items]      
Labor and Related Expense 95 59 (31)
Federal income tax expense (20) (12) 7
NET INCOME $ 75 $ 47 $ (24)