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Accumulated Other Comprehensive Income (Loss) (Reclassification adjustments) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Reclassification out of Accumulated Other Comprehensive Income [Line Items]      
Income before federal income tax expense $ 23,347 $ 11,872 $ 14,404
Labor and Related Expense 23,749 23,772 23,205
Federal income tax expense (3,848) (987) (1,380)
NET INCOME 19,499 10,885 13,024
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 0 (15) (1)
NET INCOME 0 56 5
Debt Securities, Available-for-sale, Realized Gain (Loss), Excluding Other-than-temporary Impairment 0 71 6
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 (31) 176 268
Federal income tax expense 7 (37) (56)
NET INCOME $ (24) $ 139 $ 212