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Other Comprehensive Income (Tables)
12 Months Ended
Dec. 31, 2024
Equity [Abstract]  
Schedule of Components of Other Comprehensive Income and Related Tax Effects
Other comprehensive income components and related tax effects were as follows for the years ended December 31, 2024, 2023, and 2022:

December 31, 2024December 31, 2023December 31, 2022
Unrealized holding gains (losses) on available-for-sale securities$2,245 $7,785 $(67,167)
Less reclassification adjustment for gains recognized in earnings(74)(52)(651)
Net unrealized gains (losses)2,171 7,733 (67,818)
Tax effect(456)(1,624)14,242 
Net-of-tax amount1,715 6,109 (53,576)
Amortization of unrealized gains from held-to-maturity securities690 748 1,107 
Tax effect(145)(157)(232)
Net-of-tax amount545 591 875 
Actuarial gains (losses) on postemployment health care plan478 (2)303 
Net amortization of transition obligation and actuarial gain(168)(174)(113)
Net unrealized gains (losses) on postemployment health care plan310 (176)190 
Tax effect(65)37 (40)
Net-of-tax amount245 (139)150 
Unrealized gains on interest rate swap— — 411 
Less reclassification adjustment for gains (losses) recognized in earnings— (151)127 
Net unrealized gains (losses)— (151)538 
Tax effect— 32 (113)
Net-of-tax amount— (119)425 
Other comprehensive income (loss)$2,505 $6,442 $(52,126)
Schedule of Change in Accumulated Other Comprehensive Income (Loss)
The following is a summary of the change in the accumulated other comprehensive income (loss) balance, net of tax, for the years ended December 31, 2024, 2023, and 2022.

Balance
December 31, 2023
Comprehensive
Income (Loss)
Balance
December 31, 2024
Unrealized gains on securities available-for-sale$(48,173)$1,715 $(46,458)
Amortization of unrealized gains from held-to-maturity securities1,466 545 2,011 
Unrealized gains on postretirement benefits plan629 245 874 
Total$(46,078)$2,505 $(43,573)

Balance
December 31, 2022
Comprehensive
Income (Loss)
Balance
December 31, 2023
Unrealized gains on securities available-for-sale$(54,282)$6,109 $(48,173)
Amortization of unrealized gains from held-to-maturity securities875 591 1,466 
Unrealized losses on postretirement benefits plan768 (139)629 
Unrealized losses on interest rate swap119 (119)— 
Total$(52,520)$6,442 $(46,078)
 
Balance
January 1, 2022
Comprehensive
Income (Loss)
Balance
December 31, 2022
Unrealized losses on securities available-for-sale$(706)$(53,576)$(54,282)
Amortization of unrealized gains from held-to-maturity securities— 875 875 
Unrealized gains on postretirement benefits plan618 150 768 
Unrealized gains on interest rate swap(306)425 119 
Total$(394)$(52,126)$(52,520)