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Other Comprehensive Income (Tables)
12 Months Ended
Dec. 31, 2022
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, 2022, 2021, and 2020:

December 31, 2022December 31, 2021December 31, 2020
Unrealized holding gains (losses) on available-for-sale securities$(67,167)$(19,526)$12,494 
Less reclassification adjustment for gains recognized in earnings(651)(783)(2,190)
Net unrealized gains (losses)(67,818)(20,309)10,304 
Tax effect14,242 4,265 (2,164)
Net-of-tax amount(53,576)(16,044)8,140 
Amortization of unrealized gains from held-to-maturity securities1,107 — — 
Tax effect(232)— — 
Net-of-tax amount875 — — 
Actuarial gain (loss) on postemployment health care plan303 391 277 
Net amortization of transition obligation and actuarial gain(113)(43)— 
Net unrealized gain (loss) on postemployment health care plan190 348 277 
Tax effect(40)(73)(58)
Net-of-tax amount150 275 219 
Unrealized gain (loss) on interest rate swap411 105 (508)
Less reclassification adjustment for losses recognized in earnings127 276 224 
Net unrealized gain (loss)538 381 (284)
Tax effect(113)(80)60 
Net-of-tax amount425 301 (224)
Other comprehensive income (loss)$(52,126)$(15,468)$8,135 
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, 2022, 2021, and 2020.

Balance
12/31/21
Comprehensive
Income (Loss)
Balance
12/31/22
Unrealized gains (losses) on securities available-for-sale$(706)$(53,576)$(54,282)
Amortization of unrealized gains from held-to-maturity securities— 875 875 
Unrealized gain on postretirement benefits plan618 150 768 
Unrealized loss on interest rate swap(306)425 119 
Total$(394)$(52,126)$(52,520)

Balance
12/31/20
Comprehensive
Income (Loss)
Balance
12/31/21
Unrealized gains on securities available-for-sale$15,338 $(16,044)$(706)
Unrealized gain on postretirement benefits plan343 275 618 
Unrealized loss on interest rate swap(607)301 (306)
Total$15,074 $(15,468)$(394)
 
Balance
1/1/20
Comprehensive
Income (Loss)
Balance
12/31/20
Unrealized gains (losses) on securities available-for-sale$7,198 $8,140 $15,338 
Unrealized gain (loss) on postretirement benefits plan124 219 343 
Unrealized loss on interest rate swap(383)(224)(607)
Total$6,939 $8,135 $15,074