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Other Comprehensive Income
 12 Months Ended
Dec. 31, 2019
Equity [Abstract]  
Other Comprehensive Income Other Comprehensive Income

Other comprehensive income components and related tax effects were as follows for the years ended December 31, 2019, 2018, and 2017: 
 
2019
 
2018
 
2017
Unrealized holding gains (losses) on available for sale securities
$
13,732

 
$
(5,073
)
 
$
(136
)
Less reclassification adjustment for gains recognized in earnings
(148
)
 
0

 
(160
)
Net unrealized gains (losses)
13,584

 
(5,073
)
 
(296
)
Tax effect
(2,852
)
 
1,066

 
104

Net-of-tax amount
10,732

 
(4,007
)
 
(192
)
Unrealized holding gains (losses) on available for sale securities for which a portion of an other-than-temporary impairment has been recognized in earnings
0

 
0

 
134

Less reclassification adjustment for gains recognized in earnings
0

 
0

 
(1,383
)
Net unrealized gains
0

 
0

 
(1,249
)
Tax effect
0

 
0

 
437

Net-of-tax amount
0

 
0

 
(812
)
Actuarial gain (loss) on postemployment health care plan
518

 
404

 
808

Net amortization of transition obligation and actuarial gain
23

 
84

 
192

Net unrealized gain (loss) on postemployment health care plan
541

 
488

 
1,000

Tax effect
(113
)
 
(102
)
 
(175
)
Net-of-tax amount
428

 
386

 
825

Unrealized gain (loss) on interest rate swap
(347
)
 
(204
)
 
10

Less reclassification adjustment for losses recognized in earnings
63

 
164

 
288

Net unrealized gain (loss)
(284
)
 
(40
)
 
298

Tax effect
59

 
8

 
(104
)
Net-of-tax amount
(225
)
 
(32
)
 
194

Other comprehensive income (loss)
$
10,935

 
$
(3,653
)
 
$
15



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, 2019, 2018, and 2017. 
 
Balance
12/31/18
 
Comprehensive
Income (Loss)
 
Reclassification of
Disproportionate
Tax Effect
 
Balance
12/31/19
Unrealized gains (losses) on securities available for sale
$
(3,534
)
 
$
10,732

 
$
0

 
$
7,198

Unrealized gain (loss) on postretirement benefits plan
(304
)
 
428

 
0

 
124

Unrealized loss on interest rate swap
(158
)
 
(225
)
 
0

 
(383
)
Total
$
(3,996
)
 
$
10,935

 
$
0

 
$
6,939


 
Balance
12/31/17
 
Comprehensive
Income (Loss)
 
Reclassification of
Disproportionate
Tax Effect
 
Balance
12/31/18
Unrealized gains (losses) on securities available for sale
$
473

 
$
(4,007
)
 
$
0

 
$
(3,534
)
Unrealized gain (loss) on postretirement benefits plan
(690
)
 
386

 
0

 
(304
)
Unrealized loss on interest rate swap
(126
)
 
(32
)
 
0

 
(158
)
Total
$
(343
)
 
$
(3,653
)
 
$
0

 
$
(3,996
)
 
 
Balance
1/1/17
 
Comprehensive
Income (Loss)
 
Reclassification of
Disproportionate
Tax Effect
 
Balance
12/31/17
Unrealized gains (losses) on securities available for sale
$
1,393

 
$
(1,004
)
 
$
84

 
$
473

Unrealized gain (loss) on postretirement benefits plan
(1,217
)
 
825

 
(298
)
 
(690
)
Unrealized loss on interest rate swap
(297
)
 
194

 
(23
)
 
(126
)
Total
$
(121
)
 
$
15

 
$
(237
)
 
$
(343
)