Other Comprehensive Income (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

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, 2017, 2016, and 2015:

	2017			2016			2015
Unrealized holding losses on available for sale securities	$	(136	)	$	(1,838	)	$	(623	)
Less reclassification adjustment for gains recognized in earnings		(160	)		(83	)		(666	)
Net unrealized losses		(296	)		(1,921	)		(1,289	)
Tax effect		104			672			452
Net-of-tax amount		(192	)		(1,249	)		(837	)
Unrealized holding gains on available for sale securities for which a portion of an other-than-temporary impairment has been recognized in earnings		134			(442	)		2,508
Less reclassification adjustment for gains recognized in earnings		(1,383	)		(922	)		0
Net unrealized gains		(1,249	)		(1,364	)		2,508
Tax effect		437			477			(878	)
Net-of-tax amount		(812	)		(887	)		1,630
Actuarial gain (loss) on postemployment health care plan		808			(282	)		(311	)
Net amortization of transition obligation and actuarial gain		192			184			173
Net unrealized gain (loss) on postemployment health care plan		1,000			(98	)		(138	)
Tax effect		(175	)		34			48
Net-of-tax amount		825			(64	)		(90	)
Unrealized gain (loss) on interest rate swap		10			(63	)		(168	)
Less reclassification adjustment for losses recognized in earnings		288			340			378
Net unrealized gain		298			277			210
Tax effect		(104	)		(97	)		(73	)
Net-of-tax amount		194			180			137
Other comprehensive income (loss)	$	15		$	(2,020	)	$	840

Summary 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, 2017, 2016, and 2015.

		Balance			Comprehensive			Reclassification of Disproportionate			Balance
		12/31/16			Income (Loss)			Tax Effect			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	)

		Balance			Comprehensive			Reclassification of Disproportionate		Balance
		12/31/15			Income (Loss)			Tax Effect		12/31/16
Unrealized gains (losses) on securities available for sale	$	3,529		$	(2,136	)	$	0	$	1,393
Unrealized gain (loss) on postretirement benefits plan		(1,153	)		(64	)		0		(1,217	)
Unrealized loss on interest rate swap		(477	)		180			0		(297	)
Total	$	1,899		$	(2,020	)	$	0	$	(121	)

		Balance			Comprehensive			Reclassification of Disproportionate		Balance
		1/1/15			Income (Loss)			Tax Effect		12/31/15
Unrealized gains (losses) on securities available for sale	$	2,736		$	793		$	0	$	3,529
Unrealized gain (loss) on postretirement benefits plan		(1,063	)		(90	)		0		(1,153	)
Unrealized loss on interest rate swap		(614	)		137			0		(477	)
Total	$	1,059		$	840		$	0	$	1,899