The following table presents the changes in accumulated other comprehensive income (loss) by component net of tax for the three and six month periods ended June 30, 2018 and 2017:


(Dollars in thousands)	Pretax			Tax Effect			After-tax
Three months ended June 30, 2018
Balance as of March 31, 2018	$	(2,165	)	$	454		$	(1,711	)
Unrealized holding loss on available-for-sale securities arising during the period		(156	)		33			(123	)
Amortization of held-to-maturity discount resulting from transfer		20			(4	)		16

Total other comprehensive income		(136	)		29			(107	)

Balance as of June 30, 2018	$	(2,301	)	$	483		$	(1,818	)

Six months ended June 30, 2018
Balance as of December 31, 2017	$	(839	)	$	176		$	(663	)
Unrealized holding loss on available-for-sale securities arising during the period		(1,539	)		323			(1,216	)
Reclassify equity AOCI gain to retained earnings		36			(7	)		29
Amortization of held-to-maturity discount resulting from transfer		41			(9	)		32

Total other comprehensive income		(1,462	)		307			(1,155	)

Balance as of June 30, 2018	$	(2,301	)	$	483		$	(1,818	)

Three months ended June 30, 2017
Balance as of March 31, 2017	$	(821	)	$	278		$	(543	)
Unrealized holding gain on available-for-sale securities arising during the period		916			(312	)		604
Amortization of held-to-maturity discount resulting from transfer		26			(9	)		17

Total other comprehensive income		942			(321	)		621

Balance as of June 30, 2017	$	121		$	(43	)	$	78

Six months ended June 30, 2017
Balance as of December 31, 2016	$	(1,323	)	$	449		$	(874	)
Unrealized holding gain on available-for-sale securities arising during the period		1,386			(471	)		915
Amortization of held-to-maturity discount resulting from transfer		58			(21	)		37

Total other comprehensive income		1,444			(492	)		952

Balance as of June 30, 2017	$	121		$	(43	)	$	78