Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Consolidated Statements of Comprehensive Income
Net income	$ 6,261	$ 5,146	$ 15,750	$ 9,573
Unrealized holding (losses) gains on available-for-sale securities arising during the period	(1,391)	6,596	(10,199)	10,827
Related tax benefit (expense)	392	(2,650)	2,876	(4,325)
Holding (losses) gains after tax on available-for-sale securities	(999)	3,946	(7,323)	6,502
Less: Reclassification adjustment for the net gains (losses) realized during the period
Net realized gains (losses)	312	(131)	347	(267)
Income tax (expense) benefit on net realized gains (losses)	(88)	52	(98)	106
Net realized gains (losses) after tax	(224)	79	(249)	161
Other comprehensive (loss) income on available-for-sale securities	(1,223)	4,025	(7,572)	6,663
Changes in fair value of derivatives used for cashflow hedges	515	(613)	1,794	(464)
Related tax benefit	(145)	245	(507)	184
Other comprehensive income on cashflow hedges	370	(368)	1,287	(280)
Total other comprehensive (loss) income	(853)	3,657	(6,285)	6,383
Total comprehensive income	$ 5,408	$ 8,803	$ 9,465	$ 15,956

Amount after tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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Amount before tax, after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss), attributable to parent entity.

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Amount of tax expense (benefit), after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss), attributable to parent entity.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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