Consolidated Condensed Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 4,007	$ 3,206
Other Comprehensive Income (Loss)
Net unrealized holding gain (loss) on securities available for sale	(4,931)	715
Reclassification adjustment for realized gains included in net income	(154)	(129)
Other comprehensive income, before tax, total	(5,085)	586
Income tax (benefit) expense related to other comprehensive income	1,079	(195)
Other comprehensive income (loss), net of tax	(4,006)	391
Comprehensive Income	$ 1	$ 3,597

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 other comprehensive income (loss).

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

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Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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