Consolidated Condensed Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 2,481us-gaap_NetIncomeLoss	$ 2,020us-gaap_NetIncomeLoss
Other comprehensive income:
Net unrealized holding gain on securities available-for-sale	1,040	2,681
Net unrealized gain on securities available-for-sale for which a portion of an other-than-temporary impairment has been recognized in income		634
Reclassification adjustment for realized gains included in net income	(240)	(150)
Net unrealized gain on derivative used for cash flow hedges	15	32
Other comprehensive income (loss), before tax, total	815	3,197
Income tax (expense) related to other comprehensive income	(280)us-gaap_OtherComprehensiveIncomeLossTax	(1,098)us-gaap_OtherComprehensiveIncomeLossTax
Other comprehensive income, net of tax	535	2,099
Comprehensive Income	$ 3,016us-gaap_ComprehensiveIncomeNetOfTax	$ 4,119us-gaap_ComprehensiveIncomeNetOfTax

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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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

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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).

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

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Amount before tax of other than temporary impairment (OTTI) on investment in available-for-sale debt security, recognized in other comprehensive loss, attributable to parent entity.

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