Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statements Of Comprehensive Income (Loss) [Abstract]
Net income	$ 6,625us-gaap_NetIncomeLoss	$ 5,120us-gaap_NetIncomeLoss	$ 3,862us-gaap_NetIncomeLoss
Unrealized gain (loss) on securities available for sale:
Unrealized holding gain (loss) arising during the period, pretax	2,731	(3,829)	573
Tax (expense) benefit	(929)	1,303	(195)
Reclassification of realized gain	(230)		(363)
Tax expense	78		122
Other comprehensive income (loss)	1,650	(2,526)	137
Comprehensive income	$ 8,275us-gaap_ComprehensiveIncomeNetOfTax	$ 2,594us-gaap_ComprehensiveIncomeNetOfTax	$ 3,999us-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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