CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement Of Stockholders Equity [Abstract]
Balance at beginning of period	$ 53,879	$ 52,830	$ 52,411	$ 52,453
Net income	1,522	1,247	2,938	2,609
Other comprehensive income (loss)	332	(2,202)	876	(2,694)
Stock options exercised 451 and 574 shares issued in 2014 and 2013	(1)	8	(1)	8
Cash dividends declared	(493)	(492)	(985)	(985)
Balance at end of period	$ 55,239	$ 51,391	$ 55,239	$ 51,391
Cash dividends declared per share	$ 0.18	$ 0.18	$ 0.36	$ 0.36