Consolidated Statements of Changes in Stockholders' Equity (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Stockholders' Equity [Abstract]
Tax effect of unrealized gain (loss) on securities available for sale	$ (613)	$ (119)	$ 71
Tax effect of reclassification adjustment for net security gain, included in net income	5		13
Tax effect of amortization of unrealized gain on securities available for sale transferred to securities held to maturity included in net income	184	178	168
Tax effect of unrealized loss on interest rate swap	29	116	287
Tax effect of reclassification adjustment of interest rate swap settlements included in earnings	$ 73	$ 68	$ 72
Percentage stock dividend		5.00%
Cash dividend per share	$ 0.78	$ 0.742	$ 0.705