CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Common stock dividends, per share	$ 0.18	$ 0.14
Stock option plan, shares	6,671
Employee stock purchase plan, shares	5,650	6,349
Restricted stock, shares	41,140	43,151