Consolidated Statements of Changes in Shareholders' Equity (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Dividends declared per share (in dollars per share)	$ 0.16	$ 0.15
Treasury stock issued for restricted awards, net of forfeitures	0	3,989
Forfeitures of restricted stock, shares	19,599	11,477
Retained Earnings [Member]
Dividends declared per share (in dollars per share)	$ 0.16	$ 0.15
Treasury stock issued for restricted awards, net of forfeitures	0	3,989
Forfeitures of restricted stock, shares	19,599	11,477
Treasury Stock [Member]
Treasury stock issued for restricted awards, net of forfeitures	0	3,989
Forfeitures of restricted stock, shares	19,599	11,477