Consolidated Statements Of Changes In Shareholders' Equity (Parenthetical) - $ / shares	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Common Stock, Dividends, Per Share, Declared	$ 0.40	$ 0.36
Acquisition of treasury stock, shares	15,521
Treasury shares issued under dividend reinvestment plan, shares	15,372
Treasury shares issued under stock option plan, shares	188	4,518
Common stock issued under stock option plans, shares	500
Common Stock [Member]
Common stock issued under dividend reinvestment plan, shares	25,230	18,507