Stockholders Equity Parenthetical (Parentheticals) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Dividends Paid, per Share, in dollars per share	$ 0.74	$ 0.72
Stock Dividends - Shares, in shares	328,323	321,886
Stock Options Exercised, in shares	45,742	66,498
Shares Issued Under the Directors Stock Plan - Shares, in shares	4,255	3,667
Shares Issued Under the Employee Stock Purchase Plan - Shares, in shares	14,668	14,913
Shares Issued for Dividend Reinvestment Plans - Shares, in shares	33,539	55,870
Purchase of Treasury Stock - Shares, in shares	61,075	127,983
Acquisition of Subsidiary - Shares, in shares	9,503	9,356
Allocation of ESOP Stock - Shares, in shares	16,969	12,291