Stockholders Equity Parenthetical (Parentheticals) (USD $)	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Dividends Paid, per Share	$ 0.74	$ 0.71
Stock Dividends, in Shares	320,553	468,795
Stock Options Exercised, in shares	67,831	40,986
Shares Issued Under the Directors Stock Plan - Shares	3,667	3,634
Shares Issued Under the Employee Stock Purchase Plan - Shares	14,913	14,744
Shares Issued for Dividend Reinvestment Plans - Shares	55,870	56,097
Purchase of Treasury Stock - Shares	127,983	160,445
Acquisition of Subsidiary - Shares	9,356	224,641
Allocation of ESOP Stock - Shares	12,291	18,216