Investment Securities, Gain Loss And Other Disclosures (Details) (USD $)	9 Months Ended									9 Months Ended
	Sep. 30, 2014 Security	Dec. 31, 2013	Sep. 30, 2013	Sep. 30, 2014 Government Agency Government Sponsored Entities [Member]	Dec. 31, 2013 Government Agency Government Sponsored Entities [Member]	Sep. 30, 2013 Government Agency Government Sponsored Entities [Member]	Sep. 30, 2014 Mortgage Backed Securities [Member]	Dec. 31, 2013 Mortgage Backed Securities [Member]	Sep. 30, 2013 Mortgage Backed Securities [Member]	Sep. 30, 2014 Obligations of States and Political Subdivisions [Member]	Dec. 31, 2013 Obligations of States and Political Subdivisions [Member]	Sep. 30, 2013 Obligations of States and Political Subdivisions [Member]	Sep. 30, 2014 Corporate Securities [Member]	Dec. 31, 2013 Corporate Securities [Member]	Sep. 30, 2013 Corporate Securities [Member]	Jun. 30, 2014 Municipal Bonds [Member]
Gain (Loss) on Investments [Line Items]
Number of investment securities held	280
Number of loss positions less than twelve months	15
Number of loss positions in twelve months or more	12
Period for which financial problems are experienced by certain municipalities										5 years
Percentage of bank qualified municipal bond portfolio rated (in hundredths)										96.00%
Percentage of portfolio not rated (in hundredths)										4.00%
Unrealized losses				$ 0	$ 0	$ 0	$ 2,400,000	$ 7,600,000	$ 5,800,000	$ 17,000	$ 627,000	$ 741,000	$ 0	$ 147,000	$ 185,000	$ 375,000
Securities pledged to secure public deposits, FHLB borrowings, and other government agency deposits as required by law	$ 360,000,000	$ 334,800,000	$ 310,500,000