Investment Securities, Gain Loss And Other Disclosures (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 Security	Dec. 31, 2012
Gain (Loss) on Investments [Line Items]
Number of investment securities held	352
Number of loss positions less than twelve months	72
Number of loss positions in twelve months or more	2
Percentage of bank qualified municipal bond portfolio rated (in hundredths)	93.00%
Percentage of portfolio not rated (in hundredths)	7.00%
Securities pledged to secure public deposits, FHLB borrowings, and other government agency deposits as required by law	$ 334,800,000	$ 296,900,000
Government Agency Government Sponsored Entities [Member]
Gain (Loss) on Investments [Line Items]
Unrealized losses	0	0
Mortgage Backed Securities [Member]
Gain (Loss) on Investments [Line Items]
Unrealized losses	7,600,000	10,000
Obligations of States and Political Subdivisions [Member]
Gain (Loss) on Investments [Line Items]
Unrealized losses	627,000	3,000
Corporate Securities [Member]
Gain (Loss) on Investments [Line Items]
Unrealized losses	$ 147,000	$ 12,000