Investment Securities, Gain Loss And Other Disclosures (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Gain (Loss) on Investments [Line Items]
Number of investment securities held	337
Number of loss positions less than twelve months	17
Number of loss positions in twelve months or more	23
Securities pledged to secure public deposits, FHLB borrowings, and other government agency deposits as required by law	$ 329,000,000	$ 334,800,000
Government Agency Government Sponsored Entities [Member]
Gain (Loss) on Investments [Line Items]
Unrealized losses	0	0	0
Mortgage Backed Securities [Member]
Gain (Loss) on Investments [Line Items]
Unrealized losses	2,900,000	7,600,000	7,800,000
Obligations of States and Political Subdivisions [Member]
Gain (Loss) on Investments [Line Items]
Period for which financial problems are experienced by certain municipalities	6 years
Percentage of bank qualified municipal bond portfolio rated (in hundredths)	96.00%
Percentage of portfolio not rated (in hundredths)	4.00%
Unrealized losses	90,000	627,000	531,000
Corporate Securities [Member]
Gain (Loss) on Investments [Line Items]
Unrealized losses	15,000	147,000	267,000
Municipal Bonds [Member]
Gain (Loss) on Investments [Line Items]
Unrealized losses	$ 375,000