Investment Securities (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Dec. 31, 2011
Investment [Line Items]
Fair value of investments reported at less than historical cost	$ 109,700,000		$ 109,700,000		$ 67,500,000
Percentage of Bank portfolio	41.90%		41.90%		25.90%
Proceeds from sales of securities - available for sale	$ 5,800,000	$ 7,700,000	$ 13,383,000	$ 23,226,000
Gross realized gain on sale of securities	126,000	253,000,000	$ 366,000	569,000,000
Gross realized losses on sale of securities		$ 42,000		$ 207,000
Percentage of recovery estimate depository institutions			10.00%
Percentage of recovery estimate insurance companies			15.00%
Pooled Trust Preferred Securities [Member]
Investment [Line Items]
Current par balance	3,800,000		$ 3,800,000
Original Par	$ 4,000,000		$ 4,000,000			$ 4,000,000