Securities (Gains (Losses) on the sales of debt securities and credit losses for OTTI of investments) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Gain (Loss) on Investments [Line Items]
Gross Realized (Losses)		$ (37,000)
Net Gains (Losses)			(358,000)	627,000
Debt Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	0	5,000	1,183,000	2,500,000
Gross Realized (Losses)	0	(42,000)	(1,162,000)	(1,541,000)
OTTI Credit Losses	0	0	0	(649,000)
Net Gains (Losses)	$ 0	$ (37,000)	$ 21,000	$ 310,000