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Securities (Gains (Losses) on the sales of debt securities and credit losses for OTTI of investments) (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	$ 12,000	$ 309,000	$ 996,000
Gross Realized (Losses)	(572,000)
Debt Securities [Member]
Gain (Loss) on Investments [Line Items]
Gross Realized Gains	626,000	309,000	2,495,000	976,000
Gross Realized (Losses)	(614,000)	0	(1,499,000)	(633,000)
OTTI Credit Losses	0	(315,000)	(649,000)	(315,000)
Net Gains (Losses)	$ 12,000	$ (6,000)	$ 347,000	$ 28,000

The amount of other than temporary impairment losses on investments in debt and equity securities categorized as Available-for-sale which have been recognized in earnings during the period. Such impairment losses consist of other than temporary impairments (OTTI) on equity securities, credit losses on investments in debt securities, and when the entity intends to sell an impaired debt security or it is more likely than not that the entity will be required to sell the impaired debt security before recovery of its amortized cost basis.

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