Investment Securities (Schedule of OTTI Charges) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Investment Securities [Abstract]
One Trust Preferred Security			$ 3,000
One variable private rate label CMO	484	18	360
Two Pooled Trust Preferred Securities	68		1,818
Principal losses on variable rate CMO	318	324	398
Total other-than-temporary impairment charges	870	342	5,576
Total other-than-temporary impairment charges	870	342	8,953
Net other-than-temporary impairment losses on investment securities	$ 870	$ 342	$ 5,576

The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Statement of Financial Accounting Standard (FAS)

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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- Definition

The amount of other than temporary impairment (OTTI) losses on equity securities, OTTI related to credit losses on debt securities, and OTTI losses on debt securities when the entity intends to sell the securities or it is more likely than not that the entity will be required to sell the securities before recovery of its amortized cost basis. Additionally, this item includes OTTI losses recognized during the period on investments accounted for under the cost method of accounting.

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