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Securities (Details 4) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2012 | Dec. 31, 2011
--- | --- | ---
Estimated Fair Value Less than 12 months | $ 2,597 | $ 3,317
Unrealized Losses Less than 12 months | (12) | (5)
Estimated Fair Value 12 months or longer | 1,355 | 1,361
Unrealized Losses 12 months or longer | (3,852) | (3,853)
Total Estimated Fair Value | 3,952 | 4,678
Total unrealized losses | (3,864) | (3,858)
Number of securities Unrealized Losses Less than 12 months | 3 | 2
Number of securities Unrealized Losses 12 months or longer | 4 | 4
Number of securities Total unrealized losses | 7 | 6
US Government-sponsored Enterprises Debt Securities [Member] |  |
Estimated Fair Value Less than 12 months | 0 | 1,287
Unrealized Losses Less than 12 months | 0 | (3)
Estimated Fair Value 12 months or longer | 0 | 0
Unrealized Losses 12 months or longer | 0 | 0
Total Estimated Fair Value | 0 | 1,287
Total unrealized losses | 0 | (3)
Collateralized Mortgage Backed Securities [Member] |  |
Estimated Fair Value Less than 12 months | 2,597 | 2,030
Unrealized Losses Less than 12 months | (12) | (2)
Estimated Fair Value 12 months or longer | 0 | 0
Unrealized Losses 12 months or longer | 0 | 0
Total Estimated Fair Value | 2,597 | 2,030
Total unrealized losses | (12) | (2)
Collateralized Debt Obligations [Member] |  |
Estimated Fair Value Less than 12 months | 0 | 0
Unrealized Losses Less than 12 months | 0 | 0
Estimated Fair Value 12 months or longer | 1,355 | 1,361
Unrealized Losses 12 months or longer | (3,852) | (3,853)
Total Estimated Fair Value | 1,355 | 1,361
Total unrealized losses | (3,852) | (3,853)
Municipal Bonds [Member] |  |
Estimated Fair Value Less than 12 months | 0 | 0
Unrealized Losses Less than 12 months | 0 | 0
Estimated Fair Value 12 months or longer | 0 | 0
Unrealized Losses 12 months or longer | 0 | 0
Total Estimated Fair Value | 0 | 0
Total unrealized losses | $ 0 | $ 0

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- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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