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Securities (Details 4) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 Securities | Dec. 31, 2011 Securities
--- | --- | ---
Estimated Fair Value, Less than 12 months | $ 9,116 | $ 3,317
Unrealized Losses, Less than 12 months | (50) | (5)
Estimated Fair Value, 12 months or longer | 1,392 | 1,361
Unrealized Losses, 12 months or longer | (3,816) | (3,853)
Estimated Fair Value, Total | 10,508 | 4,678
Unrealized Losses, Total | (3,866) | (3,858)
Number of securities, Unrealized Losses, Less than 12 months | 14 | 2
Number of securities, Unrealized Losses, 12 months or longer | 4 | 4
Number of securities, Unrealized Losses, Total | 18 | 6
US Government-Sponsored Enterprises Debt Securities [Member] |  |
Estimated Fair Value, Less than 12 months | 3,492 | 1,287
Unrealized Losses, Less than 12 months | (7) | (3)
Estimated Fair Value, 12 months or longer | 0 | 0
Unrealized Losses, 12 months or longer | 0 | 0
Estimated Fair Value, Total | 3,492 | 1,287
Unrealized Losses, Total | (7) | (3)
Collateralized Mortgage Backed Securities [Member] |  |
Estimated Fair Value, Less than 12 months | 2,294 | 2,030
Unrealized Losses, Less than 12 months | (15) | (2)
Estimated Fair Value, 12 months or longer | 0 | 0
Unrealized Losses, 12 months or longer | 0 | 0
Estimated Fair Value, Total | 2,294 | 2,030
Unrealized Losses, Total | (15) | (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 | 1,392 | 1,361
Unrealized Losses, 12 months or longer | (3,816) | (3,853)
Estimated Fair Value, Total | 1,392 | 1,361
Unrealized Losses, Total | (3,816) | (3,853)
Municipal Bonds [Member] |  |
Estimated Fair Value, Less than 12 months | 3,330 | 0
Unrealized Losses, Less than 12 months | (28) | 0
Estimated Fair Value, 12 months or longer | 0 | 0
Unrealized Losses, 12 months or longer | 0 | 0
Estimated Fair Value, Total | 3,330 | 0
Unrealized Losses, Total | $ (28) | $ 0

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