Investment Securities (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012 Investment	Dec. 31, 2011 Investment
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months	20	10
Available-for-sale Securities, Less than 12 months, Fair Value	$ 16,063	$ 22,877
Available-for-sale Securities, Less than 12 Months, Unrealized losses	77	105
Number of investments, 12 months or longer
Available-for-sale Securities, 12 months or longer, Fair Value
Available-for-sale Securities, 12 Months or Longer, Unrealized losses
Number of investments, Total	20	10
Available-for-sale Securities, Fair Value, Total	16,063	22,877
Available-for-sale Securities, Unrealized Losses, Total	77	105
US Agency securities [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months	1
Available-for-sale Securities, Less than 12 months, Fair Value	3,771
Available-for-sale Securities, Less than 12 Months, Unrealized losses	10
Number of investments, 12 months or longer
Available-for-sale Securities, 12 months or longer, Fair Value
Available-for-sale Securities, 12 Months or Longer, Unrealized losses
Number of investments, Total	1
Available-for-sale Securities, Fair Value, Total	3,771
Available-for-sale Securities, Unrealized Losses, Total	10
SBA securities [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months	1
Available-for-sale Securities, Less than 12 months, Fair Value	2,015
Available-for-sale Securities, Less than 12 Months, Unrealized losses	5
Number of investments, 12 months or longer
Available-for-sale Securities, 12 months or longer, Fair Value
Available-for-sale Securities, 12 Months or Longer, Unrealized losses
Number of investments, Total	1
Available-for-sale Securities, Fair Value, Total	2,015
Available-for-sale Securities, Unrealized Losses, Total	5
States and Political Subdivisions [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months	16	1
Available-for-sale Securities, Less than 12 months, Fair Value	6,608	500
Available-for-sale Securities, Less than 12 Months, Unrealized losses	48	2
Number of investments, 12 months or longer
Available-for-sale Securities, 12 months or longer, Fair Value
Available-for-sale Securities, 12 Months or Longer, Unrealized losses
Number of investments, Total	16	1
Available-for-sale Securities, Fair Value, Total	6,608	500
Available-for-sale Securities, Unrealized Losses, Total	48	2
Mortgage Backed Securities [Member] \| FHLMC [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months		1
Available-for-sale Securities, Less than 12 months, Fair Value		2,602
Available-for-sale Securities, Less than 12 Months, Unrealized losses		31
Number of investments, 12 months or longer
Available-for-sale Securities, 12 months or longer, Fair Value
Available-for-sale Securities, 12 Months or Longer, Unrealized losses
Number of investments, Total		1
Available-for-sale Securities, Fair Value, Total		2,602
Available-for-sale Securities, Unrealized Losses, Total		31
Mortgage Backed Securities [Member] \| FNMA [Member]
Summary of gross unrealized losses on investment securities and fair market value of related securities
Number of investments, Less than 12 months	2	8
Available-for-sale Securities, Less than 12 months, Fair Value	3,669	19,775
Available-for-sale Securities, Less than 12 Months, Unrealized losses	14	72
Number of investments, 12 months or longer
Available-for-sale Securities, 12 months or longer, Fair Value
Available-for-sale Securities, 12 Months or Longer, Unrealized losses
Number of investments, Total	2	8
Available-for-sale Securities, Fair Value, Total	3,669	19,775
Available-for-sale Securities, Unrealized Losses, Total	$ 14	$ 72

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Number of investments in continuous unrealized loss position, less than twelve months.

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Number of investments in continuous unrealized loss position twelve months or longer.

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Amount of the excess of amortized cost basis over fair value of securities that have been in a loss position for twelve months or longer for securities which are categorized neither as held-to-maturity nor trading securities.

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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.

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