Investment Securities Held-to-maturity Securities by Maturities (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investments [Abstract]
Federal income tax rate	35.00%	35.00%	34.30%
Schedule of Held-to-maturity Securities
Amortized cost of securities maturing within 1 year	$ 0
Amortized cost of securities maturing in 1-5 years	0
Amortized cost of securities maturing in 5-10 years	861
Amortized cost of securities maturing in over 10 years	48,361
Total amortized cost	49,222	45,275
Fair value of securities maturing within 1 year	0
Fair value of securities maturing in 1-5 years	0
Fair value of securities maturing in 5-10 years	823
Fair value of securities maturing in over 10 years	45,271
Fair Value	46,094	47,124
Average yield of securities maturing within 1 year	0.00%
Average yield of securities maturing in 1-5 years	0.00%
Average yield of securities maturing in 5-10 years	2.60%
Average yield of securities maturing in over 10 years	2.80%
Total average yield	2.80%
States and political subdivisions
Schedule of Held-to-maturity Securities
Amortized cost of securities maturing within 1 year	0
Amortized cost of securities maturing in 1-5 years	0
Amortized cost of securities maturing in 5-10 years	334
Amortized cost of securities maturing in over 10 years	3,516
Total amortized cost	3,850	3,860
Fair value of securities maturing within 1 year	0
Fair value of securities maturing in 1-5 years	0
Fair value of securities maturing in 5-10 years	322
Fair value of securities maturing in over 10 years	3,607
Fair Value	3,929	4,250
Residential mortgage-backed securities
Schedule of Held-to-maturity Securities
Amortized cost of securities maturing within 1 year	0
Amortized cost of securities maturing in 1-5 years	0
Amortized cost of securities maturing in 5-10 years	527
Amortized cost of securities maturing in over 10 years	37,009
Total amortized cost	37,536	33,494
Fair value of securities maturing within 1 year	0
Fair value of securities maturing in 1-5 years	0
Fair value of securities maturing in 5-10 years	501
Fair value of securities maturing in over 10 years	34,029
Fair Value	34,530	34,560
Commercial mortgage-backed securities
Schedule of Held-to-maturity Securities
Amortized cost of securities maturing within 1 year	0
Amortized cost of securities maturing in 1-5 years	0
Amortized cost of securities maturing in 5-10 years	0
Amortized cost of securities maturing in over 10 years	7,836
Total amortized cost	7,836	7,921
Fair value of securities maturing within 1 year	0
Fair value of securities maturing in 1-5 years	0
Fair value of securities maturing in 5-10 years	0
Fair value of securities maturing in over 10 years	7,635
Fair Value	$ 7,635	$ 8,314

Held-to-maturity Securities, Debt Maturities, Average Yield

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Held-to-maturity Securities, Debt Maturities, Next Rolling Twelve Months, Amortized Cost before Other than Temporary Impairment

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Held-to-maturity Securities, Debt Maturities, Next Rolling Twelve Months, Average Yield

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Held-to-maturity Securities, Debt Maturities, Rolling after Ten Years, Amortized Cost before Other than Temporary Impairment

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Held-to-maturity Securities, Debt Maturities, Rolling after Ten Years, Average Yield

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Held-to-maturity Securities, Debt Maturities, Rolling Year Six Through Ten, Amortized Cost before Other than Temporary Impairment

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Held-to-maturity Securities, Debt Maturities, Rolling Year Six Through Ten, Average Yield

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Held-to-maturity Securities, Debt Maturities, Rolling Year Two Through Five, Amortized Cost before Other than Temporary Impairment

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Held-to-maturity Securities, Debt Maturities, Rolling Year Two Through Five, Average Yield

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

-Topic 740

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Amount before other than temporary impairment (OTTI) accretion, of investments in debt securities classified as held-to-maturity.

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Amount of held-to-maturity debt securities at fair value maturing in the next rolling twelve months following the latest balance sheet presented.

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Amount of held-to-maturity debt securities at fair value maturing after the tenth rolling twelve months following the latest balance sheet presented.

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Amount of held-to-maturity debt securities at fair value maturing in the sixth rolling twelve months through the tenth rolling twelve months following the latest balance sheet presented.

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Amount of held-to-maturity debt securities at fair value maturing in the second rolling twelve months through the fifth rolling twelve months following the latest balance sheet presented.

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Fair value of investments in debt securities classified as held-to-maturity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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