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Securities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Available for sale [Abstract] |  |
Amortized Cost | $ 188,356 | $ 170,848
Gross Unrealized Gains | 3,946 | 4,379
Gross Unrealized Losses | 798 | 309
Fair Value | 191,504 | 174,918
Amortized cost of single maturity securities available for sale [Abstract] |  |
Due in one year or less | 16,688 |
Due after one year through five years | 12,096 |
Due after five years through ten years | 11,987 |
Due after ten years | 144,165 |
No maturity | 3,420 |
Amortized Cost | 188,356 |
Fair value of single maturity securities available for sale [Abstract] |  |
Due in one year or less | 16,893 |
Due after one year through five years | 12,549 |
Due after five years through ten years | 12,875 |
Due after ten years | 145,931 |
No maturity | 3,256 |
Fair Value | 191,504 | 174,918
U.S. Treasury [Member] |  |
Available for sale [Abstract] |  |
Amortized Cost | 2,005 | 2,010
Gross Unrealized Gains | 68 | 140
Gross Unrealized Losses | 0 | 0
Fair Value | 2,073 | 2,150
Fair value of single maturity securities available for sale [Abstract] |  |
Fair Value | 2,073 | 2,150
U.S. Government Agencies and Corporations [Member] |  |
Available for sale [Abstract] |  |
Amortized Cost | 128,805 | 94,716
Gross Unrealized Gains | 1,381 | 1,307
Gross Unrealized Losses | 622 | 20
Fair Value | 129,564 | 96,003
Fair value of single maturity securities available for sale [Abstract] |  |
Fair Value | 129,564 | 96,003
State and Political Subdivisions [Member] |  |
Available for sale [Abstract] |  |
Amortized Cost | 35,029 | 47,118
Gross Unrealized Gains | 1,753 | 2,034
Gross Unrealized Losses | 3 | 30
Fair Value | 36,779 | 49,122
Fair value of single maturity securities available for sale [Abstract] |  |
Fair Value | 36,779 | 49,122
Mortgage-Backed Securities [Member] |  |
Available for sale [Abstract] |  |
Amortized Cost | 4,202 | 7,156
Gross Unrealized Gains | 367 | 569
Gross Unrealized Losses | 0 | 0
Fair Value | 4,569 | 7,725
Fair value of single maturity securities available for sale [Abstract] |  |
Fair Value | 4,569 | 7,725
Corporate Debt Securities [Member] |  |
Available for sale [Abstract] |  |
Amortized Cost | 14,207 | 15,852
Gross Unrealized Gains | 368 | 322
Gross Unrealized Losses | 0 | 97
Fair Value | 14,575 | 16,077
Fair value of single maturity securities available for sale [Abstract] |  |
Fair Value | 14,575 | 16,077
Federal Home Loan Bank Stock - Restricted [Member] |  |
Available for sale [Abstract] |  |
Amortized Cost | 1,597 | 1,574
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 1,597 | 1,574
Fair value of single maturity securities available for sale [Abstract] |  |
Fair Value | 1,597 | 1,574
Federal Reserve Bank Stock - Restricted [Member] |  |
Available for sale [Abstract] |  |
Amortized Cost | 92 | 92
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | 0 | 0
Fair Value | 92 | 92
Fair value of single maturity securities available for sale [Abstract] |  |
Fair Value | 92 | 92
Other Securities [Member] |  |
Available for sale [Abstract] |  |
Amortized Cost | 2,419 | 2,330
Gross Unrealized Gains | 9 | 7
Gross Unrealized Losses | 173 | 162
Fair Value | 2,255 | 2,175
Fair value of single maturity securities available for sale [Abstract] |  |
Fair Value | $ 2,255 | $ 2,175

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