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Business Combination & Asset Purchase (Details Textual) (USD $) | 12 Months Ended |
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Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2007 | Jul. 09, 2010
Business Combination & Asset Purchase (Textual) [Abstract] |  |  |  |  |
Deposits at close included in purchase |  |  |  |  | $ 28,000,000
Loans included in purchase |  |  |  |  | 14,000,000
Number of years amortized on straight line basis |  |  |  | 7 years |
Number of years amortized over an estimated remaining economic useful life of deposits | 7 years |  |  |  |
Amortization expense | 312,000 | 312,000 | 235,000 |  |
Knisely [Member] |  |  |  |  |
Business Combination & Asset Purchase (Additional Textual) [Abstract] |  |  |  |  |
Recognition of core deposit intangible asset with acquired purchase |  |  |  | 1,100,000 |
Hicksville [Member] |  |  |  |  |
Business Combination & Asset Purchase (Additional Textual) [Abstract] |  |  |  |  |
Recognition of core deposit intangible asset with acquired purchase | $ 1,090,000 |  |  |  |

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