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Premises and Equipment (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Premises and equipment [Line Items] |  |  |
Premises and Equipment, Gross | $ 45,410,887 | $ 45,497,179 |
Accumulated Depreciation | (20,494,781) | (19,746,944) |
Premises and Equipment | 24,916,106 | 25,750,235 |
Depreciation | 1,676,820 | 1,790,041 | 2,140,735
Rental expense | 447,000 | 376,000 | 377,000
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] |  |  |
2013 | 131,978 |  |
2014 | 52,138 |  |
2015 | 42,000 |  |
2016 and After | 84,000 |  |
Total future minimum payments | 310,116 |  |
Land [Member] |  |  |
Premises and equipment [Line Items] |  |  |
Premises and Equipment, Gross | 7,780,167 | 7,780,167 |
Building [Member] |  |  |
Premises and equipment [Line Items] |  |  |
Premises and Equipment, Gross | 23,758,761 | 23,662,849 |
Furniture and Equipment [Member] |  |  |
Premises and equipment [Line Items] |  |  |
Premises and Equipment, Gross | 12,923,699 | 12,982,160 |
Leasehold Improvements [Member] |  |  |
Premises and equipment [Line Items] |  |  |
Premises and Equipment, Gross | 948,260 | 994,637 |
Construction in Progress [Member] |  |  |
Premises and equipment [Line Items] |  |  |
Premises and Equipment, Gross | $ 0 | $ 77,366 |

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