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Condensed Parent Company Only Financial Statements - Condensed Balance Sheets (Detail) (USD $) | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
--- | --- | --- | --- | ---
ASSETS |  |  |  |
Cash and due from banks | $ 1,570,411 | $ 2,736,486 |  |
Other assets | 1,843,043 | 2,580,118 |  |
Total assets | 541,248,126 | 617,855,135 |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Shareholders' equity | 41,840,688 | 49,567,798 | 50,549,660 | 67,172,188
Total liabilities and shareholders' equity | 541,248,126 | 617,855,135 |  |
Parent Company [Member] |  |  |  |
ASSETS |  |  |  |
Cash and due from banks | 1,734,335 | 2,382,695 |  |
Investment in subsidiaries | 49,931,446 | 56,601,461 |  |
Other assets | 200,563 | 286,506 |  |
Total assets | 51,866,344 | 59,270,662 |  |
LIABILITIES AND SHAREHOLDERS' EQUITY |  |  |  |
Borrowings | 8,248,000 | 8,248,000 |  |
Accrued expenses and other liabilities | 1,777,656 | 1,454,864 |  |
Shareholders' equity | 41,840,688 | 49,567,798 |  |
Total liabilities and shareholders' equity | $ 51,866,344 | $ 59,270,662 |  |

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