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Consolidated Statements Of Changes In Stockholders' Equity (USD $) | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Loss [Member] | Total
--- | --- | --- | --- | --- | ---
BALANCE at Dec. 31, 2010 | $ 421,144 | $ 34,491,370 | $ 56,769,816 | $ (285,637) | $ 91,396,693
BALANCE, Shares at Dec. 31, 2010 | 8,422,890 |  |  |  |
Net income (loss) |  |  | 9,797,866 |  | 9,797,866
Issuance of common stock under Employee Stock Purchase Plan | 515 | 151,761 |  |  | 152,276
Issuance of common stock under Employee Stock Purchase Plan, Shares | 10,308 |  |  |  |
Issuance of common stock to Employee Stock Ownership Plan | 1,125 | 314,902 |  |  | 316,027
Issuance of common stock to Employee Stock Ownership Plan, Shares | 22,493 |  |  |  |
Issuance of common stock under Employee Stock Option Plan | 450 | 72,450 |  |  | 72,900
Issuance of common stock under Employee Stock Option Plan, Shares | 9,000 |  |  |  |
Issuance of common stock under Executive Stock Plan | 105 | 31,974 |  |  | 32,079
Issuance of common stock under Executive Stock Plan, Shares | 2,083 |  |  |  |
Tax benefit from non-qualified stock options |  | 21,920 |  |  | 21,920
Share-based compensation |  | 448,896 |  |  | 448,896
Shareholder dividends |  |  | (5,101,340) |  | (5,101,340)
Other comprehensive income (loss) |  |  |  | 393,243 | 393,243
BALANCE at Dec. 31, 2011 | 423,339 | 35,533,273 | 61,466,342 | 107,606 | 97,530,560
BALANCE, Shares at Dec. 31, 2011 | 8,466,774 |  |  |  |
Net income (loss) |  |  | 2,238,114 |  | 2,238,114
Issuance of common stock under Employee Stock Purchase Plan | 692 | 171,078 |  |  | 171,770
Issuance of common stock under Employee Stock Purchase Plan, Shares | 13,849 |  |  |  |
Issuance of common stock to Employee Stock Ownership Plan | 1,807 | 506,391 |  |  | 508,198
Issuance of common stock to Employee Stock Ownership Plan, Shares | 36,145 |  |  |  |
Issuance of common stock under Non-Employee Stock Option Plan | 600 | 84,983 |  |  | 85,583
Issuance of common stock under Non-Employee Stock Option Plan, Shares | 12,000 |  |  |  |
Issuance of common stock under Executive Stock Plan | 808 | 39,503 |  |  | 40,311
Issuance of common stock under Executive Stock Plan, Shares | 16,156 |  |  |  |
Tax benefit from non-qualified stock options |  | 67,835 |  |  | 67,835
Share-based compensation |  | 302,964 |  |  | 302,964
Purchase of common stock | (3,501) | (301,509) | (452,941) |  | (757,951)
Purchase of common stock, Shares | (70,028) |  |  |  |
Shareholder dividends |  |  | (5,496,336) |  | (5,496,336)
Other comprehensive income (loss) |  |  |  | (695,654) | (695,654)
BALANCE at Dec. 31, 2012 | 423,745 | 36,404,518 | 57,755,178 | (588,048) | 93,995,393
BALANCE, Shares at Dec. 31, 2012 | 8,474,896 |  |  |  |
Net income (loss) |  |  | (957,888) |  | (957,888)
Issuance of common stock under Employee Stock Purchase Plan | 849 | 172,354 |  |  | 173,203
Issuance of common stock under Employee Stock Purchase Plan, Shares | 16,977 |  |  |  |
Issuance of common stock to Employee Stock Ownership Plan | 2,230 | 461,589 |  |  | 463,819
Issuance of common stock to Employee Stock Ownership Plan, Shares | 44,598 |  |  |  |
Issuance of common stock under Non-Employee Stock Option Plan | 750 | 109,500 |  |  | 110,250
Issuance of common stock under Non-Employee Stock Option Plan, Shares | 15,000 |  |  |  |
Issuance of common stock under Executive Stock Plan | 92 | 27,312 |  |  | 27,404
Issuance of common stock under Executive Stock Plan, Shares | 1,849 |  |  |  |
Tax benefit from non-qualified stock options |  | 16,284 |  |  | 16,284
Share-based compensation |  | (80,886) |  |  | (80,886)
Shareholder dividends |  |  | (5,473,572) |  | (5,473,572)
Other comprehensive income (loss) |  |  |  | 348,036 | 348,036
BALANCE at Dec. 31, 2013 | $ 427,666 | $ 37,110,671 | $ 51,323,718 | $ (240,012) | $ 88,622,043
BALANCE, Shares at Dec. 31, 2013 | 8,553,320 |  |  |  |

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