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Consolidated Statements of Shareholders' Equity (USD $) | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Total
--- | --- | --- | --- | ---
Balance at Dec. 31, 2010 | $ 930,067 | $ 236,279,931 | $ (18,515,006) | $ 218,694,992
Balance (in Shares) at Dec. 31, 2010 | 31,002,211 |  |  |
Net income (loss) |  |  | 1,115,989 | 1,115,989
Issuance of restricted shares for stock incentive award and share-based compensation | 4,950 | 563,539 |  | 568,489
Issuance of restricted shares for stock incentive award and share-based compensation (in Shares) | 165,000 |  |  |
Dividends declared |  |  | (8,457,722) | (8,457,722)
Balance at Dec. 31, 2011 | 935,017 | 236,843,470 | (25,856,739) | 211,921,748
Balance (in Shares) at Dec. 31, 2011 | 31,167,211 |  |  |
Net income (loss) |  |  | (13,198,741) | (13,198,741)
Issuance of shares in “Rights Offering Program, net of issuance costs” | 415,562 | 14,252,617 |  | 14,668,179
Issuance of shares in “Rights Offering Program, net of issuance costs” (in Shares) | 13,852,094 |  |  |
Issuance of restricted shares for stock incentive award and share-based compensation | 9,009 | 662,372 |  | 671,381
Issuance of restricted shares for stock incentive award and share-based compensation (in Shares) | 300,300 |  |  |
Dividends declared |  |  | (4,436,421) | (4,436,321)
Balance at Dec. 31, 2012 | 1,359,588 | 251,758,459 | (43,491,901) | 209,626,146
Balance (in Shares) at Dec. 31, 2012 | 45,319,605 |  |  |
Net income (loss) |  |  | (103,424,827) | (103,424,827)
Issuance of restricted shares for stock incentive award and share-based compensation | 12,110 | 556,224 |  | 568,334
Issuance of restricted shares for stock incentive award and share-based compensation (in Shares) | 403,650 |  |  |
Dividends declared |  |  | (2,067,571) | (2,067,571)
Balance at Dec. 31, 2013 | $ 1,371,698 | $ 252,314,683 | $ (148,984,299) | $ 104,702,082
Balance (in Shares) at Dec. 31, 2013 | 45,723,255 |  |  |

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