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Note 5 - Earnings Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2013
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2013 |  |  | 2012 |  |  | 2013 |  |  | 2012 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) |  | $ | (24,858 | ) |  | $ | 2,524 |  |  | $ | (13,764 | ) |  | $ | 15,096 |
Preferred stock dividends |  |  | (138 | ) |  |  | (138 | ) |  |  | (276 | ) |  |  | (276 | )
Net income (loss) applicable to common shares for basic and diluted earnings per share |  | $ | (24,996 | ) |  | $ | 2,386 |  |  | $ | (14,040 | ) |  | $ | 14,820 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 303,566 |  |  |  | 285,312 |  |  |  | 294,317 |  |  |  | 285,303 |
Dilutive stock options and restricted stock |  |  | — |  |  |  | 9,848 |  |  |  | — |  |  |  | 10,797 |
Diluted weighted average common shares |  |  | 303,566 |  |  |  | 295,160 |  |  |  | 294,317 |  |  |  | 296,100 |
Basic earnings (loss) per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) applicable to common shares |  | $ | (0.08 | ) |  | $ | 0.01 |  |  | $ | (0.05 | ) |  | $ | 0.05 |
Diluted earnings (loss) per common share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income (loss) applicable to common shares |  | $ | (0.08 | ) |  | $ | 0.01 |  |  | $ | (0.05 | ) |  | $ | 0.05 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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