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Note 5. Earnings Per Common Share (Tables) | 3 Months Ended
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Mar. 31, 2012
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] |
|  | Three Months Ended March 31,
|  | 2012 |  | 2011
Numerator |  |  |  |
Net income |  | $ | 12,572 |  |  | $ | 43,357 |
Preferred stock dividends |  | (138 | ) |  | (138 | )
Net income applicable to common shares for basic and diluted earnings per share |  | $ | 12,434 |  |  | $ | 43,219 |
Denominator |  |  |  |
Basic weighted average common shares |  | 285,292 |  |  | 278,448 |
Dilutive stock options and restricted stock |  | 11,636 |  |  | 17,796 |
Diluted weighted average common shares |  | 296,928 |  |  | 296,244 |
Basic earnings per common share |  |  |  |
Net income applicable to common shares |  | $ | 0.04 |  |  | $ | 0.16 |
Diluted earnings per common share |  |  |  |
Net income applicable to common shares |  | $ | 0.04 |  |  | $ | 0.15 |

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- Definition Tabular disclosure of the numerators and the denominators of the basic and diluted per-share (or per-unit) computations for income from continuing operations, including the effect that has been given to preferred dividends. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration