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Note 13. Income (Loss) per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2011
Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] |
|  | Year ended December 31,
|  | 2011 |  |  | 2010 |  |  | 2009
Numerator |  |  |  |  |  |  |  |
Net income |  | $ | 151,164 |  |  | $ | 48,983 |  |  | $ | 67,826 |
Preferred stock dividends |  |  | (552 | ) |  |  | (13,633 | ) |  |  | (13,633 | )
Net income (loss) applicable to common shares |  | $ | 150,612 |  |  | $ | 35,350 |  |  | $ | 54,193 |
Denominator |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 280,956 |  |  |  | 251,146 |  |  |  | 224,933 |
Dilutive stock options, restricted stock, and warrants |  |  | 16,077 |  |  |  | 18,455 |  |  |  | 8,685 |
Diluted weighted average common shares |  |  | 297,033 |  |  |  | 269,601 |  |  |  | 233,618 |
Basic earnings per common share |  | $ | 0.54 |  |  | $ | 0.14 |  |  | $ | 0.24 |
Diluted earnings per common share |  | $ | 0.51 |  |  | $ | 0.13 |  |  | $ | 0.23 |
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
|  | Year ended December 31, |
|  | 2011 |  | 2010 |  | 2009 |
Stock options |  |  | 552,388 |  |  |  | 596,388 |  |  |  | 1,022,240 |  |
Warrants to purchase common shares |  |  | — |  |  |  | — |  |  |  | 12,173,913 |  |
Total potential dilutive common shares |  |  | 552,388 |  |  |  | 596,388 |  |  |  | 13,196,153 |  |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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 -Topic 260 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph (a) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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