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Note 5 - Earnings Per Common Share | 3 Months Ended
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Mar. 31, 2013
Earnings Per Share [Text Block] | Note 5. Earnings Per Common Share We are authorized to issue 500,000,000 shares of common stock, $0.25 par value per share, of which 285,163,224 shares were issued and outstanding at March 31, 2013. The following table reconciles weighted average common shares used in the computations of basic and diluted earnings per share for the three-month periods ended March 31, 2013 and 2012 (thousands, except per-share amounts):
|  | Three Months Ended March 31, |
|  | 2013 |  |  | 2012 |
Numerator |  |  |  |  |  |  |  |
Net income |  | $ | 11,094 |  |  | $ | 12,572 |
Preferred stock dividends |  |  | (138 | ) |  |  | (138 | )
Net income applicable to common shares for basic and diluted earnings per share |  | $ | 10,956 |  |  | $ | 12,434 |
Denominator |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 285,171 |  |  |  | 285,292 |
Dilutive stock options and restricted stock |  |  | 11,993 |  |  |  | 11,636 |
Diluted weighted average common shares |  |  | 297,164 |  |  |  | 296,928 |
Basic earnings per common share |  |  |  |  |  |  |  |
Net income applicable to common shares |  | $ | 0.04 |  |  | $ | 0.04 |
Diluted earnings per common share |  |  |  |  |  |  |  |
Net income applicable to common shares |  | $ | 0.04 |  |  | $ | 0.04 |
Diluted income per share for the three months ended March 31, 2013 and 2012 excludes the potential effects of outstanding shares of our convertible preferred stock, as their conversion and exercise would have no effect on the calculation of dilutive shares. Options to purchase 537,005 shares of our common stock were excluded from the computation of diluted earnings per share for the three-month period ended March 31, 2013. For the three-month period ended March 31, 2012, options to purchase 823,668 shares of our common stock were excluded from the computation of diluted earnings per share. In each case, the exercise price of the options not included in the computations of diluted earnings per share exceeded the average price of our stock during those periods and therefore would not affect the calculation of earnings per share.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=16381557&loc=d3e4984-109258 Reference 3: 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 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -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 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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