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Note 9 - Basic And Diluted Earnings Per Common Share: (Tables) | 6 Months Ended
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Jun. 30, 2012
Schedule of Earnings Per Share Reconciliation [Table Text Block] |
|  | Three months ended June 30, 2012 |  |  | Three months ended June 30, 2011 |  |  | Six months ended June 30, 2012 |  |  | Six months ended June 30, 2011 |
Numerator for basic and diluted earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |
Net income for the period |  | $ | 695,998 |  |  | $ | 565,659 |  |  | $ | 2,359,617 |  |  | $ | 1,293,605 |
Denominator for basic and diluted earnings per common share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average number of common shares outstanding |  |  | 45,912,458 |  |  |  | 53,444,841 |  |  |  | 47,003,016 |  |  |  | 53,441,276 |
Effect of outstanding stock options |  |  | 3,536,972 |  |  |  | 2,354,594 |  |  |  | 3,200,147 |  |  |  | 2,343,722 |
Diluted weighted average number of shares outstanding |  |  | 49,449,430 |  |  |  | 55,796,435 |  |  |  | 50,203,163 |  |  |  | 55,784,998 |
Basic earnings per common share |  | $ | 0.02 |  |  | $ | 0.01 |  |  | $ | 0.05 |  |  | $ | 0.02 |
Diluted earnings per common share |  | $ | 0.01 |  |  | $ | 0.01 |  |  | $ | 0.05 |  |  | $ | 0.02 |

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- Definition Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to diluted earnings per share (or unit). + 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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