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Note 8 - Basic And Diluted Earnings Per Common Share: (Tables) | 3 Months Ended
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Mar. 31, 2013
Schedule of Earnings Per Share Reconciliation [Table Text Block] |
|  | Three months ended March 31, 2013 |  |  | Three months ended March 31, 2012 |
Numerator for basic and diluted earnings per common share: |  |  |  |  |  |
Net income (loss) for the period |  | $ | 76,579 |  |  | $ | 1,663,619 |
Denominator for basic and diluted earnings per common share: |  |  |  |  |  |  |  |
Basic weighted average number of common shares outstanding |  |  | 40,331,438 |  |  |  | 46,221,465 |
Effect of outstanding stock options |  |  | 3,979,885 |  |  |  | 2,732,986 |
Diluted weighted average number of shares outstanding |  |  | 44,311,323 |  |  |  | 48,954,451 |
Basic earnings (loss) per common share |  | $ | 0.00 |  |  | $ | 0.04 |
Diluted earnings (loss) per common share |  | $ | 0.00 |  |  | $ | 0.03 |

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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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Namespace Prefix: | us-gaap_
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Period Type: | duration