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Note 12 - Stockholders's Equity: (Tables) | 6 Months Ended
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Jun. 30, 2012
Schedule of Stockholders Equity [Table Text Block] |
|  | Common Stock |  |  | Additional Paid in |  |  |  |  |  | Total Stockholders’ |
|  | Shares |  |  | Amount |  |  | Capital |  |  | Deficit |  |  | equity |
Balances, March 31, 2012 |  |  | 46,221,465 |  |  | $ | 9,952,314 |  |  | $ | 36,700,388 |  |  | $ | (20,270,366) |  |  | $ | 26,382,336 |
Exercise of stock options |  |  | 378,936 |  |  |  | 504,375 |  |  |  | (285,375 | ) |  |  | — |  |  |  | 219,000 |
Repurchase and cancellation of shares – Normal Course Issuer Bid |  |  | (1,115,304) |  |  |  | (223,061) |  |  |  | (1,368,682 | ) |  |  | — |  |  |  | (1,591,743) |
Cancellation of Restricted Stock Awards |  |  | (100) |  |  |  | —— |  |  |  |  |  |  |  | — |  |  |  | — |
Stock-based compensation |  |  | — |  |  |  | — |  |  |  | 63,096 |  |  |  | — |  |  |  | 63,096 |
Net income for the period |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 695,998 |  |  |  | 695,998 |
Balances, June 30, 2012 |  |  | 45,484,997 |  |  | $ | 10,233,628 |  |  | $ | 35,109,427 |  |  | $ | (19,574,368) |  |  | $ | 25,768,687 |
|  | Common Stock |  |  | Additional Paid in |  |  |  |  |  | Total Stockholders’ |
|  | Shares |  |  | Amount |  |  | Capital |  |  | Deficit |  |  | equity |
Balances, December 31, 2011 |  |  | 53,497,584 |  |  | $ | 11,358,959 |  |  | $ | 40,994,013 |  |  | $ | (21,933,985) |  |  | $ | 30,418,987 |
Exercise of stock options |  |  | 673,153 |  |  |  | 611,777 |  |  |  | (262,065) |  |  |  | — |  |  |  | 349,712 |
Repurchase and cancellation of shares – Dutch Auction |  |  | (7,570,236) |  |  |  | (1,514,047) |  |  |  | (4,379,400) |  |  |  | — |  |  |  | (5,893,447 | )
Repurchase and cancellation of shares – Normal Course Issuer Bid |  |  | (1,115,304) |  |  |  | (223,061) |  |  |  | (1,368,682) |  |  |  | — |  |  |  | (1,591,743) |
Cancellation of Restricted Stock Awards |  |  | (200) |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Stock-based compensation |  |  | — |  |  |  | — |  |  |  | 125,561 |  |  |  | — |  |  |  | 125,561 |
Net income for the period |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2,359,617 |  |  |  | 2,359,617 |
Balances, June 30, 2012 |  |  | 45,484,997 |  |  | $ | 10,233,628 |  |  | $ | 35,109,427 |  |  | $ | (19,574,368) |  |  | $ | 25,768,687 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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