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Note 4 - Earnings Per Share (Tables) | 3 Months Ended
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Mar. 31, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | 2014 |  |  | 2013 |
Net income |  | $ | 1,854,412 |  |  | $ | 1,586,321 |
Numerator for basic and diluted earnings per share |  | $ | 1,854,412 |  |  | $ | 1,586,321 |
Denominator for basic earnings per share – weighted-average shares |  |  | 10,198,733 |  |  |  | 10,162,442 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Stock options |  |  | 39,193 |  |  |  | 31,777 |
Restricted stock |  |  | 1,579 |  |  |  | - |
Warrants |  |  | - |  |  |  | - |
Dilutive potential common shares |  |  | 40,772 |  |  |  | 31,777 |
Denominator for diluted earnings per share – weighted-average shares |  |  | 10,239,505 |  |  |  | 10,194,219 |
Basic earnings per share |  | $ | 0.18 |  |  | $ | 0.16 |
Diluted earnings per share |  | $ | 0.18 |  |  | $ | 0.16 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + 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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