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Note 3 - Average Common Shares Outstanding Used to Compute Earnings (Loss) Per Share (Tables) | 6 Months Ended
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Jun. 30, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30, |  |  | June 30, |
|  | 2014 |  |  | 20 13 |  |  | 2014 |  |  | 2013 |
Basic and diluted |  |  | 18,766,909 |  |  |  | 18,698,856 |  |  |  | 18,757,273 |  |  |  | 18,685,971 |
Potentially dilutive |  |  | 71,172 |  |  |  | 128,591 |  |  |  | 71,172 |  |  |  | 128,591 |

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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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