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Note 3 - Average Common Shares Outstanding Used to Compute Net Loss Per Share (Tables) | 9 Months Ended
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Sep. 30, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Basic and diluted |  |  | 18,778,187 |  |  |  | 18,712,284 |  |  |  | 18,764,271 |  |  |  | 18,694,775 |
Potentially dilutive |  |  | 67,448 |  |  |  | 110,193 |  |  |  | 67,448 |  |  |  | 110,193 |

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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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