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Note 10 - Loss Per Common Share (Tables) | 6 Months Ended
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Jun. 30, 2019
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Six months ended June 30,
|  | 2018 |  | 2019
Income: |  |  |  |  |  |  |  |
Loss attributable to common shareholders |  |  | (6,624 | ) |  |  | (628 | )
Less: Deemed dividend for beneficial conversion feature of Series E Shares |  |  | - |  |  |  | (9,339 | )
Less: Dividend equivalents on Series E Shares related to redemption value |  |  | - |  |  |  | (4,223 | )
Less: Dividend of Series E Shares |  |  | - |  |  |  | (1,029 | )
Loss attributable to common shareholders |  |  | (6,624 | ) |  |  | (15,219 | )
Loss per share: |  |  |  |  |  |  |  |
Weighted average common shares outstanding, basic |  |  | 781,027 |  |  |  | 1,313,102 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
2014 Warrants |  |  | - |  |  |  | - |
Series E Shares |  |  | - |  |  |  | - |
Weighted average common shares outstanding, diluted |  |  | 781,027 |  |  |  | 1,313,102 |
Loss per share, basic and diluted |  |  | (8.48 | ) |  |  | (11.59 | )
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] |
|  | Six months ended June 30,
|  | 2018 |  | 2019
2014 Warrants |  |  | - |  |  |  | 71,533 |
Series E Shares |  |  | - |  |  |  | 1,135,488 |
Potentially dilutive securities |  |  | - |  |  |  | 1,207,021 |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -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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