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Note 10 - Loss Per Common Share - Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018
Loss attributable to common shareholders | $ (628) | $ (6,624)
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 | $ (15,219) | $ (6,624)
Loss per share: |  |
Weighted average common shares outstanding, basic (in shares) | 1,313,102 | 781,027
Weighted average common shares outstanding, diluted (in shares) | 1,313,102 | 781,027
Loss per share, basic and diluted (in dollars per share) | $ (11.59) | $ (8.48)
Warrant [Member] |  |
Loss per share: |  |
Dilutive securities (in shares) |  |
Preferred Stock [Member] | Series E Preferred Stock [Member] |  |
Loss per share: |  |
Dilutive securities (in shares) |  |

X
- Definition Represents the amount of net income (loss) available to common stockholders, basic, including dividends on shares and deemed dividends for beneficial conversion feature. + References No definition available. + Details
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- Definition The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or loss for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=117326831&loc=d3e1337-109256 + Details
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