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Note 14 - Loss Per Common Share (Tables) | 12 Months Ended
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Dec. 31, 2020
Notes Tables |
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] |
|  | Year ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Numerator |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (16,790 | ) |  | $ | (99,557 | ) |  | $ | (26,563 | )
Preferred stock dividends |  |  | (552 | ) |  |  | (552 | ) |  |  | (552 | )
Net loss applicable to common shares |  | $ | (17,342 | ) |  | $ | (100,109 | ) |  | $ | (27,115 | )
Denominator |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average common shares |  |  | 527,329 |  |  |  | 490,449 |  |  |  | 433,419 |
Dilutive stock options, restricted stock units, and warrants |  |  | — |  |  |  | — |  |  |  | — |
Diluted weighted average common shares |  |  | 527,329 |  |  |  | 490,449 |  |  |  | 433,419 |
Basic loss per common share |  | $ | (0.03 | ) |  | $ | (0.20 | ) |  | $ | (0.06 | )
Diluted loss per common share |  | $ | (0.03 | ) |  | $ | (0.20 | ) |  | $ | (0.06 | )

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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