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Note 19 - Loss Per Share - Consolidated Earnings Per Share (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Loss from continuing operations | $ (2,507,679) | $ (5,972,363)
(Gain)/loss attributable to noncontrolling interest | 3,423 | (292,518)
Deemed dividends on preferred stock and amortization of beneficial conversion feature | 4,380,292 |
Loss from continuing operations attributable to Yunhong CTI Ltd common shareholders | (6,891,394) | (5,679,845)
Loss from discontinued operations | (1,743,182) | (2,102,084)
(Gain)/loss attributable to noncontrolling interest | 135,202 | (1,239,611)
Loss from discontinued operations attributable to Yunhong CTI Ltd common shareholders | $ (1,878,384) | $ (862,473)
Continuing operations (in dollars per share) | $ (1.46) | $ (1.48)
Discontinued operations (in dollars per share) | (0.40) | (0.22)
Earnings Per Share, Basic and Diluted, Total | $ (1.77) | $ (1.70)
Basic and Diluted weighted average number of shares and equivalent shares of common stock outstanding (in shares) | 4,705,741 | 3,835,950

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