Note 9 - Earnings Per Share - Amounts Used in Computing Earnings Per Share (Details) - USD ($)	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Net Income/(Loss) attributable to LiqTech International Inc.	$ 39,616	$ (3,814,528)
Weighted average number of common shares used in basic earnings per share (in shares)	19,652,277	15,960,909
Effect of dilutive securities, stock options and warrants (in shares)	15,475
Weighted average number of common shares and potential dilutive common shares outstanding used in dilutive earnings per share (in shares)	19,667,752	15,960,909

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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