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Note 18 - Earnings Per Share - Consolidated Earnings Per Share (Details) - USD ($)
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Basic    
Weighted average number of shares outstanding during the period (in shares) 3,578,885 3,568,885
Earnings Per Share, Basic:    
Net (loss)/income attributable to CTI Industries Corporation $ (3,585,709) $ (1,603,103)
Amount for per share Computation $ (3,585,709) $ (1,603,103)
Net (loss)/income per share applicable to Common Shares (in dollars per share) $ (1) $ (0.45)
Diluted    
Weighted average number of shares outstanding during the period (in shares) 3,578,885 3,568,885
Weighted averages shares Outstanding Common stock equivalents (options, warrants) (in shares) 47,359
Weighted average number of shares outstanding during the period (in shares) 3,578,885 3,616,244
Earnings Per Share, Diluted:    
Net (loss)/income attributable to CTI Industries Corporation $ 3,585,709 $ (1,603,103)
Amount for per share computation $ (3,585,709) $ (1,603,103)
Net (loss)/ income per share applicable to Common Shares (in dollars per share) $ (1) $ (0.44)