v3.26.1
Summary of significant accounting policies - Earnings (Loss) Per Share (Details)
3 Months Ended
Jul. 31, 2025
Mar. 31, 2026
USD ($)
$ / shares
shares
Mar. 31, 2025
USD ($)
$ / shares
shares
Numerator:      
Net (loss) income attributable to FGI Industries Ltd. shareholders - basic | $   $ (969,405) $ (629,092)
Net (loss) income attributable to FGI Industries Ltd. shareholders - diluted | $   $ (969,405) $ (629,092)
Denominator:      
Weighted-average number of ordinary shares outstanding - basic (in shares) [1]   1,920,619 1,915,797
Potentially dilutive shares from outstanding options/warrants (in shares)   0 0
Weighted-average number of ordinary shares outstanding - diluted (in shares) [1]   1,920,619 1,915,797
Earnings (loss) per share      
Earnings (loss) per share - basic (in dollars per share) | $ / shares [1]   $ (0.50) $ (0.33)
Earnings (loss) per share - diluted (in dollars per share) | $ / shares [1]   $ (0.50) $ (0.33)
Reverse stock split ratio 0.2 0.2  
[1] Giving retroactive effect to the Reverse Share Split of the Preference Shares and Ordinary Shares at a ratio of 1-for-5 that became effective July 31, 2025. See Note 9 “Shareholders' Equity” for details.