v3.26.1
Organization and nature of business (Details)
 6 Months Ended
Mar. 31, 2026
Jan. 13, 2026
Aug. 06, 2025
Mar. 31, 2025
Oct. 31, 2024
FAMI          
Entity Incorporation, Date of Incorporation July 28, 2015        
Entity Incorporation, State Country Name Cayman        
Principal Activities Holding company        
Farmmi International          
Entity Incorporation, Date of Incorporation August 20, 2015        
Entity Incorporation, State Country Name Hong Kong        
Ownership 100.00%        
Principal Activities Holding company        
Farmmi Enterprise          
Entity Incorporation, Date of Incorporation May 23, 2016        
Entity Incorporation, State Country Name Zhejiang, China        
Ownership 100.00%        
Principal Activities Holding company        
Farmmi Health Development          
Entity Incorporation, Date of Incorporation September 17, 2021        
Entity Incorporation, State Country Name Zhejiang, China        
Ownership 100.00%        
Principal Activities Holding company        
Zhejiang Suyuan Agricultural          
Entity Incorporation, Date of Incorporation July 25, 2022        
Entity Incorporation, State Country Name Zhejiang, China        
Ownership 100.00%        
Principal Activities Holding company        
Farmmi E-Commerce          
Entity Incorporation, Date of Incorporation March 22, 2019        
Entity Incorporation, State Country Name Zhejiang, China        
Ownership 100.00%        
Principal Activities Agriculture products        
Suppchains Oak          
Entity Incorporation, Date of Incorporation August 6, 2025        
Entity Incorporation, State Country Name New Jersey, USA        
Ownership 100.00%   100.00%    
Principal Activities Trading        
Suppchains Transport          
Entity Incorporation, Date of Incorporation October 31, 2024        
Entity Incorporation, State Country Name California, USA        
Ownership 100.00%       100.00%
Principal Activities Trading        
Farmmi Healthcare          
Entity Incorporation, Date of Incorporation September 18, 2021        
Entity Incorporation, State Country Name Zhejiang, China        
Ownership 100.00%        
Principal Activities Medical health        
Jiangxi Xiangbo          
Entity Incorporation, Date of Incorporation June 18, 2021        
Entity Incorporation, State Country Name Jiangxi, China        
Ownership 100.00%        
Principal Activities Holding company        
Yudu Yada          
Entity Incorporation, Date of Incorporation November 10, 2010        
Entity Incorporation, State Country Name Jiangxi, China        
Ownership 100.00%        
Principal Activities Forestry development        
Yitang Mediservice          
Entity Incorporation, Date of Incorporation September 7, 2021        
Entity Incorporation, State Country Name Zhejiang, China        
Ownership 100.00%     100.00%  
Principal Activities Medical services        
Yiting Meditech          
Entity Incorporation, Date of Incorporation September 17, 2021        
Entity Incorporation, State Country Name Zhejiang, China        
Ownership 100.00%        
Principal Activities Medical technology        
Farmmi Eco Agri          
Entity Incorporation, Date of Incorporation May 27, 2022        
Entity Incorporation, State Country Name Zhejiang, China        
Ownership 100.00%        
Principal Activities Agriculture products        
Farmmi USA          
Entity Incorporation, Date of Incorporation April 20, 2023        
Entity Incorporation, State Country Name California, USA        
Ownership 100.00%        
Principal Activities Agriculture products        
SuppChains          
Entity Incorporation, Date of Incorporation July 23, 2024        
Entity Incorporation, State Country Name California, USA        
Ownership 75.00%        
Principal Activities Trading        
Bluesage          
Entity Incorporation, Date of Incorporation January 13, 2026        
Entity Incorporation, State Country Name California, USA        
Ownership 100.00% 100.00%      
Principal Activities Trading