v3.25.1
Document and Entity Information - shares
6 Months Ended
Mar. 31, 2025
May 02, 2025
Details    
Registrant CIK 0000775057  
Fiscal Year End --09-30  
Registrant Name ALTEX INDUSTRIES INC  
SEC Form 10-Q  
Period End date Mar. 31, 2025  
Tax Identification Number (TIN) 84-0989164  
Number of common stock shares outstanding   11,229,520
Filer Category Non-accelerated Filer  
Current with reporting Yes  
Interactive Data Current Yes  
Shell Company false  
Small Business true  
Emerging Growth Company false  
Document Quarterly Report true  
Document Transition Report false  
Securities Act File Number 1-9030  
Entity Incorporation, State or Country Code DE  
Entity Address, Address Line One 700 Colorado Blvd #273  
Entity Address, City or Town Denver  
Entity Address, State or Province CO  
Entity Address, Postal Zip Code 80206  
City Area Code 303  
Local Phone Number 265-9312  
Amendment Flag false  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2