Document and Entity Information - shares	9 Months Ended
	Jun. 30, 2017	Jul. 21, 2017
Document and Entity Information:
Entity Registrant Name	ALTEX INDUSTRIES INC
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Trading Symbol	altx
Amendment Flag	false
Entity Central Index Key	0000775057
Current Fiscal Year End Date	--09-30
Entity Common Stock, Shares Outstanding		12,644,452
Entity Filer Category	Smaller Reporting Company
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3