Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2016	Nov. 08, 2016
Document and Entity Information:
Entity Registrant Name	Southern Missouri Bancorp Inc
Document Type	10-Q
Document Period End Date	Sep. 30, 2016
Trading Symbol	smbc
Amendment Flag	false
Entity Central Index Key	0000916907
Current Fiscal Year End Date	--06-30
Entity Common Stock, Shares Outstanding		7,436,266
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q1