Document and Entity Information - shares	3 Months Ended
	Dec. 31, 2015	Feb. 08, 2016
Document and Entity Information:
Entity Registrant Name	Southern Missouri Bancorp Inc
Document Type	10-Q
Document Period End Date	Dec. 31, 2015
Trading Symbol	smbc
Amendment Flag	false
Entity Central Index Key	0000916907
Current Fiscal Year End Date	--06-30
Entity Common Stock, Shares Outstanding		7,438,416
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2