Note 12: Business Combinations (Details) $ in Thousands	3 Months Ended
Sep. 30, 2017 USD ($)
Details
Business Acquisition, Name of Acquired Entity	Southern Missouri Bancshares, Inc. (“Bancshares”), and its wholly-owned subsidiary, Southern Missouri Bank of Marshfield
Business Acquisition, Description of Acquired Entity	The acquired financial institution is expected to be merged with and into Southern Bank simultaneously with the acquisition of Bancshares in the first quarter of calendar year 2018.
Business Acquisition, Transaction Costs	$ 75

With respect to a business combination completed during the period, this element provides a description of the business, other than the name, which may include the industry, size, products and other important information.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

Name:	us-gaap_BusinessAcquisitionDescriptionOfAcquiredEntity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration