Note 12: Business Combinations: Business Combinations Policy (Policies)	9 Months Ended
Mar. 31, 2019
Gideon Bancshares Company
Business Combinations Policy	On November 21, 2018, the Company completed its acquisition of Gideon Bancshares Company (“Gideon”), and its wholly owned subsidiary, First Commercial Bank (“First Commercial”), in a stock and cash transaction. Upon completion of the Merger, each share of Gideon common stock was converted into the right to receive $72.48 in cash, as well as 2.04 shares of Southern Missouri common stock, with cash payable in lieu of fractional Southern Missouri shares (the “Merger Consideration”). The Company issued an aggregate of 317,225 shares of common stock for the stock portion of the Merger Consideration and paid an aggregate of approximately $11.3 million for the cash portion of the Merger Consideration. The conversion of data systems took place on December 8, 2018. The Company acquired First Commercial primarily for the purpose of conducting commercial banking activities in markets where it believes the Company’s business model will perform well, and for the long-term value of its core deposit franchise. Through March 31, 2019, the Company incurred $873,000 of third-party acquisition-related costs with $243,000 and $798,000 being included in noninterest expense in the Company's consolidated statement of income for the three- and nine- month periods ended March 31, 2019, respectively, and $75,000 included in the prior fiscal year.

Disclosure of accounting policy for completed business combinations (purchase method, acquisition method or combination of entities under common control). This accounting policy may include a general discussion of the purchase method or acquisition method of accounting (including for example, the treatment accorded contingent consideration, the identification of assets and liabilities, the purchase price allocation process, how the fair values of acquired assets and liabilities are determined) and the entity's specific application thereof. An entity that acquires another entity in a leveraged buyout transaction generally discloses the accounting policy followed by the acquiring entity in determining the basis used to value its interest in the acquired entity, and the rationale for that accounting policy.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 05
-Paragraph 4
-Subparagraph (a)-(d)
-URI http://asc.fasb.org/extlink&oid=6909625&loc=d3e227-128457

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790

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