Note 17: Acquisitions: Business Combinations Policy: Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Feb. 23, 2018	Jun. 17, 2017	Jun. 30, 2018	Jun. 30, 2017
Common stock, $.01 par value; 12,000,000 shares authorized; 8,996,584 and 8,591,363 shares issued, respectively, at June 30, 2018 and June 30, 2017			$ 90	$ 86
Southern Missouri Bancshares, Inc.
Cash Acquired from Acquisition	$ 3,860
Common stock, $.01 par value; 12,000,000 shares authorized; 8,996,584 and 8,591,363 shares issued, respectively, at June 30, 2018 and June 30, 2017	12,955
Business Combination, Contingent Consideration, Asset	16,815
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents	2,359
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Interest Bearing Time Deposits	1,450
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities	5,557
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables	68,258
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment	3,409
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Bank Owned Life Insurance	2,271
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets	1,345
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other	1,897
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Deposits	(68,152)
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Federal Home Loan Bank Advances	(5,344)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other	(681)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net	12,369
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net	$ 4,446		$ 4,400
Tammcorp, Inc.
Cash Acquired from Acquisition		$ 11,109
Common stock, $.01 par value; 12,000,000 shares authorized; 8,996,584 and 8,591,363 shares issued, respectively, at June 30, 2018 and June 30, 2017		10,965
Business Combination, Contingent Consideration, Asset		22,074
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents		9,373
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Interest Bearing Time Deposits		747
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities		9,104
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables		152,169
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment		7,520
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Bank Owned Life Insurance		3,970
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets		4,100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other		2,240
Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Deposits		(166,780)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other		(795)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net		17,998
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net		4,076
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable		$ (3,650)