Note 11: Subordinated Debt (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended	12 Months Ended
	Aug. 31, 2014	Oct. 31, 2013	Dec. 31, 2019	Jun. 30, 2020
Ozarks Legacy Community Financial, Inc.
Assumed floating rate junior subordinated debt securities		$ 3,100
Ozarks Legacy Community Financial, Inc. | Reported Value Measurement
Assumed floating rate junior subordinated debt securities			$ 2,700	$ 2,600
Peoples Service Company, Inc.
Assumed floating rate junior subordinated debt securities	$ 6,500
Peoples Service Company, Inc. | Reported Value Measurement
Assumed floating rate junior subordinated debt securities			$ 5,200	$ 5,200