Note 10: Advances From Federal Home Loan Bank: Federal Home Loan Bank, Advances (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Advances from Federal Home Loan Banks	$ 240,000	$ 127,500
Due in 2018
Advances from Federal Home Loan Banks	$ 240,000	$ 127,500
Federal Home Loan Bank, Advances, Weighted Average Interest Rate	2.18%	1.53%

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

Name:	us-gaap_AdvancesFromFederalHomeLoanBanks
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant