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Note 11: Securities Sold Under Reverse Repurchase Agreements and Short-term Borrowings: Schedule of Repurchase Agreements (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Maturity Overnight and on Demand | Mortgage-backed Securities, Issued by US Government Sponsored Enterprises    
Securities Sold under Agreements to Repurchase, Fair Value of Collateral $ 110,082 $ 80,531