Note 2: Investments in Securities: Certain investments in debt securities reported at less than historical cost (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Details
Fair value investments reported less than historical cost	$ 89,700	$ 104,500
Fair value investments reported less than historical cost percentage of investment portfolio	50.00%	48.80%

Represents the Fair value investments reported less than historical cost percentage of investment portfolio, as of the indicated date.

No definition available.

Name:	fil_FairValueInvestmentsReportedLessThanHistoricalCostPercentageOfInvestmentPortfolio
Namespace Prefix:	fil_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant