Note 23: Accumulated Other Comprehensive Income: Schedule of Amounts Reclassified Out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Reclassifications Out of Accumulated Other Comprehensive Income	$ 1	$ 1,390	$ 158
Affected Line Item in the Statements of Income | Net realized gains on available-for-sale securities (total reclassified amount before tax)
Unrealized gains on available-for-sale securities reclassified out of AOCI	2	2,139	243
Affected Line Item in the Statements of Income | Tax (expense) benefit
Income taxes on unrealized gains on available-for-sale securities reclassified out of AOCI	$ (1)	$ (749)	$ (85)