XML 168 R153.htm IDEA: XBRL DOCUMENT v3.3.1.900
Note 2: Investments in Securities: Certain investments in debt securities reported at less than historical cost (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Details    
Fair value investments reported less than historical cost $ 76,000 $ 106,000
Fair value investments reported less than historical cost percentage of investment portfolio 28.90% 29.00%