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Note 2: Investments in Debt and Equity Securities: Credit Losses Recognized On Investments Policy: Schedule of Other than Temporary Impairment, Credit Losses Recognized in Earnings (Details) (Accumulated Credit Losses, USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Accumulated Credit Losses
    
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Beginning Balance $ 3,598 $ 2,983
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Additions, No Previous Impairment 680 615
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Reductions, Securities Sold (102)  
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held, Ending Balance $ 4,176 $ 3,598