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Note 6: Investment Securities: Schedule of Held-to-maturity Securities (Details) (States and political subdivisions, USD $)
Mar. 31, 2013
Dec. 31, 2012
States and political subdivisions
   
Held to Maturity Securities Amortized Cost $ 920 $ 920
Held to Maturity Securities Gross Unrealized Gains 160 164
Held-to-maturity Securities, Debt Maturities, Fair Value $ 1,080 $ 1,084
Held to Maturity Securities Tax Equivalent Yield 7.37% 7.37%