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Note 21: Stock Option Plan: Schedule of Fair Value Option Pricing Model Assumptions (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Details      
Fair Value Assumptions, Expected Dividend Payments $ 0.72 $ 0.72 $ 0.72
Fair Value Assumptions, Risk Free Interest Rate 1.53% 0.65% 0.93%
Fair Value Assumptions, Expected Term, Simplified Method 5 years 5 years 5 years
Fair Value Assumptions, Expected Volatility Rate 24.80% 28.83% 27.99%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 5.22 $ 4.55 $ 3.15