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Note 10: Retirement Plans: 401(k) Plans (Details) (USD $)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Description of Defined Contribution Pension and Other Postretirement Plans The Company has three 401(k) savings plans covering all eligible employees, as defined above, which includes employer participation in accordance with the provisions of Section 401(k) of the Internal Revenue Code.    
Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount $ 17,000 $ 16,500 $ 16,500
SafeHarborPlanMember
     
Contribution to Retirement Plan $ 222,719 $ 208,206 $ 344,772