Note 10: Retirement Plans: Deferred Compensation Plans (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CEO, and past senior VP
Deferred Compensation Arrangement with Individual, Recorded Liability	$ 598,426
Scott M. Quist
Deferred Compensation Arrangement with Individual, Recorded Liability	3,264,925	$ 2,270,425
Present value of anticipated benefits	999,961	833,183	$ 264,000
Deferred Tax Credits related to compensation expense
Deferred Compensation Arrangement with Individual, Recorded Liability	1,093,720	768,220
Present value of anticipated benefits	$ 320,039	$ 154,817
Deferred Compensation Plan
Deferred Compensation Arrangements, Overall, Description	Under the terms of the Plan, the Company will provide deferred compensation for a select group of management or highly compensated employees, within the meaning of Sections 201(2), 301(a)(3) and 401(a)(1) of the Employee Retirement Income Security Act of 1974, as amended. The Board has appointed a Committee of the Company to be the Plan Administrator and to determine the employees who are eligible to participate in the plan. The employees who participate may elect to defer a portion of their compensation into the plan.