Note 1: Nature of Operations and Summary of Significant Accounting Policies: Options to Purchase Common Stock Policy (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Options to purchase shares of common stock outstanding not included in computation of diluted earnings per share because exercise price greater than average market price	444,770	479,098	498,674