Note 12: Stock Compensation Plans: Schedule of Activity of the 2003 Plan (Details) (2003 Stock Option Plan, USD $)	12 Months Ended
	Dec. 31, 2012		Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Option Price	0	[1]
Minimum
Option Price	1.17	[1]	1.23	[1]	1.30	[1]	1.36	[1]
Maximum
Option Price	3.31	[1]	3.48	[1]	3.66	[1]	3.84	[1]
Class A Common Stock
Shares, Outstanding	773,751		1,566,521		1,188,560		1,007,971
Adjustment for the effect of stock dividends	35,948		74,596		56,598
Shares Granted	322,000		322,500		221,600
Shares exercised	(794,144)				(97,609)
Shares cancelled	(105,766)		(19,135)
Shares Reclassifies	(250,808)
Shares Exercisable	658,510
Available for future grants	1,443,579
Weighted average contractual term of options, years	4.7
Aggregated intrinsic value of options outstanding	4,948,223
Class C Common Stock
Shares, Outstanding	5,838,505		3,610,275		3,438,355		2,274,624
Adjustment for the effect of stock dividends	245,145		171,920		163,731
Shares Granted					1,000,000
Shares exercised	(525,000)
Shares Reclassifies	2,508,085
Shares Exercisable	5,838,505
Available for future grants	782,924
Weighted average contractual term of options, years	2.03
Aggregated intrinsic value of options outstanding	3,598,618

[1] Class “C” shares are converted to Class “A” shares on a 10 to 1 ratio. The Option Price is based on Class A Common shares.