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Note 5: Earnings Per Share: Schedule of Earnings Per Share, Basic and Diluted (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Details        
Weighted Average Number of Shares Outstanding, Basic 13,685 13,619 13,685 13,618
NET INCOME AVAILABLE TO COMMON SHAREHOLDERS $ 10,909 $ 8,079 $ 19,582 $ 16,328
BASIC EARNINGS PER COMMON SHARE $ 0.80 $ 0.59 $ 1.43 $ 1.20
Weighted Average Number of Shares Outstanding, Diluted 13,685 13,619 13,685 13,618
Net effect of dilutive stock options and warrants based on treasury stock method using average market price 95 62 95 62
Diluted shares 13,780 13,681 13,780 13,680
Net Income (Loss) Available to Common Stockholders, Diluted $ 10,909 $ 8,079 $ 19,582 $ 16,328
DILUTED EARNINGS PER COMMON SHARE $ 0.79 $ 0.59 $ 1.42 $ 1.19