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Note 1: Nature of Operations and Summary of Significant Accounting Policies: Earnings Per Share, Policy (Policies) | 12 Months Ended
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Dec. 31, 2017
Policies |
Earnings Per Share, Policy | Earnings Per Common Share Basic earnings per common share are computed based on the weighted average number of common shares outstanding during each year. Diluted earnings per common share are computed using the weighted average common shares and all potential dilutive common shares outstanding during the period. Earnings per common share (EPS) were computed as follows:
| 2017 | 2016 | 2015
| (In Thousands, Except Per Share Data)
Net income | $ 51,564 | $ 45,342 | $ 46,502
Net income available to common shareholders | $ 51,564 | $ 45,342 | $ 45,948
Average common shares outstanding | 14,032 | 13,912 | 13,818
Average common share stock options outstanding | 148 | 229 | 182
Average diluted common shares | 14,180 | 14,141 | 14,000
Earnings per common share – basic | $ 3.67 | $ 3.26 | $ 3.33
Earnings per common share – diluted | $ 3.64 | $ 3.21 | $ 3.28
Options outstanding at December 31, 2017, 2016 and 2015, to purchase 253,711, 108,450 and 117,600 shares of common stock, respectively, were not included in the computation of diluted earnings per common share for each of the years because the exercise prices of such options were greater than the average market prices of the common stock for the years ended December 31, 2017, 2016 and 2015, respectively.

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- Definition Disclosure of accounting policy for computing basic and diluted earnings or loss per share for each class of common stock and participating security. Addresses all significant policy factors, including any antidilutive items that have been excluded from the computation and takes into account stock dividends, splits and reverse splits that occur after the balance sheet date of the latest reporting period but before the issuance of the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84158767&loc=d3e18780-107790 + Details
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