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Note 2. Income Per Common Share: Earnings Per Share, Policy (Policies)
6 Months Ended
Jun. 30, 2016
Policies  
Earnings Per Share, Policy

Diluted earnings per share was computed using the treasury stock method and includes incremental common shares, primarily from the dilutive effect of share-based payment awards, amounting to 213,000 and 210,000 shares for the three months and six months ended June 30, 2016, respectively; and 163,000 and 165,000 shares for the three months and six months ended June 30, 2015, respectively.