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Note 2. Income Per Common Share: Earnings Per Share, Policy (Policies)
3 Months Ended
Mar. 31, 2016
Policies  
Earnings Per Share, Policy

Diluted income 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 206,000 and 167,000 shares for the three months ended March 31, 2016 and 2015.