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Note 13 - Net Earnings Per Common Share | 12 Months Ended
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Dec. 31, 2016
Notes to Financial Statements |
Earnings Per Share [Text Block] |
13. |  | Net earnings per common share
The following table reconciles the denominator used to calculate earnings per common share:
|  | 2016 |  | 2015
Shares issued and outstanding at beginning of period |  |  | 35,939,011 |  |  |  | 35,970,605 |
Weighted average number of shares: |  |  |  |  |  |  |  |
Issued during the period |  |  | 72,023 |  |  |  | 129,867 |
Repurchased during the period |  |  | (45,247 | ) |  |  | (87,214 | )
Weighted average number of shares used in computing basic earnings per share |  |  | 35,965,787 |  |  |  | 36,013,258 |
Assumed exercise of stock options, net of shares assumed acquired under the Treasury Stock Method |  |  | 399,997 |  |  |  | 411,769 |
Number of shares used in computing diluted earnings per share |  |  | 36,365,784 |  |  |  | 36,425,027 |

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