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6) Earnings Per Share | 9 Months Ended
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Sep. 30, 2018
Notes |
6) Earnings Per Share | 6) Earnings Per Share The basic and diluted earnings per share amounts were calculated as follows:
|  |  | Three Months Ended September 30 |  | Nine Months Ended September 30
|  |  | 2018 |  | 2017 |  | 2018 |  | 2017
Numerator: |  |  |  |  |  |  |  |
| Net earnings |  | $ 2,013,746 |  | $ 1,096,838 |  | $ 22,177,886 |  | $ 5,442,702
Denominator: |  |  |  |  |  |  |  |
| Basic weighted-average shares outstanding |  | 16,330,839 |  | 16,026,199 |  | 16,250,714 |  | 15,928,911
Effect of dilutive securities: |  |  |  |  |  |  |  |
| Employee stock options |  | 223,495 |  | 300,093 |  | 212,163 |  | 331,020
| Diluted weighted-average shares outstanding |  | 16,554,334 |  | 16,326,292 |  | 16,462,877 |  | 16,259,931
Basic net earnings per share |  | $0.12 |  | $0.07 |  | $1.36 |  | $0.34
Diluted net earnings per share |  | $0.12 |  | $0.07 |  | $1.35 |  | $0.33
Net earnings per share amounts have been retroactively adjusted for the effect of annual stock dividends. For the nine months September 30, 2018 and 2017, there were 589,822 and 486,725 of anti-dilutive employee stock option shares, respectively, that were not included in the computation of diluted net earnings per common share as their effect would be anti-dilutive.

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