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Net Income Per Share | 6 Months Ended
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Jun. 30, 2016
Earnings Per Share [Abstract] |
Net Income Per Share | Note 4. Net Income Per Share
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |
Net income (loss) |  | $ | 2,031 |  |  | $ | 6,953 |  |  | $ | 732 |  |  | $ | 12,955 |
Weighted average shares outstanding |  |  | 27,024 |  |  |  | 19,215 |  |  |  | 26,923 |  |  |  | 19,064 |
Effect of dilutive stock options |  |  | 163 |  |  |  | 367 |  |  |  | 127 |  |  |  | 352 |
Diluted shares outstanding |  |  | 27,187 |  |  |  | 19,582 |  |  |  | 27,050 |  |  |  | 19,416 |
Basic net income (loss) per share |  | $ | 0.08 |  |  | $ | 0.36 |  |  | $ | 0.03 |  |  | $ | 0.68 |
Diluted net income (loss) per share |  | $ | 0.07 |  |  | $ | 0.36 |  |  | $ | 0.03 |  |  | $ | 0.67 |
For both the three and six month periods ended June 30, 2016, approximately 0.9 million potentially dilutive stock options had the effect of being anti-dilutive and were excluded from the calculation of diluted earnings per share. For both the three and six month periods ended June 30, 2016, approximately 0.7 million potentially dilutive stock options had the effect of being anti-dilutive and were excluded from the calculation of diluted earnings per share.

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