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Net Income (Loss) per Share of Common Stock | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Net Income (Loss) per Share of Common Stock | Note 11 – Net Income (Loss) per Share of Common Stock For all periods, basic net income (loss) per share is calculated by dividing net income (loss) by the weighted-average common shares outstanding. Diluted net income per share in profitable periods reflects the effect of all potentially dilutive common shares outstanding by dividing net income by the weighted-average of all common and potentially dilutive shares outstanding. Weighted-average shares related to potentially dilutive stock options of 385,551, 586,589 and 755,617 for fiscal years 2016, 2015 and 2014, respectively, were not used to compute diluted net income (loss) per share because the effects would have been anti-dilutive.

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