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Net Loss Per Share | 9 Months Ended
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Sep. 30, 2020
Earnings Per Share [Abstract] |
Net Loss Per Share | NOTE 11 - NET LOSS PER SHARE Net loss per share for the three- and nine-month periods ended September 30, 2019 and 2020 are as follows:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2019 |  |  | 2020 |  |  | 2019 |  |  | 2020 |
Basic and diluted loss per share |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss attributable to common stockholders |  | $ | (2,099 | ) |  | $ | (1,749 | ) |  | $ | (6,878 | ) |  | $ | (10,064 | )
Weighted-average common shares outstanding - basic and diluted |  |  | 17,929 |  |  |  | 30,143 |  |  |  | 17,744 |  |  |  | 29,528 |
Net loss attributable to common stockholders - basic and diluted |  | $ | (0.12 | ) |  | $ | (0.06 | ) |  | $ | (0.39 | ) |  | $ | (0.34 | )
Basic loss per share is calculated by dividing net loss attributable to common shareholders by the weighted-average number of common shares outstanding during the period. Diluted loss per share reflects the potential dilution assuming common shares were issued upon the exercise of outstanding options and the proceeds thereof were used to purchase outstanding common shares. Dilutive potential common shares include outstanding stock options, warrants and restricted stock and performance share awards. We include participating securities (unvested share-based payment awards and equivalents that contain non-forfeitable rights to dividends or dividend equivalents) in the computation of earnings per share pursuant to the two-class method. Our participating securities consist solely of preferred stock, which have contractual participation rights equivalent to those of stockholders of unrestricted common stock. The two-class method of computing earnings per share is an allocation method that calculates earnings per share for common stock and participating securities. During periods of net loss, no effect is given to the participating securities because they do not share in the losses of the Company. The basic and diluted weighted-average shares outstanding are the same in 2019 and 2020, since the effect from the potential exercise of outstanding stock options, conversion of preferred stock, and vesting of restricted stock and restricted stock units totaling 2,632 and 12,070, respectively, would have been anti-dilutive due to the net loss.

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