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Note 10 - Net Loss Per Share | 12 Months Ended
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Dec. 31, 2018
Notes to Financial Statements |
Earnings Per Share [Text Block] | NOTE 1 0 : NET LOSS PER SHARE The Company accounts for and discloses net income (loss) per common share in accordance with Accounting Standards Codification ("ASC") Topic 260, Earnings Per Share . Basic net loss per common share is computed by dividing net loss attributable to common stockholders by the weighted average number of common shares outstanding. In addition, in computing the dilutive effect of convertible securities, the numerator is adjusted to add back any convertible preferred dividends. Diluted net loss per common share is computed by dividing net loss attributable to common stockholders by the weighted average number of common shares that would have been outstanding during the period assuming the issuance of common shares for all potential dilutive common shares outstanding. Potential common shares consist of potential future exercises of outstanding stock options and common stock warrants. Because the inclusion of potential common shares would be anti-dilutive for all periods presented they have been excluded from the calculation. The following table summarizes the Company’s calculation of net loss per common share:
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |
Numerator |  |  |  |  |  |  |  |
Net loss |  | $ | (11,404,934 | ) |  | $ | (8,122,581 | )
Deemed dividend attributable to preferred stock |  |  | (11,479,308 | ) |  |  | (2,568,132 | )
Net loss attributable to common shareholders |  | $ | (22,884,242 | ) |  | $ | (10,690,713 | )
Denominator |  |  |  |  |  |  |  |
Weighted average common shares outstanding used to compute net loss per share, basic and diluted |  |  | 4,157,746 |  |  |  | 974,773 |
Net loss per share of common stock, basic and diluted: |  | $ | (5.50 | ) |  | $ | (10.97 | )
The following table sets forth the number of potential common shares excluded from the calculation of net loss per diluted share, because including them would be anti-dilutive:
|  | Year Ended December 31, |
|  | 2018 |  |  | 2017 |
Options to purchase common stock |  |  | 487,941 |  |  |  | 117,301 |
Series A convertible preferred stock |  |  |  |  |  |  | 55,835 |
Series B convertible preferred stock |  |  | 774,983 |  |  |  |  |
Warrants to purchase common stock |  |  | 3,054,481 |  |  |  | 202,063 |
|  |  | 4,317,405 |  |  |  | 375,199 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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