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Net Loss Per Share Attributable to Common Stockholders | 9 Months Ended
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Sep. 30, 2019
Earnings Per Share [Abstract] |
Net Loss Per Share Attributable to Common Stockholders | NOTE 12 —Net Loss Per Share Attributable to Common Stockholders Net loss per share attributable to common stockholders for the three and nine months ended September 30, 2019 and 2018 was determined by increasing Net income (loss) for the three and nine months then ended by the number of cumulative dividends, not yet declared, on the Company's previously outstanding convertible preferred stock. The following table sets forth the computation of the Company’s basic and diluted net loss per share attributable to common stockholders for the three and nine months ended:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30 |  |  | September 30 |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss allocable to common stockholders |  | $ | (6,768 | ) |  | $ | (947 | ) |  | $ | (19,057 | ) |  | $ | (12,108 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average shares used in computing net loss per share, basic and diluted |  |  | 20,356,447 |  |  |  | 1,037,090 |  |  |  | 18,085,719 |  |  |  | 1,035,927 |
Net loss per share, basic and diluted |  | $ | (0.33 | ) |  | $ | (0.91 | ) |  | $ | (1.05 | ) |  | $ | (11.69 | )
The potentially dilutive common shares that were excluded from the calculation of diluted net loss per share because their effect would have been antidilutive for the three and nine months ended September 30, 2019 and 2018, respectively, are as follows:
|  | Three Months Ended |  |  | Nine Months Ended |
|  | September 30 |  |  | September 30 |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Shares of convertible preferred stock |  |  | — |  |  |  | 12,217,459 |  |  |  | — |  |  |  | 12,217,459 |
Shares subject to options to purchase common stock |  |  | 1,721,121 |  |  |  | 1,356,511 |  |  |  | 1,721,121 |  |  |  | 1,356,511 |
Unvested restricted stock units |  |  | 90,000 |  |  |  |  |  |  |  | 90,000 |  |  |  |  |
Shares subject to warrants to purchase convertible preferred stock |  |  |  |  |  |  | 156,294 |  |  |  | — |  |  |  | 156,294 |
Shares subject to warrants to purchase common stock |  |  | 956 |  |  |  | — |  |  |  | 956 |  |  |  | — |
Shares subject to term debt optional conversion into convertible preferred stock |  |  | — |  |  |  | 1,457,437 |  |  |  | — |  |  |  | 1,457,437 |
Shares subject to term debt optional conversion into common stock |  |  | 1,099,317 |  |  |  | — |  |  |  | 1,099,317 |  |  |  | — |
Total |  |  | 2,911,394 |  |  |  | 15,187,701 |  |  |  | 2,911,394 |  |  |  | 15,187,701 |

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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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