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Net Loss Per Share | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Net Loss Per Share | 11. NET LOSS PER SHARE Basic net loss per share is calculated by dividing the net loss attributable to common stockholders by the weighted average number of shares of common stock outstanding during the period, without consideration for potentially dilutive securities. Diluted net loss per share is the same as basic net loss per share for the periods presented since the effects of potentially dilutive securities are antidilutive given the net loss of the Company. Basic and diluted net loss per share attributable to common stockholders is calculated as follows (in thousands except share and per share amounts):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
Net loss |  | $ | (3,050 | ) |  | $ | (2,874 | ) |  | $ | (5,413 | ) |  | $ | (4,565 | )
Cumulative dividends on convertible preferred stock |  |  | (715 | ) |  |  | (304 | ) |  |  | (1,421 | ) |  |  | (564 | )
Net loss attributable to common stockholders |  | $ | (3,765 | ) |  | $ | (3,178 | ) |  | $ | (6,834 | ) |  | $ | (5,129 | )
Net loss per share—basic and diluted |  | $ | (1.00 | ) |  | $ | (0.92 | ) |  | $ | (1.82 | ) |  | $ | (1.52 | )
Weighted-average number of shares used in computing net loss per share—basic and diluted |  |  | 3,764,488 |  |  |  | 3,462,182 |  |  |  | 3,764,488 |  |  |  | 3,383,774 |
The following outstanding potentially dilutive securities have been excluded from the calculation of diluted net loss per share, as their effect is anti-dilutive:
|  | For the Six Months Ended June |
|  | 2021 |  |  | 2020 |
Convertible preferred stock |  |  | 9,993,727 |  |  |  | 4,247,927 |
Stock options to purchase common stock |  |  | 1,552,290 |  |  |  | 392,723 |
Warrants to purchase preferred stock |  |  | — |  |  |  | 231,396 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3630-109257 + Details
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