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Net Income (Loss) per Share Attributable to Common Stockholders | 6 Months Ended
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Jun. 30, 2022
Earnings Per Share [Abstract] |
Net Income (Loss) per Share Attributable to Common Stockholders |
8. | Net Income (Loss) Per Share Attributable to Common Stockholders
The dilutive effect of outstanding stock options and warrants is calculated using the treasury stock method. Stock options and warrants are anti-dilutive and excluded from the diluted net income (loss) per share calculation if the exercise price exceeds the average market price of the common shares. Potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows:
|  | Six Months Ended June 30, |
|  | 2022 |  |  | 2021 |
Options to purchase common stock |  |  | 2,512,078 |  |  |  | 3,236,592 |
Common stock warrants |  |  | 85 |  |  |  | 85 |
Total |  |  | 2,512,163 |  |  |  | 3,236,677 |
The following table sets forth the computation of the basic and diluted net income (loss) per common share as follows (in thousands, except share and per share data):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2022 |  |  | 2021 |  |  | 2022 |  |  | 2021 |
Net income (loss) attributable to common stockholders |  | $ | 51,632 |  |  | $ | (19,928 | ) |  | $ | 37,096 |  |  | $ | (42,366 | )
Weighted-average number of shares used in computing net loss per share, basic |  |  | 31,477,053 |  |  |  | 31,348,602 |  |  |  | 31,466,630 |  |  |  | 29,875,202 |
Effect of dilutive stock options |  |  | 5,872 |  |  |  | — |  |  |  | 2,936 |  |  |  | — |
Weighted-average number of shares used in computing net loss per share, diluted |  |  | 31,482,925 |  |  |  | 31,348,602 |  |  |  | 31,469,566 |  |  |  | 29,875,202 |
Net income (loss) per share, basic |  | $ | 1.64 |  |  | $ | (0.64 | ) |  | $ | 1.18 |  |  | $ | (1.42 | )
Net income (loss) per share, diluted |  | $ | 1.64 |  |  | $ | (0.64 | ) |  | $ | 1.18 |  |  | $ | (1.42 | )

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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 https://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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI https://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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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