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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Net Loss Per Share | Net Loss Per Share Adoption of ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity We adopted ASU 2020-06 on January 1, 2021 under the modified retrospective method applied to convertible senior notes outstanding as of January 1, 2021 and have not changed previously disclosed amounts or provided additional disclosures for comparative periods. ASU 2020-06 requires the if-converted method to be applied for all convertible instruments when calculating diluted earnings per share. Under the if-converted method, outstanding convertible senior notes are assumed to be converted into common stock at the beginning of the period (or at the time of issuance, if later). The following table sets forth the computation of basic and diluted net loss per share (in thousands, except per share amounts):
|  |  | Years Ended December 31,
|  |  |  |  | 2021 |  | 2020(1) |  | 2019(1)
Numerator: |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  | $ | (1,458) |  |  | $ | (6,221) |  |  | $ | (9,605) |
Denominator: |  |  |  |  |  |  |  |  |
Weighted average shares used to compute net loss per share, basic and diluted |  |  |  |  | 141,262 |  |  | 125,367 |  |  | 119,204 |
Net loss per share, basic and diluted |  |  |  |  | $ | (0.01) |  |  | $ | (0.05) |  |  | $ | (0.08) |
(1) As noted above, prior period amounts have not been adjusted due to the adoption of ASU 2020-06 under the modified retrospective method. The following potential weighted-average shares of common stock outstanding were excluded from the computation of diluted net loss per share because including them would have been anti-dilutive (in thousands):
|  |  | Years Ended December 31,
|  |  |  |  | 2021 |  | 2020 |  | 2019
Shares related to stock plan activity |  |  |  |  | 2,545 |  |  | 4,470 |  |  | 7,094 |
Shares related to convertible senior notes |  |  |  |  | 23,300 |  |  | 4,942 |  |  | 3,526 |
Total common stock equivalents |  |  |  |  | 25,845 |  |  | 9,412 |  |  | 10,620 |

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