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Cash and Cash Equivalents and Investments (Tables) | 12 Months Ended
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Dec. 31, 2021
Cash and Cash Equivalents and Investments [Abstract] |
Schedule of Cash, Cash Equivalents and Short-term Investments |
| As of December 31, 2021
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
|  |  | (in thousands) |  |
Cash and cash equivalents | $ | 64,066 |  |  | $ | — |  |  | $ | (1) |  |  | $ | 64,065 |
Securities maturing within one year: |  |  |  |  |  |  |
U.S. treasury securities | 7,562 |  |  | — |  |  | (1) |  |  | 7,561 |
Corporate debt securities | 15,125 |  |  | — |  |  | (8) |  |  | 15,117 |
Total short-term investments | $ | 22,687 |  |  | $ | — |  |  | $ | (9) |  |  | $ | 22,678 |
Total cash and cash equivalents and investments | $ | 86,753 |  |  | $ | — |  |  | $ | (10) |  |  | $ | 86,743 |
| As of December 31, 2020
| Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Estimated Fair Value
|  |  | (in thousands) |  |
Cash and cash equivalents | $ | 126,263 |  |  | $ | — |  |  | $ | — |  |  | $ | 126,263 |
Securities maturing within one year: |  |  |  |  |  |  |
Corporate debt securities | 26,018 |  |  | 5 |  |  | (11) |  |  | 26,012 |
Total short-term investments | $ | 26,018 |  |  | $ | 5 |  |  | $ | (11) |  |  | $ | 26,012 |
Total cash and cash equivalents and investments | $ | 152,281 |  |  | $ | 5 |  |  | $ | (11) |  |  | $ | 152,275 |

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- Definition Tabular disclosure of the components of cash, cash equivalents, and investments. + References No definition available. + Details
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