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Cash, Cash Equivalents and Investments (Tables) | 3 Months Ended
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Mar. 31, 2022
Cash and Cash Equivalents [Abstract] |
Schedule of Securities Classified as Cash, Cash Equivalents and Investments | Securities classified as cash, cash equivalents and investments as of March 31, 2022 and December 31, 2021 are summarized below (in thousands):
| March 31, 2022
|  |  | Gross Unrealized |  |
| Amortized Cost |  | Gains |  | Losses |  | Fair Value
Cash and cash equivalents: |  |  |  |  |  |  |
Cash | $ | 7,555 |  |  | $ | — |  |  | $ | — |  |  | $ | 7,555 |
Money market funds | 34,524 |  |  | — |  |  | — |  |  | 34,524 |
Commercial paper | 4,999 |  |  | — |  |  | (1) |  |  | 4,998 |
Total cash and cash equivalents | 47,078 |  |  | — |  |  | (1) |  |  | 47,077 |
Short-term investments: |  |  |  |  |  |  |
Commercial paper | $ | 28,409 |  |  | $ | — |  |  | $ | (52) |  |  | $ | 28,357 |
U.S. government-sponsored agency bonds | 10,777 |  |  | — |  |  | (22) |  |  | 10,755 |
Corporate bonds | 2,521 |  |  | — |  |  | (10) |  |  | 2,511 |
Asset-backed securities | 1,007 |  |  | — |  |  | (3) |  |  | 1,004 |
Total short-term investments | 42,714 |  |  | — |  |  | (87) |  |  | 42,627 |
Total cash equivalents and investments | $ | 89,792 |  |  | $ | — |  |  | $ | (88) |  |  | $ | 89,704 |
| December 31, 2021
|  |  | Gross Unrealized |  |
| Amortized Cost |  | Gains |  | Losses |  | Fair Value
Cash and cash equivalents: |  |  |  |  |  |  |
Cash | $ | 1,253 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,253 |
Money market funds | 71,175 |  |  | — |  |  | — |  |  | 71,175 |
Total cash and cash equivalents | 72,428 |  |  | — |  |  | — |  |  | 72,428 |
Short-term investments |  |  |  |  |  |  |
Commercial paper | $ | 31,936 |  |  | $ | 1 |  |  | $ | (2) |  |  | $ | 31,935 |
Corporate bonds | 7,025 |  |  | — |  |  | (3) |  |  | 7,022 |
Asset backed securities | 5,306 |  |  | — |  |  | (2) |  |  | 5,304 |
Total short-term investments | 44,267 |  |  | 1 |  |  | (7) |  |  | 44,261 |
Total cash equivalents and investments | $ | 116,695 |  |  | $ | 1 |  |  | $ | (7) |  |  | $ | 116,689 |

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