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Cash, Cash Equivalents and Investments - Securities Classified as Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Cash and cash equivalents: |  |
Fair Value | $ 61,628 | $ 72,428
Short-term investments: |  |
Amortized Cost | 29,109 | 44,267
Gross Unrealized Gains | 0 | 1
Gross Unrealized Losses | (114) | (7)
Fair Value | 28,995 | 44,261
Amortized Cost | 90,737 | 116,695
Gross Unrealized Gains | 0 | 1
Gross Unrealized Losses | (114) | (7)
Fair Value | 90,623 | 116,689
Commercial paper |  |
Short-term investments: |  |
Amortized Cost | 20,616 | 31,936
Gross Unrealized Gains | 0 | 1
Gross Unrealized Losses | (78) | (2)
Fair Value | 20,538 | 31,935
U.S. government-sponsored agency bonds |  |
Short-term investments: |  |
Amortized Cost | 1,480 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (1) |
Fair Value | 1,479 |
Corporate bonds |  |
Short-term investments: |  |
Amortized Cost | 1,005 | 7,025
Gross Unrealized Gains | 0 | 0
Gross Unrealized Losses | (9) | (3)
Fair Value | 996 | 7,022
U.S. treasury notes |  |
Short-term investments: |  |
Amortized Cost | 6,008 |
Gross Unrealized Gains | 0 |
Gross Unrealized Losses | (26) |
Fair Value | 5,982 |
Asset backed securities |  |
Short-term investments: |  |
Amortized Cost |  | 5,306
Gross Unrealized Gains |  | 0
Gross Unrealized Losses |  | (2)
Fair Value |  | 5,304
Cash |  |
Cash and cash equivalents: |  |
Fair Value | 652 | 1,253
Money market funds |  |
Cash and cash equivalents: |  |
Fair Value | $ 60,976 | $ 71,175

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