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Investments and Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract] |
Schedule of Components of Investments | The components of our investments as of December 31, 2022 and 2021 are as follows (in thousands):
| As of December 31, 2022
| Fair Value Measurement |  | Balance Sheet Classification
| Fair Value Level |  | Cost Basis |  | Unrealized Gains (Losses) |  | Market Value |  | Cash and Cash Equivalents |  | Short-term Investments and Marketable Securities |  |
Money market fund | Level 1 |  | $ | 39,469 |  |  | $ | — |  |  | $ | 39,469 |  |  | $ | 39,469 |  |  | $ | — |  |  |
U.S. Treasury bonds | Level 1 |  | 9,396 |  |  | (13) |  |  | 9,383 |  |  | — |  |  | 9,383 |  |  |
Commercial paper | Level 2 |  | 26,704 |  |  | — |  |  | 26,704 |  |  | — |  |  | 26,704 |  |  |
Corporate bonds | Level 2 |  | 9,353 |  |  | (12) |  |  | 9,341 |  |  | — |  |  | 9,341 |  |  |
Agency bonds | Level 2 |  | 2,432 |  |  | 3 |  |  | 2,435 |  |  |  |  | 2,435 |  |  |
Total investments |  |  | $ | 87,354 |  |  | $ | (22) |  |  | $ | 87,332 |  |  | $ | 39,469 |  |  | $ | 47,863 |  |  |
As of December 31, 2021, our investments consisted of the following (in thousands):
| As of December 31, 2021
| Fair Value Measurement |  | Balance Sheet Classification
| Fair Value Level |  | Cost Basis |  | Unrealized Gains (Losses) |  | Market Value |  | Cash and Cash Equivalents |  | Short-Term Investments and Marketable Securities |  | Long-Term Investments
Money market fund | Level 1 |  | $ | 38,301 |  |  | $ | — |  |  | $ | 38,301 |  |  | $ | 38,301 |  |  | $ | — |  |  | $ | — |
U.S. Treasury bonds | Level 1 |  | 8,171 |  |  | — |  |  | 8,171 |  |  | — |  |  | 8,171 |  |  | — |
Commercial paper | Level 2 |  | 23,312 |  |  | — |  |  | 23,312 |  |  | — |  |  | 23,312 |  |  | — |
Corporate bonds | Level 2 |  | 20,107 |  |  | (14) |  |  | 20,093 |  |  | — |  |  | 8,049 |  |  | 12,044 |
Asset-backed securities | Level 2 |  | 15,655 |  |  | (8) |  |  | 15,647 |  |  | — |  |  | 15,647 |  |  | — |
Total investments |  |  | $ | 105,546 |  |  | $ | (22) |  |  | $ | 105,524 |  |  | $ | 38,301 |  |  | $ | 55,179 |  |  | $ | 12,044 |
Schedule of Amortized Cost Basis and Fair Value of Debt Securities by Contractual Maturity | The amortized cost basis and fair value of debt securities at December 31, 2022 and 2021, by contractual maturity, are as follows (in thousands):
| As of December 31, 2022
| Cost Basis |  | Fair Value
Due in one year or less | $ | 87,354 |  |  | $ | 87,332 |
Due after one year through five years | — |  |  | — |
Total investments | $ | 87,354 |  |  | $ | 87,332 |
| As of December 31, 2021
| Cost Basis |  | Fair Value
Due in one year or less | $ | 93,497 |  |  | $ | 93,480 |
Due after one year through five years | 12,049 |  |  | 12,044 |
Total investments | $ | 105,546 |  |  | $ | 105,524 |

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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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