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Balance Sheet Components | 12 Months Ended
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Dec. 31, 2023
Balance Sheet Related Disclosures [Abstract] |
Balance Sheet Components | 4. Balance Sheet Components Property and Equipment, Net Property and equipment, net consisted of the following (in thousands):
|  | Useful Life |  | As of December 31, |
|  | (In Years) |  | 2023 |  |  | 2022 |
Laboratory equipment |  | 5 |  | $ | 11,455 |  |  | $ | 9,743 |
Computer equipment |  | 3 |  |  | 261 |  |  |  | 261 |
Software |  | 3 |  |  | 231 |  |  |  | 231 |
Leasehold improvements |  | Shorter of useful life or lease term |  |  | 3,321 |  |  |  | 3,321 |
Furniture and fixtures |  | 5 |  |  | 507 |  |  |  | 506 |
Total property and equipment |  |  |  |  | 15,775 |  |  |  | 14,062 |
Less: Accumulated depreciation and amortization |  |  |  |  | (9,611 | ) |  |  | (7,553 | )
Property and equipment, net |  |  |  | $ | 6,164 |  |  | $ | 6,509 |
Depreciation and amortization expense was $2.5 million, $2.1 million and $1.7 million for the years ended December 31, 2023, December 31, 2022 and December 31, 2021, respectively. Accrued Liabilities Accrued liabilities consisted of the following (in thousands):
|  | As of December 31, |
|  | 2023 |  |  | 2022 |
Accrued research and development expenses |  | $ | 10,676 |  |  | $ | 11,146 |
Accrued salaries and benefits |  |  | 6,974 |  |  |  | 5,248 |
Legal and professional fees |  |  | 959 |  |  |  | 513 |
Other |  |  | 147 |  |  |  | 92 |
Accrued liabilities |  | $ | 18,756 |  |  | $ | 16,999 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//210/tableOfContent + Details
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