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Balance Sheet Details | 9 Months Ended
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Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Balance Sheet Details | 4. Balance Sheet Details Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets as of September 30, 2023 and December 31, 2022 consisted of the following:
|  |  | September 30, |  |  | December 31, |
|  |  | 2023 |  |  | 2022 |
|  |  | (in thousands) |
Prepaid expenses |  |  | $ | 15,335 |  |  | $ | 5,312 |
Purchased equipment deposits |  |  |  | 7,792 |  |  |  | — |
Interest receivable |  |  |  | 3,438 |  |  |  | 2,848 |
Grant receivable |  |  |  | 1,886 |  |  |  | 1,029 |
Other current assets |  |  |  | 1,299 |  |  |  | 1,990 |
Total |  |  | $ | 29,750 |  |  | $ | 11,179 |
Property and Equipment, Net Property and equipment, net as of September 30, 2023 and December 31, 2022 consisted of the following:
|  | September 30, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
|  | (in thousands) |
Furniture and equipment |  | $ | 1,608 |  |  | $ | 1,608 |
Computers and computer software |  |  | 416 |  |  |  | 416 |
Lab equipment |  |  | 16,438 |  |  |  | 13,100 |
Leasehold improvements |  |  | 1,353 |  |  |  | 1,353 |
Total property and equipment |  |  | 19,815 |  |  |  | 16,477 |
Less: accumulated depreciation and amortization |  |  | (8,384 | ) |  |  | (6,117 | )
Property and equipment, net |  | $ | 11,431 |  |  | $ | 10,360 |
Depreciation and amortization expense was $0.8 million and $0.7 million for the three months ended September 30, 2023 and 2022, respectively, and $2.3 million and $1.9 million for the nine months ended September 30, 2023 and 2022, respectively. Accrued Expenses Accrued expenses as of September 30, 2023 and December 31, 2022 consisted of the following:
|  | September 30, |  |  | December 31, |
|  | 2023 |  |  | 2022 |
|  | (in thousands) |
Clinical studies |  | $ | 476 |  |  | $ | 1,518 |
Other research and development |  |  | 12,052 |  |  |  | 12,446 |
Other accrued expenses |  |  | 2,493 |  |  |  | 1,411 |
Total |  | $ | 15,021 |  |  | $ | 15,375 |

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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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