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Balance Sheet Components | 6 Months Ended
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Jun. 30, 2023
Balance Sheet Related Disclosures [Abstract] |
Balance Sheet Components | 5. Balance Sheet Components Prepaid Expenses and Other Current Assets Prepaid expenses and other current assets are comprised of the following (in thousands):
|  | June 30, 2023 |  |  | December 31, 2022 |
Prepaid expenses |  | $ | 3,390 |  |  | $ | 5,616 |
Other current assets |  |  | 2,593 |  |  |  | 2,929 |
Total prepaid expenses and other current assets |  | $ | 5,983 |  |  | $ | 8,545 |
Property and Equipment, Net Property and equipment, net is comprised of the following (in thousands):
|  | June 30, 2023 |  |  | December 31, 2022 |
Leasehold improvements |  | $ | 4,301 |  |  | $ | 4,402 |
Furniture and fixtures |  |  | 645 |  |  |  | 645 |
Research equipment |  |  | 14,348 |  |  |  | 12,900 |
Computers and software |  |  | 428 |  |  |  | 130 |
Construction in progress |  |  | 63,832 |  |  |  | 49,655 |
Total property and equipment, gross |  |  | 83,554 |  |  |  | 67,732 |
Less accumulated depreciation and amortization |  |  | (7,460 | ) |  |  | (5,824 | )
Total property and equipment, net |  | $ | 76,094 |  |  | $ | 61,908 |
Depreciation and amortization expense was $0.8 million and $1.6 million for the three and six months ended June 30, 2023, respectively, and $0.6 million and $1.2 million for the three and six months ended June 30, 2022, respectively. Accrued and Other Current Liabilities Accrued other current liabilities are comprised of the following (in thousands):
|  | June 30, 2023 |  |  | December 31, 2022 |
Accrued compensation |  | $ | 4,930 |  |  | $ | 6,691 |
Accrued research and development costs |  |  | 6,338 |  |  |  | 3,486 |
Accrued property and equipment |  |  | 5,689 |  |  |  | 5,001 |
Other accrued and current liabilities |  |  | 596 |  |  |  | 858 |
Total accrued and other liabilities |  | $ | 17,553 |  |  | $ | 16,036 |

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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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