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Balance Sheet Details | 12 Months Ended
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Dec. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Balance Sheet Details | 4. Balance Sheet Details Property and Equipment, Net Property and equipment, net as of December 31, 2021 and 2020 consisted of the following:
|  | December 31, |
|  | 2021 |  |  | 2020 |
|  | (in thousands) |
Furniture and equipment |  | $ | 1,619 |  |  | $ | 397 |
Computers and computer software |  |  | 430 |  |  |  | 111 |
Lab equipment |  |  | 9,453 |  |  |  | 4,739 |
Leasehold improvements |  |  | — |  |  |  | 1,903 |
Construction in progress |  |  | — |  |  |  | 219 |
Total property and equipment |  |  | 11,502 |  |  |  | 7,369 |
Less: accumulated depreciation and amortization |  |  | (3,548 | ) |  |  | (4,097 | )
Property and equipment, net |  | $ | 7,954 |  |  | $ | 3,272 |
Depreciation and amortization expense for years ended December 31, 2021, 2020 and 2019 was $1.8 million, $1.4 million and $1.2 million respectively, of which $0, $0 and $0.2 million related to capital lease amortization expense for the years ended December 31, 2021, 2020 and 2019, respectively. Accrued Expenses Accrued expenses as of December 31, 2021 and 2020 consisted of the following:
|  | December 31, |
|  | 2021 |  |  | 2020 |
|  | (in thousands) |
Preclinical studies |  | $ | 5,039 |  |  | $ | 2,844 |
Professional fees |  |  | 400 |  |  |  | 490 |
Other accrued expenses |  |  | 3,348 |  |  |  | 432 |
Total |  | $ | 8,787 |  |  | $ | 3,766 |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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