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Balance Sheet Components | 12 Months Ended
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Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract] |
Balance Sheet Components | 4. Balance Sheet Components Prepaid Expenses and Oher Non-current assets Prepaid expenses and other non-current assets consisted of the following (in thousands):
|  | December 31, |
|  | 2020 |  |  | 2019 |
Prepaid clinical and research expenses |  | $ | — |  |  | $ | 1,462 |
Deferred offering costs |  |  | — |  |  |  | 894 |
Deposits |  |  | 608 |  |  |  | 58 |
Total prepaid expenses and other non-current assets |  | $ | 608 |  |  | $ | 2,414 |
Property and Equipment, net Property and equipment, net, consisted of the following (in thousands):
|  | December 31, |
|  | 2020 |  |  | 2019 |
Manufacturing and laboratory equipment |  | $ | 2,179 |  |  | $ | 1,863 |
Computer hardware |  |  | 28 |  |  |  | 28 |
Office furniture and equipment |  |  | 28 |  |  |  | 28 |
Leasehold improvement |  |  | 234 |  |  |  | — |
Construction in progress |  |  | 611 |  |  |  | 795 |
Total property and equipment, at cost |  |  | 3,080 |  |  |  | 2,714 |
Less: accumulated depreciation |  |  | (1,134 | ) |  |  | (739 | )
Property and equipment, net |  | $ | 1,946 |  |  | $ | 1,975 |
Depreciation expense for the years ended December 31, 2020 and 2019 was $395,000 and $303,000, respectively. Other Current Liabilities Other current liabilities consisted of the following (in thousands):
|  | December 31, |
|  | 2020 |  |  | 2019 |
Salaries and benefits |  | $ | 2,302 |  |  | $ | 2,044 |
Professional services |  |  | 425 |  |  |  | 946 |
Deferred rent |  |  | 27 |  |  |  | — |
Other |  |  | 374 |  |  |  | 134 |
Total other current liabilities |  | $ | 3,128 |  |  | $ | 3,124 |

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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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