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Balance Sheet Components (Tables) | 9 Months Ended
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Sep. 30, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Summary of Property and Equipment, Net | Property and equipment, net consist of the following (in thousands):
|  | As of September 30, |  |  | As of December 31, |
|  | 2021 |  |  | 2020 |
Tools and equipment |  | $ | 1,720 |  |  | $ | 1,523 |
Computer equipment and software |  |  | 108 |  |  |  | 118 |
Furniture and fixtures |  |  | 254 |  |  |  | 43 |
Leasehold improvements |  |  | 29 |  |  |  | 30 |
Construction in process |  |  | 393 |  |  |  | 298 |
|  |  | 2,504 |  |  |  | 2,012 |
Less: Accumulated depreciation |  |  | (1,084 | ) |  |  | (743 | )
Property and equipment, net |  | $ | 1,420 |  |  | $ | 1,269 |
Summary of Accrued and Other Current Liabilities | Accrued and other current liabilities consist of the following (in thousands):
|  | As of September 30, |  |  | As of December 31, |
|  | 2021 |  |  | 2020 |
Accrued expenses |  | $ | 2,569 |  |  | $ | 1,971 |
Current portion of lease liabilities |  |  | 486 |  |  |  | 395 |
Short term interest payable |  |  | 272 |  |  |  | 274 |
Other accrued liabilities |  |  | 510 |  |  |  | 446 |
Total accrued and other current liabilities |  | $ | 3,837 |  |  | $ | 3,086 |
Summary of Other Noncurrent Liabilities | Other noncurrent liabilities consist of the following (in thousands):
|  | As of September 30, |  |  | As of December 31, |
|  | 2021 |  |  | 2020 |
Redeemable preferred stock warrants liabilities |  | $ | — |  |  | $ | 2,112 |
Long term interest payable |  |  | 750 |  |  |  | 465 |
Noncurrent portion of lease liabilities |  |  | 1,178 |  |  |  | 134 |
Other noncurrent liabilities |  |  | 345 |  |  |  | 344 |
Total other noncurrent liabilities |  | $ | 2,273 |  |  | $ | 3,055 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(13)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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