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Balance Sheet Components | 6 Months Ended
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Jun. 30, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Balance Sheet Components | Note 4. Balance Sheet Components Property and Equipment, Net Property and equipment, net consist of the following (in thousands):
|  | As of June 30, |  |  | As of December 31, |
|  | 2021 |  |  | 2020 |
Tools and equipment |  | $ | 1,552 |  |  | $ | 1,523 |
Computer equipment and software |  |  | 108 |  |  |  | 118 |
Furniture and fixtures |  |  | 43 |  |  |  | 43 |
Leasehold improvements |  |  | 30 |  |  |  | 30 |
Construction in process |  |  | 604 |  |  |  | 298 |
|  |  | 2,337 |  |  |  | 2,012 |
Less: Accumulated depreciation |  |  | (919 | ) |  |  | (743 | )
Property and equipment, net |  | $ | 1,418 |  |  | $ | 1,269 |
Depreciation expense was $0.2 million and $0.3 million for the three and six months ended June 30, 2021, respectively. Depreciation expense was $0.2 million and $0.3 million for the three and six months ended June 30, 2020, respectively. Accrued and Other Current Liabilities Accrued and other current liabilities consist of the following (in thousands):
|  | As of June 30, |  |  | As of December 31, |
|  | 2021 |  |  | 2020 |
Accrued expenses |  | $ | 3,919 |  |  | $ | 1,971 |
Current portion of lease liabilities |  |  | 112 |  |  |  | 395 |
Short term interest payable |  |  | 267 |  |  |  | 274 |
Other accrued liabilities |  |  | 456 |  |  |  | 446 |
Total accrued and other current liabilities |  | $ | 4,754 |  |  | $ | 3,086 |
Other Noncurrent Liabilities Other noncurrent liabilities consist of the following (in thousands):
|  | As of June 30, |  |  | As of December 31, |
|  | 2021 |  |  | 2020 |
Redeemable preferred stock warrants liabilities |  | $ | 6,984 |  |  | $ | 2,112 |
Long term interest payable |  |  | 651 |  |  |  | 465 |
Noncurrent portion of lease liabilities |  |  | 125 |  |  |  | 134 |
Other noncurrent liabilities |  |  | 345 |  |  |  | 344 |
Total other noncurrent liabilities |  | $ | 8,105 |  |  | $ | 3,055 |

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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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