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Balance Sheet Components (Tables)

6 Months Ended

Jun. 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 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

Summary of 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

Summary of 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