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Balance Sheet Components (Tables)

3 Months Ended

Mar. 31, 2022

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 March 31,				As of December 31,
		2022				2021
Tools and equipment		$	1,874			$	1,685
Computer equipment and software			100				100
Furniture and fixtures			254				254
Leasehold improvements			34				29
Construction in process			826				590
			3,088				2,658
Less: Accumulated depreciation			(1,374	)			(1,204	)
Property and equipment, net		$	1,714			$	1,454

Summary of Accrued and Other Current Liabilities

Accrued and other current liabilities consist of the following (in thousands):


		As of March 31,				As of December 31,
		2022				2021
Accrued expenses		$	3,518			$	2,726
Current portion of lease liabilities			534				510
Short term interest payable			274				275
Other accrued liabilities			741				655
Total accrued and other current liabilities		$	5,067			$	4,166

Summary of Other Noncurrent Liabilities

Other noncurrent liabilities consist of the following (in thousands):


		As of March 31,				As of December 31,
		2022				2021
Noncurrent portion of lease liabilities		$	896			$	1,040
Long term interest payable			928				841
Other noncurrent liabilities			38				38
Total other noncurrent liabilities		$	1,862			$	1,919