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Balance Sheet Components

12 Months Ended

Dec. 31, 2023

Note 4. Balance Sheet Components

Property and Equipment, Net

Property and equipment, net consist of the following (in thousands):


	As of December 31,
	2023			2022
Tools and equipment	$	2,010		$	2,173
Computer equipment and software		37			37
Furniture and fixtures		323			282
Leasehold improvements		38			38
Construction in process		859			475
		3,267			3,005
Less: Accumulated depreciation		(1,627	)		(1,434	)
Property and equipment, net	$	1,640		$	1,571

Depreciation expense was $0.6 million and $0.7 million for the years ended December 31, 2023 and 2022 respectively.

Accrued and Other Current Liabilities

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


	As of December 31,
	2023		2022
Accrued expenses	$	1,639	$	5,307
Current portion of lease liabilities		573		1,033
Short term interest payable		375		348
Other accrued liabilities		1,187		1,087
Total accrued and other current liabilities	$	3,774	$	7,775

Other Noncurrent Liabilities

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


	As of December 31,
	2023		2022
Long term interest payable	$	1,524	$	1,194
Noncurrent portion of lease liabilities		914		635
Other noncurrent liabilities		38		38
Total other noncurrent liabilities	$	2,476	$	1,867