Property and Equipment, Net

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

7. Property and Equipment, net

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


		As of December 31,
	Useful life (years)	2021			2020
Laboratory equipment	3	$	5,502		$	4,350
Leasehold improvements	Lesser of useful life or lease term		1,614			1,427
Furniture and fixtures	3		303			524
Construction in progress	—		13,014			1,090
Computer equipment	3		216			93
Software	3		320			170
			20,969			7,654
Less: Accumulated depreciation and amortization			(6,326	)		(4,864	)
Property and equipment, net		$	14,643		$	2,790

Depreciation and amortization expense for each of the years ended December 31, 2021 and 2020 was $1.5 million and $1.2 million, respectively. All of the Company’s property and equipment as of December 31, 2021 and 2020 is located in the U.S. Construction in progress has increased by $11.9 million due to building construction related to the Company's leased space in Redwood City. Construction in process will continue to increase through the first half of 2022, until completion of construction.