Property and equipment, net

12 Months Ended

Dec. 31, 2022

Property and equipment, net

Property and equipment, net

4. Property and equipment, net

Property and equipment consisted of the following:

	December 31,
(in thousands)	2022		2021
Lab equipment	$	3,681	$	3,513
Leasehold improvements		194		193
Computer equipment		235		156
Office equipment and furniture and fixtures		22		22
		4,132		3,884
Less accumulated depreciation and amortization		(3,451)		(3,029)
Property and equipment, net	$	681	$	855

Depreciation and amortization expense was $0.4 million and $0.8 million for the years ended December 31, 2022 and 2021, respectively. There were no assets under capital leases as of December 31, 2022 and 2021.