PROPERTY AND EQUIPMENT

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

PROPERTY AND EQUIPMENT

7. PROPERTY AND EQUIPMENT

Property and equipment consists of the following (in thousands):

	December 31,
	2023			2022
Production equipment	$	6,140		$	6,140
Leasehold improvements		3,843			3,789
Computer hardware and software/lab equipment		12,149			10,515
Office furniture and equipment		5,367			1,804
		27,499			22,248
Less: Accumulated depreciation		(18,467	)		(15,418	)
	$	9,032		$	6,830

Depreciation expense was $3.1 million in 2023, $0.7 million in 2022 and $0.9 million in 2021.