Property and Equipment, Net

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Property and Equipment, Net

5. Property and Equipment, Net

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

	December 31,
	2021			2020
Machinery and equipment	$	5,971		$	4,911
Leasehold improvements		2,527			2,527
Furniture and fixtures		566			473
Office equipment		165			101
Computer equipment and software		421			366
Construction in progress		10,066			539
Total property and equipment		19,716			8,917
Less: Accumulated depreciation and amortization		(5,325	)		(3,844	)
Property and equipment, net	$	14,391		$	5,073

All property and equipment are maintained in the United States. Depreciation expense was $1.5 million and $1.4 million for the years ended December 31, 2021 and 2020, respectively.