Property, Plant and Equipment (Tables)

3 Months Ended

Mar. 31, 2021

Property Plant And Equipment [Abstract]

Schedule of Property, Plant and Equipment

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

	March 31,			December 31,
	2021			2020
Computer equipment	$	858		$	658
Lab equipment		1,329			1,324
Testing equipment		379			313
Leasehold improvements		796			765
Construction in progress		565			—
Furniture and fixtures		401			401
Software		16			—
Total property, plant and equipment	$	4,344		$	3,461
Less: accumulated depreciation		(2,063	)		(1,847	)
Total property, plant and equipment, net	$	2,281		$	1,614