Summary of Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2022

Property, Plant and Equipment [Abstract]

Summary of Property and Equipment

Property and equipment consist of the following:

	March 31,		December 31,
	2022		2021
	(in thousands)
Leasehold improvements	$	6,535	$	6,512
Machinery and equipment		38		922
Furniture and fixtures		968		983
Research and development equipment		4,750		4,712
Computer hardware and software		1,733		1,708
Construction in progress		473		382
Subtotal		14,497		15,219
Less: Accumulated depreciation		5,086		4,345
Property and equipment, net	$	9,411	$	10,874