Property, Plant, and Equipment (Tables)

3 Months Ended

Mar. 31, 2021

Property Plant And Equipment [Abstract]

Summary of Property, Plant, and Equipment

Property, plant, and equipment, net is comprised of the following (in thousands):

	March 31,			December 31,
	2021			2020
Building	$	219			$	229
Leasehold improvements		51				52
Equipment and computers		7,482				7,477
Furniture and fixtures		465				465
Construction in progress		47				46
Total		8,264				8,269
Accumulated depreciation and amortization		(7,741	)			(7,664	)
Property, plant, and equipment, net before land		523				605
Land		170				177
Property, plant, and equipment, net	$	693			$	782