Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2022

Property, plant, and equipment

Property and equipment

(in thousands)	December 31, 2022			December 31, 2021
Equipment	$	5,214		$	5,924
Computer hardware		468			468
Computer software		37			37
Furniture and fixtures		112			106
Vehicles		2,794			2,831
Leasehold improvements		6			6
		8,631			9,372
Less: accumulated depreciation		(7,899	)		(7,360	)
Property, plant, and equipment, net	$	732		$	2,012