Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Property, Plant and Equipment, Net

Note 7 - Property, Plant and Equipment, Net

6 Months Ended

Jun. 30, 2023

Property, Plant and Equipment Disclosure [Text Block]

7. Property, plant and equipment, net

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

	Useful Life
Asset Class	(Years)		June 30, 2023			December 31, 2022

Operational equipment		3 - 10	$	4,501		$	1,445
Lab equipment		5		730			730
Computer equipment		3		6			6
Office furniture and equipment		3		90			90
Leasehold improvements		2.5		80			80
Land		-		1,141			—
Building		39		3,131			—
Equipment under construction				3,789			6,486
				13,468			8,837
Less: accumulated depreciation				(1,517	)		(1,494	)

Total property, plant and equipment, net			$	11,951		$	7,343

Property, plant and equipment depreciation expense was $0.2 million and $0.3 million for the three and six months ended June 30, 2023 and $0.1 million and $0.2 million three and six months ended June 30, 2022, respectively. Equipment under construction is comprised of various components being manufactured or installed by the Company.