Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Property and Equipment, Net

Note 7 - Property and Equipment, Net

6 Months Ended

Jun. 30, 2022

Property, Plant and Equipment Disclosure [Text Block]

7. Property and Equipment, net

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

	Useful Life
Asset Class	(Years)		June 30, 2022			December 31, 2021

Operational equipment		3 - 10	$	1,469		$	1,539
Lab equipment		5		730			530
Computer equipment		3		6			8
Office furniture and equipment		3		90			91
Leasehold improvements		2.5		80			—
Equipment under construction				2,232			1,328
				4,607			3,496
Less: accumulated depreciation				(1,299	)		(1,129	)

Total property and equipment, net			$	3,308		$	2,367

Property and equipment depreciation expense was $0.1 million and $0.2 million for the three and six months ended June 30, 2022 and $0.3 million and $0.5 million for the three and six months ended June 30, 2021, respectively. Equipment under construction is comprised of various components being manufactured or installed by the Company.