Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Property and Equipment, Net

Note 7 - Property and Equipment, Net

3 Months Ended

Mar. 31, 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)		March 31, 2022			December 31, 2021

Operational equipment		3 - 10	$	1,530		$	1,539
Lab equipment		5		730			530
Computer equipment		3		8			8
Office furniture and equipment		3		91			91
Equipment under construction				1,657			1,328
				4,016			3,496
Less: accumulated depreciation				(1,236	)		(1,129	)

Total property and equipment, net			$	2,780		$	2,367

Property and equipment depreciation expense was $0.1 million and $0.3 million for the three months ended March 31, 2022 and for the three months ended March 31, 2021, respectively. Equipment under construction is comprised of various components being manufactured or installed by the Company.