Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Schedule of Property Plant and Equipment

Property, plant, and equipment consisted of the following:

(in thousands)	December 31, 2021		December 31, 2020
Land	$	912	$	39
Pilot plant	5,517		5,237
Lab equipment	2,227		1,958
Machinery and equipment	655		655
Computer and other equipment	388		295
Construction in process	55,026		43,962
	64,725		52,146
Less accumulated depreciation and amortization	(7,540)		(7,042)
Total property, plant, and equipment, net	$	57,185	$	45,104