CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Other revenue	$ 0	$ 80
Total revenues	232	93
Cost of production (including non-cash compensation expense of $0.09 million and nil, respectively)	3,090	901
Depreciation and amortization	1,091	1,093
Total cost of goods sold	4,181	1,994
Gross loss	(3,949)	(1,901)
Operating expenses
Research and development expense (including non-cash compensation expense of $0.1 million and $0.5 million, respectively)	1,192	1,378
Selling, general and administrative expense (including non-cash compensation expense of $1.4 million and $0.5 million, respectively)	9,367	3,814
Preliminary stage project costs	507	2,727
Other operations (including non-cash compensation expense of $0.1 million and nil, respectively)	589	0
Depreciation and amortization	351	58
Total operating expenses	12,006	7,977
Loss from operations	(15,955)	(9,878)
Other income (expense)
(Loss) gain from change in fair value of derivative warrant liability	0	(53)
Interest expense	(2)	(5)
Interest and dividend income	252	31
Other income (expense), net	32	(152)
Total other income (expense), net	282	(179)
Net loss	$ (15,673)	$ (10,057)
Net loss per share - basic (in dollars per share)	$ (0.08)	$ (0.05)
Net loss per share - diluted (in dollars per share)	$ (0.08)	$ (0.05)
Weighted-average number of common shares outstanding - basic (in shares)	201,925,747	183,566,524
Weighted-average number of common shares outstanding - diluted (in shares)	201,925,747	183,566,524
Ethanol sales and related products, net
Revenue from contract with customer	$ 169	$ 0
Hydrocarbon revenue
Revenue from contract with customer	$ 63	$ 13