Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Operating Expenses
General and administrative expenses	6,814	12,019
Land option and lease expenses	411	428
Depreciation expense	16	41
Total operating expenses	7,241	12,488
Total operating loss	(7,241)	(12,488)
Other income (expense)
Gain (loss) on Common Stock Warrant liabilities	8,339	(197)
Loss on redemption of investment securities	(412)
Interest income, net	233	466
Other	(17)	176
Total other income	8,143	445
Net income (loss) attributable to NextDecade Corporation	902	(12,043)
Preferred stock dividends	(3,443)	(4,972)
Deemed dividends on Series A Convertible Preferred Stock	(76)	(551)
Net loss attributable to common stockholders	$ (2,617)	$ (17,566)
Net loss per common share - basic and diluted (in dollars per share)	$ (0.02)	$ (0.16)
Weighted average shares outstanding - basic and diluted (in shares)	117,353	106,940