Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Operations
Revenues	$ 0	$ 0	$ 0	$ 0
Operating expenses
General and administrative expense (recovery)	(5,076)	3,318	6,960	19,319
Invitation to bid contract costs	10,163		10,163
Land option and lease expense	451	250	862	500
Depreciation expense	43	48	85	77
Total operating expenses	5,581	3,616	18,070	19,896
Total operating loss	(5,581)	(3,616)	(18,070)	(19,896)
Other income (expense)
Loss on common stock warrant liabilities	(1,641)		(1,838)
Interest income, net	409	131	875	253
Other	94	3	271	(39)
Total other (expense) income	(1,138)	134	(692)	214
Net loss attributable to NextDecade Corporation	(6,719)	(3,482)	(18,762)	(19,682)
Preferred stock dividends			(4,972)
Deemed dividends on Series A Convertible Preferred Stock	(488)		(1,039)
Net loss attributable to common stockholders	$ (7,207)	$ (3,482)	$ (24,773)	$ (19,682)
Net loss per common share - basic and diluted	$ (0.07)	$ (0.03)	$ (0.23)	$ (0.18)
Weighted average shares outstanding - basic and diluted	107,061	106,398	107,001	106,393