Consolidated Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue:
Product sales, net	$ 36,106	$ 19,394	$ 12,816
License fees and consulting revenue	1,105	392	314
Grant revenue	832	765	814
Total revenue	38,043	20,551	13,944
Costs and operating expenses:
Cost of sales	25,122	19,718	13,153
Research and development expenses	76,797	60,624	24,463
Selling, general, and administrative expenses	46,112	25,956	27,036
Total costs and operating expenses	148,031	106,298	64,652
Operating loss	(109,988)	(85,747)	(50,708)
Interest expense	5,912	1,891	1
Loss on derivative liability	15,411	533
Loss before income tax expense (benefit)	(131,311)	(88,171)	(50,709)
Income tax expense (benefit)	85	(265)	(54)
Net loss	(131,396)	(87,906)	(50,655)
Less: net loss attributable to non-controlling interests	(226)	(191)	(55)
Net loss attributable to Athenex, Inc.	(131,170)	(87,715)	(50,600)
Unrealized gain (loss) on investment, net of income taxes	(26)	(33)	91
Foreign currency translation adjustment, net of income taxes	1,184	(1,048)	(397)
Comprehensive loss	$ (130,012)	$ (88,796)	$ (50,906)
Net loss per share attributable to Athenex, Inc. common stockholders, basic and diluted (Note 17)	$ (2.63)	$ (2.19)	$ (1.50)
Weighted-average shares used in computing net loss per share attributable to Athenex, Inc. common stockholders, basic and diluted (Note 17)	49,960,925	40,120,908	33,765,751