CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income	$ 959	$ 1,738	$ 1,176	$ 715
Other comprehensive income (loss), net of tax:
Change in foreign currency translation gain (loss), net of tax	261	(2,474)	(1,613)
Change in unrealized gain on available-for-sale debt investments, net of tax	20	23	21	80
Reclassification adjustment for gains included in net loss upon deconsolidation of a subsidiary				(617)
Total other comprehensive income (loss), net of tax	281	(2,451)	(1,592)	(537)
Comprehensive income (loss)	1,240	(713)	(416)	178
Less: Comprehensive income attributable to noncontrolling interests	(607)	(233)	(904)	(989)
Comprehensive income (loss) attributable to AXT, Inc.	$ 633	$ (946)	$ (1,320)	$ (811)