CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CONSOLIDATED STATEMENTS OF OPERATIONS
Revenue	$ 31,350	$ 20,723
Cost of revenue	19,814	15,201
Gross profit	11,536	5,522
Operating expenses:
Selling, general and administrative	5,570	4,749
Research and development	2,405	1,407
Total operating expenses	7,975	6,156
Income (loss) from operations	3,561	(634)
Interest expense, net	(50)	(29)
Equity in income (loss) of unconsolidated joint ventures	1,111	(120)
Other income (expense), net	(111)	1,366
Income before provision for income taxes	4,511	583
Provision for income taxes	746	366
Net income	3,765	217
Less: Net income attributable to noncontrolling interests and redeemable noncontrolling interests	(340)	(395)
Net income (loss) attributable to AXT, Inc.	$ 3,425	$ (178)
Net income (loss) attributable to AXT, Inc. per common share:
Basic	$ 0.08	$ (0.01)
Diluted	$ 0.08	$ (0.01)
Weighted-average number of common shares outstanding:
Basic	41,004	39,812
Diluted	42,726	39,812