CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net income (loss)	$ (3,666)	$ 3,972
Other comprehensive income (loss), net of tax:
Change in foreign currency translation gain, net of tax	887	590
Change in unrealized gain (loss) on available-for-sale debt investments, net of tax	111	(172)
Total other comprehensive income, net of tax	998	418
Comprehensive income (loss) attributable to AXT, Inc.	(2,668)	4,390
Less: Comprehensive loss (income) attributable to noncontrolling interests and redeemable noncontrolling interests	178	(898)
Comprehensive income (loss) attributable to AXT, Inc.	$ (2,490)	$ 3,492