CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net loss	$ (2,048)	$ (3,666)
Other comprehensive income (loss), net of tax:
Change in foreign currency translation gain (loss), net of tax	(2,010)	887
Change in unrealized gain on available-for-sale debt investments, net of tax	7	111
Total other comprehensive income (loss), net of tax	(2,003)	998
Comprehensive loss attributable to AXT, Inc.	(4,051)	(2,668)
Less: Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interests	341	178
Comprehensive loss attributable to AXT, Inc.	$ (3,710)	$ (2,490)