Stockholders' Equity (Tables)

3 Months Ended

Mar. 31, 2024

Stockholders' Equity

Consolidated statements of stockholders' equity

									Accumulated
									Other		AXT, Inc.				Total
	Preferred		Common		Additional		Accumulated		Comprehensive		Stockholders’		Noncontrolling		Stockholders’
	Stock		Stock		Paid-In Capital		Deficit		Income (Loss)		Equity		Interests		Equity
Balance as of December 31, 2023	$	3,532	$	44	$	238,452	$	(32,040)	$	(5,999)	$	203,989	$	23,494	$	227,483
Common stock options exercised		—		—		20		—		—		20		—		20
Investment in subsidiary with noncontrolling interest		—		—		—		—		—		—		—		—
Investment in subsidiary with redeemable noncontrolling interest		—		—		—		—		—		—		—		—
Noncontrolling interest portion of Tongmei stock-based compensation		—		—		(24)		—		—		(24)		13		(11)
Stock-based compensation		—		—		614		—		—		614		—		614
Tongmei stock-based compensation		—		—		195		—		—		195		—		195
Net loss		—		—		—		(2,083)		—		(2,083)		106		(1,977)
Other comprehensive income		—		—		—		—		(1,627)		(1,627)		(187)		(1,814)
Balance as of March 31, 2024	$	3,532	$	44	$	239,257	$	(34,123)	$	(7,626)	$	201,084	$	23,426	$	224,510

									Accumulated
									Other		AXT, Inc.				Total
	Preferred		Common		Additional		Accumulated		Comprehensive		Stockholders’		Noncontrolling		Stockholders’
	Stock		Stock		Paid-In Capital		Deficit		Income (Loss)		Equity		Interests		Equity
Balance as of December 31, 2022	$	3,532	$	44	$	235,308	$	(14,159)	$	(3,118)	$	221,607	$	23,293	$	244,900
Common stock options exercised		—		—		8		—		—		8		—		8
Investment in subsidiary with noncontrolling interest		—		—		(36)		—		—		(36)		239		203
Investment in subsidiary with redeemable noncontrolling interest		—		—		(36)		—		—		(36)		—		(36)
Noncontrolling interest portion of Tongmei stock-based compensation		—		—		33		—		—		33		(16)		17
Stock-based compensation		—		—		717		—		—		717		—		717
Tongmei stock-based compensation		—		—		198		—		—		198		—		198
Net loss		—		—		—		(3,348)		—		(3,348)		(169)		(3,517)
Other comprehensive income		—		—		—		—		858		858		70		928
Balance as of March 31, 2023	$	3,532	$	44	$	236,192	$	(17,507)	$	(2,260)	$	220,001	$	23,417	$	243,418