Stockholders' Equity and Stock Repurchase Program (Tables)

12 Months Ended

Dec. 31, 2020

Stockholders' Equity and Stock Repurchase Program

Schedule of changes in ownership interest in consolidated subsidiaries

	As of December 31,
	2020		2019
Net income (loss) attributable to AXT, Inc.	$	3,238	$	(2,600)
Increase (decrease) in additional paid-in capital for:
Sales of subsidiary shares to noncontrolling interest		396		—
Purchase of subsidiary shares from noncontrolling interest		(1,398)		(74)
Adjustment to noncontrolling interests in connection with the reorganization and alignment of assets under Tongmei		(10,732)		—
Net transfers to noncontrolling interests		(11,734)		(74)
Change from net income (loss) attributable to AXT, Inc., net of transfers to noncontrolling interest	$	(8,496)	$	(2,674)