XML 101 R66.htm IDEA: XBRL DOCUMENT v3.24.0.1
Investments in Privately-held Raw Material Companies - Minority Investment Entities (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Summarized income information of all the minority investment entities that are not consolidated and accounted for under the equity method [Abstract]                      
Net revenue $ 20,429 $ 17,366 $ 18,595 $ 19,405 $ 26,795 $ 35,183 $ 39,487 $ 39,653 $ 75,795 $ 141,118 $ 137,393
Gross profit 4,627 $ 1,866 $ 1,715 $ 5,110 8,596 $ 14,782 $ 15,435 $ 13,308 13,318 52,121 47,414
Net income                 (19,193) 18,742 16,509
Minority investment entities                      
Current assets 170,656       183,545       170,656 183,545  
Current liabilities 81,557       75,326       81,557 75,326  
Undistributed retained earnings                 8,100 9,200  
Five Minority Investments                      
Summarized income information of all the minority investment entities that are not consolidated and accounted for under the equity method [Abstract]                      
Net revenue                 32,544 48,139 35,939
Gross profit                 11,698 27,000 17,465
Operating income                 10,115 24,987 14,293
Net income                 8,681 19,104 12,560
Minority investment entities                      
Current assets 31,636       43,091       31,636 43,091  
Noncurrent assets 19,751       12,520       19,751 12,520  
Current liabilities $ 7,367       $ 10,552       7,367 10,552  
Five Minority Investments                      
Minority investment entities                      
Entity income (loss) excluding impairment                 1,900 6,000 4,400
AXT, Inc. Stockholders' Equity                      
Summarized income information of all the minority investment entities that are not consolidated and accounted for under the equity method [Abstract]                      
Net revenue                 10,033 15,031 11,424
Gross profit                 3,365 8,229 5,482
Operating income                 2,724 7,532 4,495
Net income                 $ 1,884 $ 5,957 $ 4,409