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Unaudited Quarterly Consolidated Financial Data (Tables) | 12 Months Ended
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Dec. 31, 2021
Unaudited Quarterly Consolidated Financial Data |
Unaudited Quarterly Consolidated Financial Data | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Quarter |
​ |  | First |  | Second |  | Third |  | Fourth |
​ | ​ | (in thousands, except per share data) |
2021: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Revenue | ​ | $ | 31,350 | ​ | $ | 33,735 | ​ | $ | 34,576 | ​ | $ | 37,732 | ​
Gross profit | ​ |  | 11,536 | ​ |  | 12,238 | ​ |  | 11,501 | ​ |  | 12,139 | ​
Net income attributable to AXT, Inc. | ​ |  | 3,425 | ​ |  | 4,385 | ​ |  | 3,800 | ​ |  | 2,965 | ​
Net income attributable to AXT, Inc. per share, basic | ​ | $ | 0.08 | ​ | $ | 0.11 | ​ | $ | 0.09 | ​ | $ | 0.07 | ​
Net income attributable to AXT, Inc. per share, diluted | ​ | $ | 0.08 | ​ | $ | 0.10 | ​ | $ | 0.09 | ​ | $ | 0.07 | ​
2020: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Revenue | ​ | $ | 20,723 | ​ | $ | 22,134 | ​ | $ | 25,469 | ​ | $ | 27,035 | ​
Gross profit | ​ |  | 5,522 | ​ |  | 6,768 | ​ |  | 8,823 | ​ |  | 9,162 | ​
Net income (loss) attributable to AXT, Inc. | ​ |  | (178) | ​ |  | 361 | ​ |  | 991 | ​ |  | 2,064 | ​
Net income (loss) attributable to AXT, Inc. per share, basic | ​ | $ | (0.01) | ​ | $ | 0.01 | ​ | $ | 0.02 | ​ | $ | 0.05 | ​
Net income (loss) attributable to AXT, Inc. per share, diluted | ​ | $ | (0.01) | ​ | $ | 0.01 | ​ | $ | 0.02 | ​ | $ | 0.05 | ​

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=124502072&loc=d3e1280-108306 + Details
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