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Stockholders' Equity (Tables) | 9 Months Ended
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Sep. 30, 2017
Stockholders' Equity |
Consolidated statement of changes in equity | Condensed Consolidated Statement of Changes in Stockholders’ Equity (in thousands)
|  |  |  |  |  |  |  |  |  | Accumulated |  |  |  |  |  |  |
|  |  |  |  |  |  |  |  |  |  |  |  |  | Other |  | AXT, Inc |  |  |  | Total |
|  | Preferred |  | Common |  | Additional |  | Accumulated |  | Comprehensive |  | Stockholders’ |  | Noncontrolling |  | Stockholders’ |
|  | Stock |  | Stock |  | Paid-In Capital |  | Deficit |  | Income |  | Equity |  | Interests |  | Equity |
Balance as of December 31, 2016 |  | $ | 3,532 |  | $ | 33 |  | $ | 194,177 |  | $ | (64,985) |  | $ | 253 |  | $ | 133,010 |  | $ | 4,380 |  | $ | 137,390 |
Common stock options exercised |  |  | — |  |  | 1 |  |  | 1,522 |  |  | — |  |  | — |  |  | 1,523 |  |  | — |  |  | 1,523 |
Stock-based compensation |  |  | — |  |  | — |  |  | 961 |  |  | — |  |  | — |  |  | 961 |  |  | — |  |  | 961 |
Issuance of common stock, net of stock issuance costs of $2,639 |  |  | — |  |  | 5 |  |  | 31,856 |  |  | — |  |  | — |  |  | 31,861 |  |  | — |  |  | 31,861 |
Net income (loss) |  |  | — |  |  | — |  |  | — |  |  | 7,014 |  |  | — |  |  | 7,014 |  |  | (226) |  |  | 6,788 |
Dividends declared by joint ventures |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (465) |  |  | (465) |
Other comprehensive income |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 2,022 |  |  | 2,022 |  |  | 337 |  |  | 2,359 |
Balance as of September 30, 2017 |  | $ | 3,532 |  | $ | 39 |  | $ | 228,516 |  | $ | (57,971) |  | $ | 2,275 |  | $ | 176,391 |  | $ | 4,026 |  | $ | 180,417 |

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- Definition Tabular disclosure of changes in the separate accounts comprising stockholders' equity (in addition to retained earnings) and of the changes in the number of shares of equity securities during at least the most recent annual fiscal period and any subsequent interim period presented is required to make the financial statements sufficiently informative if both financial position and results of operations are presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 + Details
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