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Net Income per Share | 12 Months Ended
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Dec. 31, 2013
Net Income per Share [Abstract] |
Net income per Share | Note 14. Net Income per Share A reconciliation of the numerators and denominators of the basic and diluted net income per share calculations is as follows (in thousands, except per share data):
|  | Years Ended December 31, |
|  | 2013 |  |  | 2012 |  |  | 2011 |
Numerator: |  |  |  |  |  |  |  |  |
Net income (loss) attributable to AXT, Inc |  | $ | (7,958 | ) |  | $ | 3,110 |  |  | $ | 20,320 |
Less: Preferred stock dividends |  |  | (177 | ) |  |  | (177 | ) |  |  | (177 | )
Net income (loss) to common stockholders |  | $ | (8,135 | ) |  | $ | 2,933 |  |  | $ | 20,143 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average common shares (basic) |  |  | 32,700 |  |  |  | 32,144 |  |  |  | 31,872 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |
Common stock options |  |  | — |  |  |  | 689 |  |  |  | 1,093 |
Restricted stock awards |  |  | — |  |  |  | 32 |  |  |  | 96 |
Weighted average common shares (dilutive) |  |  | 32,700 |  |  |  | 32,865 |  |  |  | 33,061 |
Basic net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to AXT, Inc |  | $ | (0.25 | ) |  | $ | 0.10 |  |  | $ | 0.64 |
Net income to common stockholders |  | $ | (0.25 | ) |  | $ | 0.09 |  |  | $ | 0.63 |
Diluted net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |
Net income attributable to AXT, Inc |  | $ | (0.25 | ) |  | $ | 0.09 |  |  | $ | 0.61 |
Net income to common stockholders |  | $ | (0.25 | ) |  | $ | 0.09 |  |  | $ | 0.61 |
Options excluded from diluted net income per share as the impact is anti-dilutive |  |  | 2,671 |  |  |  | 1,056 |  |  |  | 478 |
Restricted stock excluded from diluted net income per share as the impact is anti-dilutive |  |  | 241 |  |  |  | 13 |  |  |  | 116 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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