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Revenue - Revenue Recognition (Details) | 3 Months Ended
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Mar. 31, 2018 subsidiary
Revenue |
Number of subsidiaries | 3
Percentage of Gallium | 99.99%

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- Definition Number of subsidiaries. + References No definition available. + Details
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Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of Gallium. + References No definition available. + Details
Name: | axti_PercentageOfGallium
Namespace Prefix: | axti_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition n/a + References No definition available. + Details
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Namespace Prefix: | axti_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration