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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (Parenthetical) $ in Thousands | Mar. 31, 2019 USD ($) subsidiary | Dec. 31, 2018 USD ($) | Mar. 31, 2018 USD ($) subsidiary
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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS |  |  |
Number of consolidated joint ventures | subsidiary | 1 |  | 1
Dividends accrued but not paid by joint ventures | $ | $ 0 | $ 504 | $ 552

X
- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by joint ventures in which entity has interest and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References No definition available. + Details
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Namespace Prefix: | axti_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Represents number of joint ventures in which entity has interest and therefore has consolidated the figures as the date of reporting. + References No definition available. + Details
Name: | axti_NumberOfConsolidatedJointVentures
Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_StatementOfCashFlowsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration