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v3.25.2

Note 12 - Commitments and Contingencies (Details Textual) Pure in Thousands, $ in Millions | 3 Months Ended
--- | ---
Jun. 30, 2025 USD ($)
Product Warranty Obligation, Term (Year) | 12 years
Outstanding Purchase Orders | 0
Cross License Agreement [Member] |
License Agreement, Term (Year) | 10 years
Land Purchase and Investment Agreement [Member] |
Land Purchase and Investment Agreement, Total Value | $ 90
Kazuo AXT Investment [Member] |
Land Purchase and Investment Agreement, Total Value | 15
Kazuo Boyu Investment [Member] |
Land Purchase and Investment Agreement, Total Value | $ 8

X
- Definition Represents the total value of assets and capital invested into an agreement for a land purchase and investment agreement. + References No definition available. + Details
Name: | axti_LandPurchaseAndInvestmentAgreementTotalValue
Namespace Prefix: | axti_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the term of a license agreement. + References No definition available. + Details
Name: | axti_LicenseAgreementTerm
Namespace Prefix: | axti_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of outstanding purchase orders as of a given date. + References No definition available. + Details
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Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Term of warranty or group of similar warranties, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=axti_LandPurchaseAndInvestmentAgreementMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=axti_KazuoIAxtnvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_TypeOfArrangementAxis=axti_KazuoBoyuInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |