The amount of additional debt borrowed during the period

No definition available.

Name:	axti_DebtInstrumentAdditionalAmountBorrowed
Namespace Prefix:	axti_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The amount of guarantee fee paid under the agreement.

+ References

No definition available.

+ Details

Name:	axti_DebtInstrumentGuaranteeFeeAmount
Namespace Prefix:	axti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The percentage of guarantee fee paid of the loan amount.

+ References

No definition available.

+ Details

Name:	axti_DebtInstrumentGuaranteeFeePercentage
Namespace Prefix:	axti_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The period of renewal option under the debt instrument.

+ References

No definition available.

+ Details

Name:	axti_DebtInstrumentRepaymentRenewalPeriod
Namespace Prefix:	axti_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_DebtCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910

+ Details

Name:	us-gaap_LineOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Name:	us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_ProceedsFromLongTermLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

+ Details

Name:	us-gaap_RepaymentsOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Name:	us-gaap_RepaymentsOfLinesOfCredit
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of time deposit liabilities, including certificates of deposit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=116652737&loc=d3e64164-112818

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878

+ Details

Name:	us-gaap_TimeDeposits
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=axti_BankOfChinaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidatedEntitiesAxis=axti_BeijingTongmeiXtalTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=axti_LinesOfCreditCurrentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=axti_SecuredDebtDueOnJanuary2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=axti_SecuredDebtDueOnSeptember2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=axti_SecuredDebtDueOnApril2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=axti_BankOfBeijingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=axti_IndustrialBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=axti_NingBoBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidatedEntitiesAxis=axti_BeijingBoyuSemiconductorVesselCraftworkTechnologyCo.LtdInvestmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=axti_IndustrialAndCommercialBankOfChinaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=axti_BankOfCommunicationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidatedEntitiesAxis=axti_ChaoYangJinMeiGalliumLtd.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=axti_ChinaMerchantsBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_UnsecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Bank Loans and Line of Credit (Details) - USD ($) $ in Thousands			1 Months Ended									12 Months Ended
	Sep. 12, 2019	Aug. 09, 2019	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Apr. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Aug. 31, 2020	Mar. 31, 2020	Feb. 29, 2020	Dec. 31, 2019	Aug. 31, 2022	Jun. 30, 2022	May 31, 2022	Apr. 30, 2022	Jan. 31, 2022	Nov. 30, 2021	Jun. 30, 2021	Oct. 31, 2020
Bank Of China \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														$ 0
Bank Of China \| Secured debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 5,800						$ 3,100
Repayments of line of credit			$ 2,700		$ 3,100	$ 5,600
Letters of credit outstanding					$ 2,700														$ 5,800
Proceeds from credit facility	$ 2,800	$ 2,800
Interest rate					3.85%			3.85%											4.70%	4.70%
Combined loan totals																				$ 5,600
Renewal period								6 months
Additional loan borrowed																				$ 2,700
Repayments of loan									$ 5,900
Bank Of China \| Secured debt \| Beijing Tongmei Xtal Technology \| Prime Rate
Debt Instrument [Line Items]
Variable rate spread (as a percent)		0.40%										4.70%
Bank Of China \| Secured debt due on January 2023 \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity																	$ 4,400
Interest rate																	4.55%
Bank Of China \| Secured debt due on January 2023 \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														4,200
Bank Of China \| Secured debt due on September 2022 \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 3,100
Interest rate			3.70%
Bank Of China \| Secured debt due on September 2022 \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														3,000
Bank Of China \| Secured debt due on April 2023 \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity																$ 1,500
Interest rate																4.20%
Bank Of China \| Secured debt due on April 2023 \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														1,500
Bank Of Beijing
Debt Instrument [Line Items]
Maximum borrowing capacity														3,400
Bank Of Beijing \| Secured debt
Debt Instrument [Line Items]
Time deposit														3,900
Bank Of Beijing \| Secured debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity															$ 3,400
Time deposit															$ 3,900
Interest rate															4.20%
Bank Of Beijing \| Secured debt \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														3,400
Industrial Bank \| Secured debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity														$ 6,000
Interest rate														4.35%
Industrial Bank \| Secured debt \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														$ 6,000
NingBo Bank \| Secured debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity														$ 1,500
Interest rate														4.80%
NingBo Bank \| Secured debt \| Beijing Tongmei Xtal Technology \| Subsequent Event
Debt Instrument [Line Items]
Maximum borrowing capacity													$ 1,500
Interest rate													4.80%
NingBo Bank \| Secured debt \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														$ 1,500
NingBo Bank \| Secured debt \| Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment
Debt Instrument [Line Items]
Maximum borrowing capacity														$ 1,500
Interest rate														4.80%
NingBo Bank \| Secured debt \| Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														$ 1,500
ICBC \| Secured debt \| Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment
Debt Instrument [Line Items]
Maximum borrowing capacity											$ 1,400
Annual interest rate at end							4.30%
Repayments of line of credit				$ 1,600			$ 400
Letters of credit outstanding				$ 1,600			$ 1,500
Proceeds from lines of credit										$ 400
Interest rate				3.92%
ICBC \| Secured debt \| Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														1,500
ICBC \| Secured debt \| Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment \| Prime Rate
Debt Instrument [Line Items]
Variable rate spread (as a percent)							0.07%				0.15%
Bank of Communications \| Secured debt \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														1,500
Bank of Communications \| Secured debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity					$ 3,100												$ 1,600	$ 1,600
Letters of credit outstanding																		$ 4,700
Interest rate					4.00%												3.30%
Bank of Communications \| Secured debt \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														4,500
Bank of Communications \| Secured debt \| ChaoYang JinMei Gallium Ltd.
Debt Instrument [Line Items]
Maximum borrowing capacity																	$ 1,600
Interest rate																	3.30%
Bank of Communications \| Secured debt \| ChaoYang JinMei Gallium Ltd. \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														1,500
China Merchants Bank \| Secured debt \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														1,500
China Merchants Bank \| Secured debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 1,600
Interest rate				3.55%
Guarantee fee (as a percent)				1.50%
Amount of guarantee fee				$ 24
China Merchants Bank \| Unsecured Debt \| Beijing Tongmei Xtal Technology
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 1,600
Interest rate				4.22%
China Merchants Bank \| Unsecured Debt \| Beijing Tongmei Xtal Technology \| Bank loan
Debt Instrument [Line Items]
Letters of credit outstanding														$ 1,500