XML 58 R47.htm IDEA: XBRL DOCUMENT
v3.19.1

Investments in Privately-Held Companies (Details) |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 15, 2018 USD ($) installment | Nov. 02, 2017 USD ($) | Sep. 30, 2018 USD ($) employee entity | Mar. 31, 2019 USD ($) employee subsidiary entity item | Mar. 31, 2018 USD ($) subsidiary entity | Dec. 31, 2018 USD ($) | Mar. 11, 2019 | Mar. 10, 2019 | Aug. 31, 2018 | Jun. 14, 2018 | Nov. 01, 2017
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Direct investments | item |  |  |  | 6 |  |  |  |  |  |  |
Indirect investments | item |  |  |  | 1 |  |  |  |  |  |  |
Investments, equity method |  |  |  | $ 4,276,000 |  | $ 3,958,000 |  |  |  |  |
Proceeds from sale of previously consolidated subsidiary shares |  |  |  | 366,000 |  |  |  |  |  |  |
Gain on deconsolidation |  |  |  | 175,000 |  |  |  |  |  |  |
Additional percentage of ownership, consolidated method |  |  | 2 |  |  |  |  |  |  |  |
Remainder portion of payment |  |  |  | $ 1,176,000 |  | 1,147,000 |  |  |  |  |
Number of persons on board | employee |  |  | 1 |  |  |  |  |  |  |  |
Number of consolidated joint ventures | subsidiary |  |  |  | 1 | 1 |  |  |  |  |  |
Net income attributable to noncontrolling interests |  |  |  | $ 81,000 | $ 315,000 |  |  |  |  |  |
Direct minority investments not consolidated | entity |  |  |  | 4 |  |  |  |  |  |  |
Impairment charge |  |  |  | $ 1,100,000 |  | 0 |  |  |  |  |
Impaired entities | entity |  |  |  | 1 |  |  |  |  |  |  |
Joint Ventures |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Indirect investments | entity |  |  |  | 1 |  |  |  |  |  |  |
Number of consolidated joint ventures | entity |  |  | 3 | 3 | 3 |  |  |  |  |  |
Income from consolidated joint ventures |  |  |  | $ 700,000 | $ 1,400,000 |  |  |  |  |  |
Net income attributable to noncontrolling interests |  |  |  | 81,000 | 315,000 |  |  |  |  |  |
Net income from joint ventures attributable to parent |  |  |  | 600,000 | $ 1,100,000 |  |  |  |  |  |
Other assets |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, equity method |  |  |  | 6,900,000 |  | 8,400,000 |  |  |  |  |
Other assets | Joint Ventures |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Value of indirectly owned minority investments in privately-held companies |  |  |  | $ 2,600,000 |  | 4,500,000 |  |  |  |  |
Xilingol Tongli Germanium Co. Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership, equity method (in hundredths) |  |  |  | 25.00% |  |  |  |  |  |  |
Direct minority investments not consolidated | entity |  |  |  | 1 |  |  |  |  |  |  |
Donghai County Dongfang High Purity Electronic Materials Co., Ltd Investment | Donghai County Dongfang High Purity Electronic Materials Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, equity method |  |  |  | $ 1,459,000 |  | 1,416,000 |  |  |  |  |
Percentage of ownership, equity method (in hundredths) |  |  |  | 46.00% |  |  |  |  |  |  |
Beijing JiYa Semiconductor Material Co., Ltd Investment | Beijing JiYa Semiconductor Material Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, equity method |  |  |  | $ 2,027,000 |  |  |  |  |  |  |
Percentage of ownership, equity method (in hundredths) |  |  |  | 39.00% |  |  |  |  |  |  |
Xilingol Tongli Germanium Co. Ltd Investment | Xilingol Tongli Germanium Co. Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, equity method |  |  |  | $ 0 |  | 1,700,000 |  |  |  |  |
Percentage of ownership, equity method (in hundredths) |  |  |  | 25.00% |  |  |  |  |  |  |
Emeishan Jia Mei High Purity Metals Co., Ltd Investment | Emeishan Jia Mei High Purity Metals Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, equity method |  |  |  | $ 790,000 |  | 842,000 |  |  |  |  |
Percentage of ownership, equity method (in hundredths) |  |  |  | 25.00% |  |  |  |  |  |  |
Beijing JiYa Semiconductor Material Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership, consolidated method (in hundredths) |  |  |  |  |  |  | 39.00% | 46.00% |  |  |
Nanjing JinMei Gallium Co., Ltd |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Number of new board representatives | employee |  |  |  | 2 |  |  |  |  |  |  |
Beijing Boyu Semiconductor Vessel Craftwork Technology Co Ltd |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Number of persons on board | employee |  |  |  | 2 |  |  |  |  |  |  |
Majority-Owned Subsidiaries |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, consolidated method |  |  |  | $ 1,938,000 |  | 5,269,000 |  |  |  |  |
Nanjing JinMei Gallium Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, consolidated method |  |  |  | 592,000 |  | 592,000 |  |  |  |  |
Additional percentage of ownership, consolidated method | 12 |  |  |  |  |  |  |  |  |  |
Purchase of subsidiary shares from noncontrolling interest | $ 1,400,000 |  | $ 252,000 |  |  |  |  |  |  |  |
Number of installments | installment | 2 |  |  |  |  |  |  |  |  |  |
Payment of first installment | $ 163,000 |  |  |  |  |  |  |  |  |  |
Remainder portion of payment |  |  |  | $ 1,200,000 |  |  |  |  |  |  |
Nanjing JinMei Gallium Co., Ltd Investment | Nanjing JinMei Gallium Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership, consolidated method (in hundredths) |  |  |  | 97.00% |  |  |  |  | 95.00% | 83.00% |
Beijing JiYa Semiconductor Material Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, consolidated method |  |  |  |  |  | 3,331,000 |  |  |  |  |
Beijing JiYa Semiconductor Material Co., Ltd Investment | Beijing JiYa Semiconductor Material Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership, consolidated method (in hundredths) |  |  |  | 46.00% |  |  |  |  |  |  |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Investments, consolidated method |  |  |  | $ 1,346,000 |  | $ 1,346,000 |  |  |  |  |
Gain (loss) from equity transaction |  | $ 0 |  |  |  |  |  |  |  |  |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment | 3rd party investor |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Percentage ownership from issuance of shares |  | 10.00% |  |  |  |  |  |  |  |  |
Raised additional capital |  | $ 2,000,000 |  |  |  |  |  |  |  |  |
Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment | Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment |  |  |  |  |  |  |  |  |  |  |
Summary of investments [Abstract] |  |  |  |  |  |  |  |  |  |  |
Percentage of ownership, consolidated method (in hundredths) |  |  |  | 63.00% |  |  |  |  |  |  | 70.00%

X
- Definition The parent entity's additional interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | axti_AdditionalMinorityOwnershipPercentageByParent
Namespace Prefix: | axti_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Carrying amount of the minority interests owned indirectly by privately-held companies included in the entity's consolidated financial statements. + References No definition available. + Details
Name: | axti_CarryingValueIndirectMinorityInvestments
Namespace Prefix: | axti_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of current obligation payable to noncontrolling interests for subsidiary shares. + References No definition available. + Details
Name: | axti_CurrentPayableConnectionPurchaseSubsidiaryShares
Namespace Prefix: | axti_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents direct investments by the entity. Recorded by equity and consolidated methods. + References No definition available. + Details
Name: | axti_DirectInvestmentsEquityAndConsolidated
Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of net income (loss) generated by joint ventures in which entity has investment. + References No definition available. + Details
Name: | axti_IncomeLossFromConsolidatedJointVentures
Namespace Prefix: | axti_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total investments in (A) entities in which the entity has significant influence and control, (B) joint ventures that are consolidated, but (C) entities in which local management manage daily operations, (D) entities that not required additional investment of financial support from the parent entity. + References No definition available. + Details
Name: | axti_InvestmentsInJointVenturesConsolidated
Namespace Prefix: | axti_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents information pertaining to minority investments in privately held companies through consolidated joint ventures. + References No definition available. + Details
Name: | axti_MinorityInvestmentsInPrivatelyHeldCompanies
Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents amount of net income (loss) generated by consolidated joint ventures attributable to parent after allocating the share of minority interest. + References No definition available. + Details
Name: | axti_NetIncomeLossFromJointVenturesAttributableToParent
Namespace Prefix: | axti_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- 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

X
- Definition Represents the number of direct minority investment entities that are not consolidated. + References No definition available. + Details
Name: | axti_NumberOfDirectMinorityInvestmentEntities
Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of fully impaired entities. + References No definition available. + Details
Name: | axti_NumberOfFullyImpairedEntities
Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of new board representatives + References No definition available. + Details
Name: | axti_NumberOfNewBoardRepresentatives
Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of payment installments. + References No definition available. + Details
Name: | axti_NumberOfPaymentInstallments
Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of individuals on the board + References No definition available. + Details
Name: | axti_NumberOfPersonsOnBoard
Namespace Prefix: | axti_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the equivalent percentage of ownership from the issuance of shares. + References No definition available. + Details
Name: | axti_PercentageIncreaseInOwnershipFromShareIssuance
Namespace Prefix: | axti_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | invest_InvestmentsScheduleAbstract
Namespace Prefix: | invest_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
Name: | us-gaap_AssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents a sale (new stock issuance) by a subsidiary to noncontrolling interests (third parties, parties directly or indirectly unrelated to parent) during the period. The capital transaction by subsidiary does not result in a loss of control by the parent, but does effect a change in total (consolidated) equity attributable to the parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 + Details
Name: | us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesIssuanceOfEquityBySubsidiaryToNoncontrollingInterests
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents the purchase by the parent of an additional equity interest in a subsidiary during the period, thereby effecting a change in total (consolidated) equity attributable to the parent. The purchase of the additional equity interest represented by this element increases the parent's controlling interest in the subsidiary. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4M -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591554-111686 + Details
Name: | us-gaap_ConsolidationLessThanWhollyOwnedSubsidiaryParentOwnershipInterestChangesPurchaseOfInterestByParent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of gain (loss) from deconsolidation of subsidiary and derecognition of group of assets constituting transfer of business or nonprofit activity, excluding conveyance of oil and gas mineral rights and transfer of good or service in contract with customer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4582445-111684 + Details
Name: | us-gaap_DeconsolidationGainOrLossAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_EquityMethodInvestments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of gain (loss) on sale or disposal of equity in securities of subsidiaries or equity method investee. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(9)(a)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(13)(g)) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(b)(7)(c)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(3)(a)) -URI http://asc.fasb.org/extlink&oid=114873790&loc=SL114874131-224263 + Details
Name: | us-gaap_GainLossOnSaleOfStockInSubsidiaryOrEquityMethodInvestee
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The parent entity's interest in net assets of the subsidiary, expressed as a percentage. + References No definition available. + Details
Name: | us-gaap_MinorityInterestOwnershipPercentageByParent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of Net Income (Loss) attributable to noncontrolling interest. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669625-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669619-108580 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 55 -Paragraph 4J -URI http://asc.fasb.org/extlink&oid=84234705&loc=SL4591551-111686 + Details
Name: | us-gaap_NetIncomeLossAttributableToNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest. + 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 -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsToMinorityShareholders
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585 + Details
Name: | us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_CorporateJointVentureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=axti_XilingolTongliGermaniumCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=axti_DonghaiCountyDongfangHighPurityElectronicMaterialsCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=axti_DonghaiCountyDongfangHighPurityElectronicMaterialsCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=axti_BeijingJiyaSemiconductorMaterialCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=axti_BeijingJiyaSemiconductorMaterialCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=axti_XilingolTongliGermaniumCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=axti_EmeishanJiaMeiHighPurityMetalsCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=axti_EmeishanJiaMeiHighPurityMetalsCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=axti_BeijingJiyaSemiconductorMaterialCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=axti_NanjingJinMeiGalliumCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=axti_BeijingBoyuSemiconductorVesselCraftworkTechnologyCoLtdMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=axti_NanjingJinMeiGalliumCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=axti_NanjingJinMeiGalliumCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=axti_BeijingJiyaSemiconductorMaterialCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=axti_BeijingBoyuSemiconductorVesselCraftworkTechnologyCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_InvestorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_OwnershipAxis=axti_BeijingBoyuSemiconductorVesselCraftworkTechnologyCo.LtdInvestmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |