The amount of increase in noncontrolling interests due to transfer of subsidiary with noncontrolling interests.

No definition available.

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The amount of increase in redeemable noncontrolling interests due to transfer of subsidiary with noncontrolling interests.

+ References

No definition available.

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- Definition

The amount of joint venture investment funds collected.

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No definition available.

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Represents the number of minority investment entities that are not consolidated and are accounted for under the equity method.

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No definition available.

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The percentage of equity issued on conversion of noncontrolling interests.

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No definition available.

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The percentage of equity purchased by employees, key managers and Contributors.

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No definition available.

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The total investment value of a joint venture agreement.

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No definition available.

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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.

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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.

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No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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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.

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Cost of the investment.

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group.

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Basis of Presentation (Details) $ in Thousands		1 Months Ended				3 Months Ended	12 Months Ended
Basis of Presentation (Details) $ in Thousands	Jan. 25, 2021 USD ($)	Jun. 30, 2021 USD ($)	May 31, 2021 USD ($)	Feb. 28, 2021 USD ($)	Jan. 31, 2021 USD ($)	Mar. 31, 2022 USD ($) company	Dec. 31, 2021 USD ($) company	Dec. 31, 2020 USD ($)	Jan. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Nov. 30, 2020	May 31, 2019	Apr. 30, 2019
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of equity method investments \| company						5	5
Investments, equity method						$ 11,312	$ 10,166
AXT-Tongmei, Inc \| Disposal Group, Disposed of by Sale, Not Discontinued Operations
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Cash consideration		$ 1,000
ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd \| Loan from related party \| ChaoYang Xinshuo
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Loan amount										$ 1,000	$ 900
ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Investment value, agreement amount			$ 1,800	$ 3,000
Investments, equity method				$ 1,800
Ownership (as a percent)			58.50%	58.50%					58.50%
Initial funding			$ 1,500	$ 1,500
Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd Investment
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Percentage of outstanding shares								33.00%
Percentage of ownership								67.00%				63.00%
Beijing Tongmei Xtal Technology
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Percentage of outstanding shares	7.28%					14.50%
Private equity ownership percentage	7.28%					14.50%
Percentage of key managers and contributors purchased								0.40%
Investment in new facility	$ 49,000							$ 48,100
Raised additional capital					$ 1,500
Percentage of ownership		85.50%
Transaction results in increase to noncontrolling interests		$ 1,200
Transaction results in increase to redeemable noncontrolling interests		$ 1,200
Beijing Tongmei Xtal Technology \| Beijing Boyu Semiconductor Vessel Craftwork Technology Co Ltd
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Private equity ownership percentage								7.59%
Beijing Tongmei Xtal Technology \| Nanjing JinMei Gallium Co., Ltd
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Private equity ownership percentage								0.38%
Beijing Tongmei Xtal Technology \| ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Loan amount							$ 1,400		$ 1,400
Beijing Tongmei Xtal Technology \| ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Investment amount			$ 900	$ 900
Nanjing JinMei Gallium Co., Ltd Investment
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Percentage of outstanding shares								8.50%
Percentage of ownership													100.00%	97.00%
Nanjing JinMei Gallium Co., Ltd Investment \| Nanjing JinMei Gallium Co., Ltd
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Private equity ownership percentage								0.38%