Amount of the entity's equity method investment which has been retained.

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The fair value of consideration for sale of equity method investments.

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No definition available.

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Amount of foreign income tax withheld on sale of equity method investments.

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No definition available.

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Amount of gain (loss) on retained equity method investment re measurement.

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No definition available.

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Percentage of equity interest sold.

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No definition available.

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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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Amount of gain (loss) on sale or disposal of an equity method investment.

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Amount of the entity's equity method investment which has been sold.

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No definition available.

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- Definition

Percentage of ownership of equity interest excluding interest in entity that is consolidated and equity method investee.

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Amount of income (loss) for proportionate share of equity method investee's income (loss).

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Includes other investments and securities that are not at fair value as of the balance sheet date and those that are not accounted for under the equity method.

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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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Investments in Privately-Held Raw Material Companies - Gain (Loss) on Sale and Remeasurement of Equity Method Investments (Details) - USD ($)	1 Months Ended		3 Months Ended			6 Months Ended
	Nov. 30, 2023	May 31, 2023	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Investments in Privately-Held Raw Material Companies
Fair value of the retained investment in Emeishan Jia Mei High Purity Metals Co., Ltd.			$ 551,000	$ 551,000		$ 551,000
Percentage of equity interest sold							15.00%
Equity in income of unconsolidated joint ventures			598,000		$ 941,000	1,488,000	$ 1,975,000
Emeishan Jia Mei High Purity Metals Co., Ltd Investment
Investments in Privately-Held Raw Material Companies
Fair value of the consideration received						779,000
Foreign income tax withholding						48,000
Carrying value						(252,000)
Gain (loss) recognized on sale		$ 575,000			958,000	575,000
Fair value of the retained investment in Emeishan Jia Mei High Purity Metals Co., Ltd.			$ 551,000	551,000		551,000
Carrying value of retained noncontrolling investment (10%)						(168,000)
Gain on retained noncontrolling investment due to remeasurement (10%)						$ 383,000
Percentage of equity interest sold		15.00%				15.00%
Percentage of ownership, cost method		10.00%	10.00%			10.00%
Percentage of ownership, equity method		25.00%	10.00%			10.00%
Equity in income of unconsolidated joint ventures					$ 900,000		$ 2,000,000.0
Donghai County Dongfang High Purity Electronic Materials Co., Ltd Investment
Investments in Privately-Held Raw Material Companies
Fair value of the consideration received	$ 600,000			585,000
Carrying value				(1,710,000)
Gain (loss) recognized on sale				$ (1,125,000)
Percentage of equity interest sold	46.00%			46.00%
Percentage of ownership, cost method	0.00%
Percentage of ownership, equity method	46.00%