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

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Percentage of equity interest sold.

+ 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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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

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

+ References

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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- Definition

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		12 Months Ended
	May 31, 2023	Nov. 30, 2023	May 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Schedule of Equity Method Investments [Line Items]
Fair value of the consideration received				$ 779,000
Gain (loss) recognized on sale				(166,000)
Fair value of the retained investment in Emeishan Jia Mei High Purity Metals Co., Ltd.				$ 551,000	$ 1,887,000
Percentage of equity interest sold				15.00%
Emeishan Jia Mei High Purity Metals Co., Ltd Investment
Schedule of Equity Method Investments [Line Items]
Foreign income tax withholding				$ 48,000
Carrying value				(252,000)
Gain (loss) recognized on sale			$ 575,000	575,000
Fair value of the retained investment in Emeishan Jia Mei High Purity Metals Co., Ltd.				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%		25.00%	10.00%
Donghai County Dongfang High Purity Electronic Materials Co., Ltd Investment
Schedule of Equity Method Investments [Line Items]
Fair value of the consideration received		$ 600,000		$ 585,000
Carrying value				(1,710,000)
Gain (loss) recognized on sale				$ (1,125,000)
Fair value of the retained investment in Emeishan Jia Mei High Purity Metals Co., Ltd.					$ 1,887,000
Percentage of equity interest sold		46.00%		46.00%
Percentage of ownership, cost method		0.00%		0.00%
Percentage of ownership, equity method		46.00%