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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, 2024	Dec. 31, 2023
Investments in Privately-Held Raw Material Companies
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	551,000
Percentage of equity interest sold				15.00%
Emeishan Jia Mei High Purity Metals Co., Ltd Investment
Investments in Privately-Held Raw Material Companies
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	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
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%

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