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Note 7 - Investments in Privately-Held Raw Material Companies (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Investment [Table Text Block]

		Investment Balance as of
		September 30,				December 31,			Accounting		Ownership
Company		2025				2024			Method		Percentage
Nanjing JinMei Gallium Co., Ltd.		$	592			$	592		Consolidated			** 85.5	%
ChaoYang JinMei Gallium Co., Ltd.			1,820				1,820		Consolidated			** 85.5	%
Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd.			1,346				1,346		Consolidated			** 85.5	%
ChaoYang ShuoMei High Purity Semiconductor Materials Co., Ltd.			3,122				3,122		Consolidated			**** 75.0	%
ChaoYang XinMei High Purity Semiconductor Materials Co., Ltd.			7,331				7,331		Consolidated			*** 58.5	%
		$	14,211			$	14,211
Beijing JiYa Semiconductor Material Co., Ltd.		$	4,305			$	4,867		Equity			39	%
Xiaoyi XingAn Gallium Co., Ltd.			5,666				5,304		Equity			** 25	%
ChaoYang KaiMei Quartz Co., Ltd.			4,648				3,895		Equity			***** 40	%
		$	14,619			$	14,066
Emeishan Jia Mei High Purity Metals Co., Ltd.			702				551		Fair value			****** 7.1	%
		$	702			$	551

Equity Method Investments, Summarized Income Information [Table Text Block]

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2025				2024				2025				2024
Net revenue		$	8,870			$	10,473			$	24,591			$	27,915
Gross profit		$	1,902			$	4,876			$	5,708			$	12,966
Operating income		$	1,135			$	4,135			$	3,428			$	11,541
Net income (loss)		$	817			$	3,443			$	1,591			$	8,624

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/320/tableOfContent

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Topic 321
-Publisher FASB
-URI https://asc.fasb.org/321/tableOfContent

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
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-Publisher FASB
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