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Geographic and Other Information (Tables)

9 Months Ended

Sep. 30, 2025

Segment Reporting [Abstract]

Schedule of Product Categories

Revenues for the three months ended September 30, 2024 from its previous product categories have been reclassified in order to conform to the current period presentation as follows (in thousands):

						Power Analog Solutions				Power IC				Discontinued Operations				Total
Mixed-Signal Solutions		$	16,446			$	—			$	5,420			$	11,026			$	16,446
Power Analog Solutions			47,574				47,574				—				—				47,574
		$	64,020			$	47,574			$	5,420			$	11,026			$	64,020

Revenues for the nine months ended September 30, 2024 from its previous product categories have been reclassified in order to conform to the current period presentation as follows (in thousands):

						Power Analog Solutions				Power IC				Discontinued Operations				Total
Mixed-Signal Solutions		$	37,047			$	—			$	13,621			$	23,426			$	37,047
Power Analog Solutions			123,349				123,349				—				—				123,349
		$	160,396			$	123,349			$	13,621			$	23,426			$	160,396

Schedule of Operating Segments

The following sets forth information relating to the operating segment, Power solutions business, as well as the transitional Fab 3 foundry services (in thousands). For financial information below gross profit, including operating income and expenses as well as other income and expenses, please refer to the Company’s consolidated statements of operations.

		Three Months Ended								Nine Months Ended
		September 30, 2025				September 30, 2024				September 30, 2025				September 30, 2024
Revenues
Power solutions business
Power Analog Solutions		$	41,548			$	47,574			$	123,666			$	123,349
Power IC			4,398				5,420				14,624				13,621
Total Power solutions business			45,946				52,994				138,290				136,970
Transitional Fab 3 foundry services			—				2,440				—				8,302
Total revenues		$	45,946			$	55,434			$	138,290			$	145,272

		Three Months Ended								Nine Months Ended
		September 30, 2025				September 30, 2024				September 30, 2025				September 30, 2024
Cost of Sales
Power solutions business
Power Analog Solutions		$	34,906			$	38,325			$	102,215			$	100,751
Power IC			2,499				3,004				8,460				7,603
Total Power solutions business			37,405				41,329				110,675				108,354
Transitional Fab 3 foundry services			—				2,599				—				9,267
Total cost of sales		$	37,405			$	43,928			$	110,675			$	117,621

		Three Months Ended								Nine Months Ended
		September 30, 2025				September 30, 2024				September 30, 2025				September 30, 2024
Gross Profit
Power solutions business
Power Analog Solutions		$	6,642			$	9,249			$	21,451			$	22,598
Power IC			1,899				2,416				6,164				6,018
Total Power solutions business			8,541				11,665				27,615				28,616
Transitional Fab 3 foundry services			—				(159	)			—				(965	)
Total gross profit		$	8,541			$	11,506			$	27,615			$	27,651

Net Sales by Region, Based on Location of Products are Billed

The following is a summary of net sales – Power solutions business by geographic region, based on the location to which the products are billed (in thousands):

		Three Months Ended								Nine Months Ended
		September 30, 2025				September 30, 2024				September 30, 2025				September 30, 2024
Korea		$	23,269			$	22,893			$	67,706			$	59,867
Asia Pacific (other than Korea)			20,308				28,189				63,745				71,879
United States			1,137				667				3,789				1,313
Europe			1,232				1,245				3,050				3,911
Total		$	45,946			$	52,994			$	138,290			$	136,970

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