Geographic and Other Information (Tables)

3 Months Ended

Mar. 31, 2025

Segment Reporting [Abstract]

Schedule of Product Categories

Revenues for the three months ended March 31, 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	$	9,006	$	—	$	3,377	$	5,629	$	9,006
Power Analog Solutions		36,535		36,535		—		—		36,535
	$	45,541	$	36,535	$	3,377	$	5,629	$	45,541

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 statement of operations.

	Three Months Ended
	March 31, 2025		March 31, 2024
Revenues
Power solutions business
Power Analog Solutions	$	39,857	$	36,535
Power IC		4,865		3,377
Total Power solutions business	$	44,722	$	39,912
Transitional Fab 3 foundry services		—		3,526
Total revenues	$	44,722	$	43,438

	Three Months Ended
	March 31, 2025		March 31, 2024
Cost of Sales
Power solutions business
Power Analog Solutions	$	32,757	$	30,901
Power IC		2,603		1,967
Total Power solutions business	$	35,360	$	32,868
Transitional Fab 3 foundry services		—		4,211
Total cost of sales	$	35,360	$	37,079

	Three Months Ended
	March 31, 2025		March 31, 2024
Gross Profit
Power solutions business
Power Analog Solutions	$	7,100	$	5,634
Power IC		2,262		1,410
Total Power solutions business	$	9,362	$	7,044
Transitional Fab 3 foundry services		—		(685	)
Total gross profit	$	9,362	$	6,359

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
	March 31, 2025		March 31, 2024
Korea	$	21,716	$	17,091
Asia Pacific (other than Korea)		20,992		21,089
United States		1,182		338
Europe		832		1,394
Total	$	44,722	$	39,912