Geographic and Other Information (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Schedule of Operating Segments

The following sets forth information relating to the operating segment as well as the Transitional Fab 3 Foundry Services (in thousands):

	Year Ended December 31,
	2023		2022		2021
Revenues
Standard products business
Display Solutions	$	32,134	$	71,432	$	205,322
Power Solutions		163,556		230,464		227,777
Total standard products business		195,690		301,896		433,099
Transitional Fab 3 foundry services		34,361		35,762		41,131
Total revenues	$	230,051	$	337,658	$	474,230

	Year Ended December 31,
	2023			2022		2021
Gross Profit
Standard products business	$	51,928		$	99,549	$	149,596
Transitional Fab 3 foundry services		(288	)		1,715		3,947
Total gross profit	$	51,640		$	101,264	$	153,543

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

The following is a summary of net sales—standard products business (which does not include the Transitional Fab 3 Foundry Services) by geographic region, based on the location to which the products are billed (in thousands):

	Year Ended December 31,
	2023		2022		2021
Korea	$	66,817	$	105,285	$	113,776
Asia Pacific (other than Korea)		119,244		179,555		306,333
United States		2,830		10,369		6,052
Europe		6,799		6,687		5,698
Others		—		—		1,240
Total	$	195,690	$	301,896	$	433,099