Note 8 - Segment, Significant Customers and Geographic Information (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Three Months Ended September 30,						Nine Months Ended September 30,
Customer	2024			2023			2024			2023
Distributor A		24	%		27	%		33	%		23	%
Distributor B		25	%		21	%		19	%		21	%
Distributor C		*			11	%		*			10	%

	September 30,			December 31,
Customer	2024			2023
Distributor A		25	%		42	%
Distributor B		25	%		13	%
Distributor C		10	%		10	%

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
Country or Region	2024		2023		2024		2023
China	$	310,472	$	234,924	$	856,026	$	676,148
Taiwan		179,747		103,537		407,593		222,582
South Korea		51,815		41,698		126,865		128,047
Europe		25,145		29,827		61,992		109,278
United States		13,797		23,565		42,544		82,153
Southeast Asia		22,772		22,538		47,363		70,678
Japan		16,286		18,605		42,786		77,708
Other		85		173		266		466
Total	$	620,119	$	474,867	$	1,585,435	$	1,367,060

Revenue from External Customers by Products and Services [Table Text Block]

	Three Months Ended September 30,				Nine Months Ended September 30,
Product Family	2024		2023		2024		2023
Direct Current (“DC”) to DC	$	616,105	$	447,394	$	1,563,472	$	1,290,750
Lighting Control		4,014		27,473		21,963		76,310
Total	$	620,119	$	474,867	$	1,585,435	$	1,367,060

The following is a summary of long-lived assets by geographic region (in thousands):

Schedule of Disclosure on Geographic Areas, Long-Lived Assets in Individual Foreign Countries by Country [Table Text Block]

	September 30,		December 31,
Country	2024		2023
China	$	237,113	$	184,685
United States		125,952		119,430
Taiwan		39,929		39,419
Other		33,271		25,418
Total	$	436,265	$	368,952