Revenues (Tables)

12 Months Ended

Dec. 31, 2023

Summary of Net Revenues Based On Geography Location

The following tables present the Company’s net revenues disaggregated by geography based on the location of the customer, by product line (in thousands):

	Year Ended December 31, 2023
	Brick Products		Advanced Products		Total
United States	$	82,400	$	67,056	$	149,456
Europe		31,792		27,950		59,742
Asia Pacific		63,631		128,636		192,267
All other		3,343		251		3,594
	$	181,166	$	223,893	$	405,059

	Year Ended December 31, 2022
	Brick Products		Advanced Products		Total
United States	$	76,306	$	53,116	$	129,422
Europe		27,856		10,522		38,378
Asia Pacific		49,076		179,259		228,335
All other		2,520		424		2,944
	$	155,758	$	243,321	$	399,079

	Year Ended December 31, 2021
	Brick Products		Advanced Products		Total
United States	$	74,280	$	44,360	$	118,640
Europe		32,762		5,145		37,907
Asia Pacific		80,344		120,459		200,803
All other		1,758		256		2,014
	$	189,144	$	170,220	$	359,364

Summary of Net Revenues Disaggregated by Geography

The following tables present the Company’s net revenues disaggregated by the category of revenue, by product line (in thousands):

	Year Ended December 31, 2023
	Brick Products		Advanced Products		Total
Direct customers, contract manufacturers and non-stocking    distributors	$	113,448	$	163,549	$	276,997
Stocking distributors, net of sales allowances		66,544		29,893		96,437
Non-recurring engineering		1,174		13,421		14,595
Royalties		—		15,872		15,872
Other		—		1,158		1,158
	$	181,166	$	223,893	$	405,059

	Year Ended December 31, 2022
	Brick Products		Advanced Products		Total
Direct customers, contract manufacturers and non-stocking    distributors	$	102,905	$	216,685	$	319,590
Stocking distributors, net of sales allowances		51,819		13,831		65,650
Non-recurring engineering		1,034		9,933		10,967
Royalties		—		2,801		2,801
Other		—		71		71
	$	155,758	$	243,321	$	399,079

	Year Ended December 31, 2021
	Brick Products		Advanced Products		Total
Direct customers, contract manufacturers and    non-stocking distributors	$	139,099	$	144,180	$	283,279
Stocking distributors, net of sales allowances		49,359		14,123		63,482
Non-recurring engineering		686		10,027		10,713
Royalties		—		1,819		1,819
Other		—		71		71
	$	189,144	$	170,220	$	359,364

Summary of Changes in Contract Assets And Liabilities

The following table presents the changes in certain contract assets and (liabilities) (in thousands):

	December 31, 2023			December 31, 2022			Change
Short-term deferred revenue and customer prepayments	$	(3,157	)	$	(13,197	)	$	10,040
Long-term deferred revenue		(1,020	)		(145	)		(875	)
Deferred expenses		—			577			(577	)
Sales allowances		(3,482	)		(1,661	)		(1,821	)