Revenues

3 Months Ended

Mar. 31, 2025

Revenue from Contract with Customer [Abstract]

Revenues

6. Revenues

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

	Three Months Ended March 31, 2025
	Brick Products		Advanced Products		Total
United States	$	13,535	$	23,307	$	36,842
Europe		7,773		2,100		9,873
Asia Pacific		12,801		34,286		47,087
All other		2		164		166
	$	34,111	$	59,857	$	93,968

	Three Months Ended March 31, 2024
	Brick Products		Advanced Products		Total
United States	$	20,974	$	27,186	$	48,160
Europe		6,857		3,999		10,856
Asia Pacific		12,268		12,052		24,320
All other		493		43		536
	$	40,592	$	43,280	$	83,872

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

	Three Months Ended March 31, 2025
	Brick Products		Advanced Products		Total
Direct customers, contract manufacturers and    non-stocking distributors	$	18,282	$	43,488	$	61,770
Stocking distributors, net of sales allowances		15,364		3,846		19,210
Non-recurring engineering		465		1,401		1,866
Royalties		—		10,762		10,762
Other		—		360		360
	$	34,111	$	59,857	$	93,968

	Three Months Ended March 31, 2024
	Brick Products		Advanced Products		Total
Direct customers, contract manufacturers and    non-stocking distributors	$	20,810	$	21,640	$	42,450
Stocking distributors, net of sales allowances		19,407		9,632		29,039
Non-recurring engineering		375		3,468		3,843
Royalties		—		8,180		8,180
Other		—		360		360
	$	40,592	$	43,280	$	83,872

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

	March 31, 2025			December 31, 2024			Change
Short-term deferred revenue and customer prepayments	$	(6,624	)	$	(5,312	)	$	(1,312	)
Sales allowances		(2,114	)		(1,667	)		(447	)

The Company records deferred revenue, which represents a contract liability, when cash payments are received or due in advance of performance under a contract with a customer. The Company recognized revenue of $1,326,000 and $360,000 for the three months ended March 31, 2025 and 2024, respectively, that was included in deferred revenue at the beginning of the respective period.