Revenue (Tables)

9 Months Ended

Sep. 28, 2024

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue from Contracts with Customers

The following tables represent a disaggregation of revenue from contracts with customers for the three and nine months ended September 28, 2024 and September 30, 2023.

Major Products and Service Lines

	Three Months Ended		Three Months Ended
	September 28, 2024		September 30, 2023
	(In thousands)
	HDD		HDD		ASP		Total
Systems, upgrades and spare parts	$	11,833	$	16,033	$	6	$	16,039
Field service		1,318		1,335		97		1,432
Cancellation fee		15,354		444		—		444
Total net revenues	$	28,505	$	17,812	$	103	$	17,915

	Nine Months Ended		Nine Months Ended
	September 28, 2024		September 30, 2023
			(In thousands)
	HDD		HDD		PV		ASP		Total
Systems, upgrades and spare parts	$	33,004	$	35,901	$	28	$	17	$	35,946
Field service		4,304		3,271		—		97		3,368
Cancellation fee		15,354		444		—		—		444
Total net revenues	$	52,662	$	39,616	$	28	$	114	$	39,758

Primary Geographical Markets

	Three Months Ended				Nine Months Ended
	September 28, 2024		September 30, 2023		September 28, 2024		September 30, 2023
	(In thousands)
United States	$	1,716	$	784	$	2,376	$	3,060
Asia		26,789		17,034		50,286		36,590
Europe		—		97		—		108
Total net revenues	$	28,505	$	17,915	$	52,662	$	39,758

Timing of Revenue Recognition

	Three Months Ended				Nine Months Ended
	September 28, 2024		September 30, 2023		September 28, 2024		September 30, 2023
	(In thousands)
Products transferred at a point in time	$	28,077	$	17,915	$	52,234	$	39,758
Products and services transferred over time		428		—		428		—
Total net revenues	$	28,505	$	17,915	$	52,662	$	39,758

Changes in Contract Assets and Contract Liabilities

The following table reflects the changes in our contract assets, which we classify as accounts receivable, unbilled or retainage, and our contract liabilities, which we classify as deferred revenue and customer advances, for the nine months ended September 30, 2023.

	September 28 2024		December 30, 2023		Nine Months Change
	(In thousands)
Contract assets:
Accounts receivable, unbilled	$	3,194	$	393	$	2,801
Contract liabilities:
Deferred revenue	$	416	$	376	$	40
Customer advances		7,773		21,889		(14,116	)
	$	8,189	$	22,265	$	(14,076	)