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Segment and Geographic Information - Summary of Geographic Locations of the Ultimate End Customers (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue from External Customer [Line Items]
Total revenue	$ 18,165	$ 20,266	$ 51,770	$ 55,728
Taiwan
Revenue from External Customer [Line Items]
Total revenue	7,409	4,055	20,254	13,923
China
Revenue from External Customer [Line Items]
Total revenue	6,202	15,219	20,459	39,519
Singapore
Revenue from External Customer [Line Items]
Total revenue	1,629	0	7,284	1
Rest of the World
Revenue from External Customer [Line Items]
Total revenue	$ 2,925	$ 992	$ 3,773	$ 2,285

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