Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jan. 27, 2024	Jan. 28, 2023	Jan. 27, 2024	Jan. 28, 2023
Disaggregation of Revenue [Line Items]
Total revenue	$ 53,058	$ 54,270	$ 132,188	$ 152,106
Hong Kong
Disaggregation of Revenue [Line Items]
Total revenue	28,393	1,583	48,885	8,636
United States
Disaggregation of Revenue [Line Items]
Total revenue	15,436	16,513	29,688	35,001
Taiwan
Disaggregation of Revenue [Line Items]
Total revenue	3,482	2,048	13,730	1,297
Mainland China
Disaggregation of Revenue [Line Items]
Total revenue	798	29,233	22,415	83,412
Rest of World
Disaggregation of Revenue [Line Items]
Total revenue	$ 4,949	$ 4,893	$ 17,470	$ 23,760