SEGMENT INFORMATION - Summarized Financial Information of Net Revenue by Geographical Location (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Jul. 31, 2023	Apr. 30, 2023	Jul. 31, 2022
Segment Reporting Information [Line Items]
Net revenue	$ 40,804	$ 148,283	$ 203,272
Mainland China
Segment Reporting Information [Line Items]
Net revenue	14,649	48,049	72,210
United States
Segment Reporting Information [Line Items]
Net revenue	8,800	38,262	50,426
Netherlands
Segment Reporting Information [Line Items]
Net revenue	5,774	15,149	24,483
Singapore
Segment Reporting Information [Line Items]
Net revenue	4,448	14,940	19,903
Czech
Segment Reporting Information [Line Items]
Net revenue	3,336	19,497	16,342
Other
Segment Reporting Information [Line Items]
Net revenue	$ 3,797	$ 12,386	$ 19,908