REVENUE (Tables)

12 Months Ended

Oct. 31, 2023

REVENUE [Abstract]

Disaggregation of Revenue

The following tables present our revenue for the years ended October 31, 2023, October 31, 2022, and October 31, 2021, disaggregated by product type, geographic origin, and timing of recognition.

	Year Ended
Revenue by Product Type	October 31, 2023		October 31, 2022		October 31, 2021
IC
High-end	$	194,939	$	195,332	$	162,973
Mainstream		456,340		397,694		297,198
Total IC	$	651,279	$	593,026	$	460,171
FPD
High-end	$	200,842	$	186,988	$	155,670
Mainstream		39,955		44,535		47,920
Total FPD	$	240,797	$	231,523	$	203,590
	$	892,076	$	824,549	$	663,761

	Year Ended
Revenue by Geographic Origin*	October 31, 2023		October 31, 2022		October 31, 2021
Taiwan	$	316,889	$	291,342	$	248,597
China		245,378		212,598		115,732
Korea		162,235		156,139		156,391
United States		128,879		126,205		105,023
Europe		36,579		36,402		36,242
Other		2,116		1,863		1,776
	$	892,076	$	824,549	$	663,761

* This table disaggregates revenue by the location in which it was earned.

	Year Ended
Revenue by Timing of Recognition	October 31, 2023		October 31, 2022		October 31, 2021
Over time	$	838,628	$	758,359	$	606,332
At a point in time		53,448		66,190		57,429
	$	892,076	$	824,549	$	663,761

Contract Balances

The following table provides information about our contract balances at the balance sheet dates.

Classification	October 31, 2023		October 31, 2022
Contract Assets
Other current assets	$	10,984	$	15,752
Contract Liabilities
Accrued liabilities	$	9,965	$	18,872
Other liabilities		12,454		4,989
	$	22,419	$	23,861

The following table presents revenue recognized from contract liabilities that existed at the beginning of the reporting periods.  

	October 31, 2023		October 31, 2022		October 31, 2021
Revenue recognized from beginning liability	$	13,966	$	8,934	$	5,300