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REVENUE (Tables)
 6 Months Ended
Apr. 30, 2023
REVENUE [Abstract]  
Contract Balances
The following table provides information about our contract balances at the balance sheet dates.

Classification
  
April 30,
2023
    
October 31,
2022
  
Contract Assets
            
Other current assets
  
$
21,385
    
$
15,752
  
                 
Contract Liabilities
                
Accrued liabilities
  
$
19,224
    
$
18,872
  
Other liabilities
    
13,189
      
4,989
  
   
$
32,413
    
$
23,861
  


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

   
Three Months Ended
    
Six Months Ended
  
   
April 30,
2023
    
May 1,
2022
    
April 30,
2023
    
May 1,
2022
  
                         
Revenue recognized from beginning liability
  
$
11,228
    
$
11,460
    
$
7,875
    
$
7,278
  
Disaggregation of Revenue

The following tables present our revenue for the three and six-month periods ended April 30, 2023, and May 1, 2022, disaggregated by product type, geographic origin, and timing of recognition.

 
Three Months Ended
    
Six Months Ended
  
 
Revenue by Product Type
  
April 30,
2023
    
May 1,
2022
    
April 30,
2023
    
May 1,
2022
  
IC
                        
High-end
  
$
43,920
    
$
51,362
    
$
91,923
    
$
98,285
  
Mainstream
    
123,134
      
94,437
      
231,720
      
177,275
  
Total IC
  
$
167,054
    
$
145,799
    
$
323,643
    
$
275,560
  
                                 
FPD
                                
High-end
  
$
51,888
    
$
46,610
    
$
97,579
    
$
92,886
  
Mainstream
    
10,364
      
12,100
      
19,175
      
25,890
  
Total FPD
  
$
62,252
    
$
58,710
    
$
116,754
    
$
118,776
  
   
$
229,306
    
$
204,509
    
$
440,397
    
$
394,336
  

 
Three Months Ended
    
Six Months Ended
  
 
Revenue by Geographic Origin*
  
April 30,
2023
    
May 1,
2022
    
April 30,
2023
    
May 1,
2022
  
Taiwan
  
$
80,448
    
$
69,852
    
$
156,017
    
$
137,693
  
China    
65,215
      
53,691
      
124,148
      
99,645
  
Korea
    
41,372
      
40,769
      
79,204
      
80,283
  
United States
    
32,495
      
30,335
      
62,377
      
57,511
  
Europe
    
9,276
      
9,506
      
17,722
      
18,420
  
Other
    
500
      
356
      
929
      
784
  
   
$
229,306
    
$
204,509
    
$
440,397
    
$
394,336
  

 
Three Months Ended
    
Six Months Ended
  
 
Revenue by Timing of Recognition
  
April 30,
2023
    
May 1,
2022
    
April 30,
2023
    
May 1,
2022
  
Over time
  
$
215,376
    
$
192,770
    
$
412,541
    
$
363,034
  
At a point in time
    
13,930
      
11,739
      
27,856
      
31,302
  
   
$
229,306
    
$
204,509
    
$
440,397
    
$
394,336