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DEBT, Long-term Debt (Details)
$ in Thousands, ¥ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Feb. 28, 2023
USD ($)
Feb. 28, 2023
CNY (¥)
Dec. 31, 2022
USD ($)
Dec. 31, 2022
CNY (¥)
Jul. 31, 2022
USD ($)
Jul. 31, 2022
CNY (¥)
Apr. 30, 2023
USD ($)
Apr. 30, 2023
CNY (¥)
Oct. 31, 2023
USD ($)
Oct. 31, 2022
USD ($)
Oct. 31, 2022
CNY (¥)
Long Term Debt Maturing In Year One [Abstract]                      
Next 12 months                   $ 10,024  
Long-term debt [Abstract]                      
Months 13 - 24                   6,610  
Months 25 - 36                   19,059  
Months 37 - 48                   6,641  
Long-term debt                 $ 17,998 32,310  
Xiamen Project Loans [Member]                      
Long Term Debt Maturing In Year One [Abstract]                      
Next 12 months                 0 0  
Long-term debt [Abstract]                      
Months 13 - 24                 0 0  
Months 25 - 36                 0 1,098  
Months 37 - 48                 0 6,641  
Months 49 - 60                 0    
Long-term debt                 0 $ 7,739  
Total debt                 $ 0    
Basis spread on interest rates                 0.00% 0.00% 0.00%
Maturity date                 Dec. 31, 2025 Dec. 31, 2025 Dec. 31, 2025
Periodic payment amount                 Varies as loans mature [1] Varies as loans mature [2] Varies as loans mature [2]
Periodic payment frequency                 Semiannual, on individual loans Semiannual, on individual loans Semiannual, on individual loans
Loan collateral (carrying amount)                   $ 70,705  
Repayment of long term debt $ 3,900 ¥ 26.4         $ 3,900 ¥ 26.4   $ 11,500 ¥ 81.0
Xiamen Project Loans [Member] | Minimum [Member]                      
Long-term debt [Abstract]                      
Interest rate at balance sheet date                   4.30% 4.30%
Xiamen Project Loans [Member] | Maximum [Member]                      
Long-term debt [Abstract]                      
Interest rate at balance sheet date                   4.45% 4.45%
Xiamen Project Loans [Member] | Due Date June 2025 [Member]                      
Long-term debt [Abstract]                      
Repayment of long term debt | ¥               2.0      
Xiamen Project Loans [Member] | Due Date December 2025 [Member]                      
Long-term debt [Abstract]                      
Repayment of long term debt | ¥               ¥ 24.4      
Xiamen Working Capital Loans [Member]                      
Long Term Debt Maturing In Year One [Abstract]                      
Next 12 months                   $ 3,512  
Long-term debt [Abstract]                      
Months 13 - 24                   0  
Months 25 - 36                   0  
Months 37 - 48                   0  
Long-term debt                   $ 0  
Total debt                 $ 0    
Interest rate at balance sheet date                   4.46% 4.46%
Basis spread on interest rates                   0.76% 0.76%
Maturity date                   Jul. 31, 2023 Jul. 31, 2023
Periodic payment amount                   Increases as loans mature Increases as loans mature
Periodic payment frequency                   Semiannual, on individual loans Semiannual, on individual loans
Repayment of long term debt     $ 3,600 ¥ 25.6              
Hefei Equipment Loan [Member]                      
Long Term Debt Maturing In Year One [Abstract]                      
Next 12 months                   $ 0  
Long-term debt [Abstract]                      
Months 13 - 24                   0  
Months 25 - 36                   0  
Months 37 - 48                   0  
Long-term debt                   $ 0  
Maturity date                   Jul. 31, 2022 Jul. 31, 2022
Repayment of long term debt         $ 18,000 ¥ 120.7          
Finance Leases [Member]                      
Long Term Debt Maturing In Year One [Abstract]                      
Next 12 months                 6,621 $ 6,512  
Long-term debt [Abstract]                      
Months 13 - 24                 17,972 6,610  
Months 25 - 36                 12 17,961  
Months 37 - 48                 13 0  
Months 49 - 60                 1    
Long-term debt                 17,998 $ 24,571  
Total debt                 $ 24,619    
Interest rate at balance sheet date [3]                  
Maturity date [3]                  
Periodic payment amount                 Varies as Lease mature [3] [3]
Periodic payment frequency                 Monthly Monthly Monthly
Loan collateral (carrying amount) [4]                 $ 35,165 $ 37,976  
[1] During Q2 FY23, we repaid the entire balance of RMB 26.4 million (approximately $3.9 million) remaining on the loan, of which, RMB 2.0 million was due to be paid in June 2025 and RMB 24.4 million was due to be paid in December 2025.
[2] During the three month period ended October 31, 2022, we repaid RMB 81.0 million (approximately $11.5 million) that had contractual maturity dates ranging from December 2023 through June 2025.
[3] See Note 10 for interest rates on lease liabilities, maturity dates, and periodic payment amounts.
[4] Represents the carrying amount at the balance sheet date of the related ROU assets, in which the lessors have secured interests.