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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 (¥)
Jan. 29, 2023
USD ($)
Jan. 29, 2023
CNY (¥)
Oct. 31, 2022
USD ($)
Oct. 31, 2022
CNY (¥)
Jan. 29, 2023
CNY (¥)
Long Term Debt Maturing In Year One [Abstract]                  
Next 12 months         $ 6,541   $ 10,024    
Long-term Debt [Abstract]                  
Months 13 - 24         20,772   6,610    
Months 25 - 36         6,526   19,059    
Months 37 - 48         13   6,641    
Months 49 - 60         12        
Long-term debt         27,323   32,310    
Total debt [1]         33,864        
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         3,893   1,098    
Months 37 - 48         0   6,641    
Months 49 - 60         0        
Long-term debt         3,893   $ 7,739    
Total debt         $ 3,893 [1]       ¥ 26.4
Interest rate at balance sheet date         4.30% 4.30%      
Basis spread on interest rates         0.00% 0.00% 0.00% 0.00%  
Maturity date         Dec. 01, 2025 Dec. 01, 2025 Dec. 01, 2025 Dec. 01, 2025  
Periodic payment amount         Varies as loans mature [2],[3] Varies as loans mature [2],[3] Varies as loans mature [4] Varies as loans mature [4]  
Periodic payment frequency         Semiannual, on individual loans Semiannual, on individual loans Semiannual, on individual loans Semiannual, on individual loans  
Loan collateral (carrying amount)         $ 73,973   $ 70,705    
Repayment of long term debt         4,400 ¥ 30.0 $ 11,500 ¥ 81.0  
Xiamen Project Loans [Member] | Subsequent Event [Member]                  
Long-term Debt [Abstract]                  
Repayment of long term debt $ 3,900 ¥ 26.4              
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 | ¥           6.0      
Xiamen Project Loans [Member] | Due Date December 2025 [Member]                  
Long-term Debt [Abstract]                  
Repayment of long term debt | ¥           ¥ 24.0      
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. 01, 2023 Jul. 01, 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          
Finance Leases [Member]                  
Long Term Debt Maturing In Year One [Abstract]                  
Next 12 months         6,541   $ 6,512    
Long-term Debt [Abstract]                  
Months 13 - 24         20,772   6,610    
Months 25 - 36         2,633   17,961    
Months 37 - 48         13   0    
Months 49 - 60         12        
Long-term debt         23,430   $ 24,571    
Total debt [1]         $ 29,971        
Periodic payment amount         Varies as leases mature Varies as leases mature Varies as leases mature Varies as leases mature  
Periodic payment frequency         Monthly Monthly Monthly Monthly  
Loan collateral (carrying amount) [5]         $ 37,331   $ 37,976    
[1] We are in compliance with all of our debt covenants as of January 29, 2023.
[2] During the three-month period ended January 29, 2023, we repaid 30.0 million RMB (approximately $4.4 million), of which, 6.0 million RMB was due to be paid in June 2025, and 24.0 million RMB was due to be paid in December 2025.
[3] In February 2023, we repaid the entire outstanding balance of 26.4 million RMB (approximately $3.9 million) shown in the table above.
[4] During the three-month period ended October 31, 2022, we repaid 81.0 million RMB (approximately $11.5 million) that had contractual maturity dates ranging from December 2023 through June 2025.
[5] Represents the carrying amount at the balance sheet date of the related ROU assets, in which the lessors have secured interests.