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LONG-TERM DEBT (Details) $ in Thousands, ¥ in Millions |  | 1 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | ---
Aug. 25, 2019 USD ($) | Jul. 28, 2019 USD ($) | Feb. 02, 2020 USD ($) | Feb. 02, 2020 CNY (¥) | Jan. 27, 2019 USD ($) | Feb. 02, 2020 CNY (¥) | Oct. 31, 2019 USD ($)
Long-term debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 44,408 |  |  |  | $ 44,029
Current portion of long-term debt |  |  | (7,959) |  |  |  | (2,142)
Long-term debt |  |  | $ 36,449 |  |  |  | $ 41,887
Weighted-average interest rate of short -term debt |  |  | 3.90% |  |  | 3.90% | 3.84%
Repayments of debt |  |  | $ 389 |  | $ 0 |  |
Proceeds from debt |  |  | 1,140 |  | $ 28,180 |  |
Maturities of Long-term Debt [Abstract] |  |  |  |  |  |  |
2020 (remainder of) |  |  | 1,788 |  |  |  |
2021 |  |  | 8,449 |  |  |  |
2022 |  |  | 12,648 |  |  |  |
2023 |  |  | 3,501 |  |  |  |
2024 |  |  | 6,704 |  |  |  |
Thereafter |  |  | 11,318 |  |  |  |
Project Loans [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 35,094 |  |  |  | $ 34,490
Interest rate percentage |  |  | 4.90% |  |  | 4.90% |
Maturity date of debt |  |  | Dec. 31, 2025 | Dec. 31, 2025 |  |  |
Maximum borrowing capacity |  |  | $ 50,000 |  |  |  |
Consolidated assets pledged |  |  | 92,900 |  |  |  |
Proceeds from credit facility |  |  | $ 35,100 | ¥ 243.4 |  |  |
Date of first required payment |  |  | Jun. 30, 2020 | Jun. 30, 2020 |  |  |
Maturities of Long-term Debt [Abstract] |  |  |  |  |  |  |
2020 (remainder of) |  |  | $ 1,298 |  |  |  |
2021 |  |  | 6,488 |  |  |  |
2022 |  |  | 5,785 |  |  |  |
2023 |  |  | 3,501 |  |  |  |
2024 |  |  | 6,704 |  |  |  |
2025 |  |  | 6,416 |  |  |  |
2026 |  |  | $ 4,902 |  |  |  |
Working Capital Loans [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Maturity date of debt |  |  | Jan. 31, 2022 | Jan. 31, 2022 |  |  |
Maximum borrowing capacity |  |  | $ 25,000 |  |  |  |
Maturities of Long-term Debt [Abstract] |  |  |  |  |  |  |
2020 (remainder of) |  |  | 490 |  |  |  |
2021 |  |  | 1,961 |  |  |  |
2022 |  |  | $ 6,863 |  |  |  |
Working Capital Loans [Member] | Minimum [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 0.2575% | 0.2575% |  |  |
Working Capital Loans [Member] | Maximum [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Basis spread on variable rate |  |  | 0.6775% | 0.6775% |  |  |
Working Capital Loans (value added tax component) [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Long-term debt |  |  | $ 9,314 |  |  |  | $ 9,539
Maximum borrowing capacity | ¥ |  |  |  |  |  | ¥ 140.0 |
Repayments of debt |  |  | 400 |  |  |  |
Amount outstanding under credit facility |  |  | $ 9,300 |  |  | ¥ 64.6 |
Working Capital Loans (value added tax component) [Member] | Minimum [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Interest rate percentage |  |  | 4.80% |  |  | 4.80% |
Working Capital Loans (value added tax component) [Member] | Maximum [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Interest rate percentage |  |  | 4.90% |  |  | 4.90% |
Working Capital Loans, Fund Operations [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Maximum borrowing capacity | ¥ |  |  |  |  |  | ¥ 60.0 |
Proceeds from credit facility |  |  | $ 6,500 | ¥ 44.8 |  |  |
Term of loan |  |  | 1 year | 1 year |  |  |
Working Capital Loans, Fund Operations [Member] | Minimum [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Interest rate percentage |  |  | 4.40% |  |  | 4.40% |
Working Capital Loans, Fund Operations [Member] | Maximum [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Interest rate percentage |  |  | 4.60% |  |  | 4.60% |
Amended and Restated Credit Agreement [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | $ 100,000 |  |  |  |
Term of loan |  |  | 5 years | 5 years |  |  |
Current borrowing capacity |  |  | $ 50,000 |  |  |  |
Cash limit for dividends, distributions and redemption on equity |  |  | 50,000 |  |  |  |
Amount outstanding under credit facility |  |  | 0 |  |  |  |
Available borrowing capacity |  |  | $ 50,000 |  |  |  |
Effective interest rate |  |  | 2.65% |  |  | 2.65% |
Equipment Loan [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Maximum borrowing capacity |  | $ 35,000 |  |  |  |  |
Proceeds from debt | $ 3,500 |  |  |  |  |  |
Equipment Loan [Member] | LIBOR [Member] |  |  |  |  |  |  |
Long-term debt [Abstract] |  |  |  |  |  |  |
Basis spread on variable rate |  | 1.00% |  |  |  |  |
Term of variable rate |  | 30 days |  |  |  |  |
Effective interest rate |  |  | 2.67% |  |  | 2.67% |

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