LONG-TERM DEBT (Details) $ in Thousands, ¥ in Millions	1 Months Ended			9 Months Ended
	Jun. 30, 2020 USD ($)	Jun. 30, 2020 CNY (¥)	Jul. 28, 2019 USD ($)	Aug. 02, 2020 USD ($)	Aug. 02, 2020 CNY (¥)	Oct. 31, 2019 USD ($)	Aug. 25, 2019 USD ($)
Long-term debt [Abstract]
Long-term debt				$ 46,779		$ 44,029
Current portion of long-term debt				(8,596)		(2,142)
Long-term debt				$ 38,183		$ 41,887
Weighted-average interest rate of short -term debt				2.60%	2.60%	3.84%
Consolidated assets				$ 1,195,842		$ 1,118,665
Short-term debt				6,087		8,731
Maturities of Long-term Debt [Abstract]
2020 (remainder of)				0
2021				8,596
2022				13,211
2023				7,123
2024				6,640
Thereafter				11,209
Project Loans [Member]
Long-term debt [Abstract]
Long-term debt				33,500	¥ 234.4	34,490
Maximum borrowing capacity				$ 50,000
Maturity date of debt				Dec. 31, 2025
Repayments of debt	$ 1,300	¥ 9.0
Interest rate percentage				4.90%	4.90%
Maturities of Long-term Debt [Abstract]
2021				$ 6,426
2022				5,729
2023				3,467
2024				6,640
2025				6,354
2026				4,855
Project Loans [Member] | Assets Pledged as Collateral [Member]
Long-term debt [Abstract]
Consolidated assets				92,800
Working Capital Loans [Member]
Long-term debt [Abstract]
Maximum borrowing capacity				$ 25,000
Maturity date of debt				Jul. 31, 2023
Maturities of Long-term Debt [Abstract]
2021				$ 2,170
2022				7,482
2023				$ 3,656
Working Capital Loans [Member] | Minimum [Member]
Long-term debt [Abstract]
Basis spread on variable rate				0.3175%
Working Capital Loans [Member] | Maximum [Member]
Long-term debt [Abstract]
Basis spread on variable rate				0.76%
Working Capital Loans (value added tax component) [Member]
Long-term debt [Abstract]
Long-term debt				$ 13,308	¥ 93.2	$ 9,539
Maximum borrowing capacity | ¥					¥ 140.0
Working Capital Loans (value added tax component) [Member] | Minimum [Member]
Long-term debt [Abstract]
Interest rate percentage				4.53%	4.53%
Working Capital Loans (value added tax component) [Member] | Maximum [Member]
Long-term debt [Abstract]
Interest rate percentage				4.61%	4.61%
Working Capital Loans, Fund Operations [Member]
Long-term debt [Abstract]
Maximum borrowing capacity | ¥					¥ 60.0
Short-term debt				$ 2,600	¥ 18.0
Term of loan				1 year
Working Capital Loans, Fund Operations [Member] | Minimum [Member]
Long-term debt [Abstract]
Interest rate percentage				4.37%	4.37%
Working Capital Loans, Fund Operations [Member] | Maximum [Member]
Long-term debt [Abstract]
Interest rate percentage				4.60%	4.60%
Equipment Loan [Member]
Long-term debt [Abstract]
Maximum borrowing capacity			$ 35,000
Short-term 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				1.18%	1.18%
Amended and Restated Credit Agreement [Member]
Long-term debt [Abstract]
Maximum borrowing capacity				$ 100,000
Term of loan				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				1.55%	1.55%