Term of the interest rate that fluctuates over time as a result of an underlying benchmark interest rate or index.

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This line item represents the face amount of each note converted or convertible to common stock.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the seventh fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of restricted net assets of consolidated and unconsolidated subsidiaries as of the end of the most recently completed fiscal year.

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Future cash outflow to pay for construction in progress expenditures that have occurred.

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Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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The price per share of the conversion feature embedded in the debt instrument.

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The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity.

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Date the debt agreement requires the first payment to be made, in CCYY-MM-DD format.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Represents the aggregate of total long-term debt, including current maturities and short-term debt.

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No definition available.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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DEBT (Details) $ / shares in Units, ¥ in Millions	1 Months Ended					3 Months Ended		9 Months Ended
DEBT (Details) $ / shares in Units, ¥ in Millions	Aug. 25, 2019 USD ($)	Jul. 28, 2019 USD ($)	Apr. 30, 2019 USD ($)	Apr. 30, 2016 USD ($) shares $ / shares	Jan. 31, 2015 USD ($) shares $ / shares	Jul. 28, 2019 USD ($)	Jul. 28, 2019 CNY (¥)	Jul. 28, 2019 USD ($)	Jul. 28, 2019 CNY (¥)	Jul. 29, 2018 USD ($)	Jul. 28, 2019 CNY (¥)	Oct. 31, 2018 USD ($)	Mar. 31, 2011 USD ($)
Debt [Abstract]
Debt		$ 49,115,000				$ 49,115,000		$ 49,115,000				$ 57,453,000
Current portion		(6,100,000)				(6,100,000)		(6,100,000)				(57,453,000)
Long-term debt noncurrent		43,015,000				43,015,000		43,015,000				0
Repayments of debt								61,319,000		$ 4,170,000
Master Lease Agreement [Member]
Debt [Abstract]
Maximum borrowing capacity		35,000,000				35,000,000		35,000,000
Amount outstanding under credit facility		$ 0				0		0
Master Lease Agreement [Member] \| Subsequent Event [Member]
Debt [Abstract]
Advance payment for equipment	$ 3,400,000
Master Lease Agreement [Member] \| LIBOR [Member]
Debt [Abstract]
Basis spread on variable rate		1.00%
Term of variable rate		30 days
Project Loans [Member]
Debt [Abstract]
Debt		$ 35,419,000				$ 35,419,000		$ 35,419,000				0
Interest rate percentage		4.90%				4.90%		4.90%			4.90%
Maximum borrowing capacity		$ 50,000,000				$ 50,000,000		$ 50,000,000
Maturity date of debt								Dec. 31, 2025	Dec. 31, 2025
Date of first required payment								Jun. 30, 2020	Jun. 30, 2020
Proceeds from credit facility						9,600,000		$ 35,400,000	¥ 243.4
Long-term Debt, Fiscal Year Maturity [Abstract]
2020 (all within one year of July 28, 2019)		1,310,000				1,310,000		1,310,000
2021		6,548,000				6,548,000		6,548,000
2022		5,838,000				5,838,000		5,838,000
2023		3,533,000				3,533,000		3,533,000
2024		6,766,000				6,766,000		6,766,000
2025		6,476,000				6,476,000		6,476,000
2026		4,948,000				4,948,000		4,948,000
Working Capital Loans [Member]
Debt [Abstract]
Debt		13,696,000				13,696,000		13,696,000				0
Maximum borrowing capacity		$ 25,000,000.0				$ 25,000,000.0		$ 25,000,000.0
Basis spread on variable rate								0.6775%	0.6775%
Maturity date of debt								Jan. 31, 2022	Jan. 31, 2022
Working Capital Loans, VAT [Member]
Debt [Abstract]
Interest rate percentage		5.00%				5.00%		5.00%			5.00%
Maximum borrowing capacity		$ 20,400,000				$ 20,400,000		$ 20,400,000			¥ 140.0
Repayments of debt						100,000
Proceeds from credit facility								9,900,000	¥ 68.0
Long-term Debt, Fiscal Year Maturity [Abstract]
2020 (all within one year of July 28, 2019)		890,000				890,000		890,000
2021		1,979,000				1,979,000		1,979,000
2022		$ 6,927,000				$ 6,927,000		$ 6,927,000
Working Capital Loans, Fund Operations [Member]
Debt [Abstract]
Interest rate percentage		4.60%				4.60%		4.60%			4.60%
Maximum borrowing capacity		$ 8,700,000				$ 8,700,000		$ 8,700,000			¥ 60.0
Proceeds from credit facility						3,900,000	¥ 11.4
Term of loan								1 year	1 year
3.25% Convertible Senior Notes Matured April 2019 [Member]
Debt [Abstract]
Debt		0				0		$ 0				$ 57,453,000
Face amount of debt		$ 57,500,000				$ 57,500,000		$ 57,500,000
Interest rate percentage		3.25%				3.25%		3.25%			3.25%
Maturity date of debt								Apr. 01, 2019	Apr. 01, 2019
Number of shares each note is convertible to (in shares) \| shares					96
Face amount of each note converted					$ 1,000
Conversion price per share (in dollars per share) \| $ / shares					$ 10.37
Repayments of debt			$ 57,500,000
Amended and Restated Credit Agreement [Member]
Debt [Abstract]
Maximum borrowing capacity		$ 100,000,000				$ 100,000,000		$ 100,000,000
Current borrowing capacity		50,000,000				50,000,000		50,000,000
Amount outstanding under credit facility		0				0		$ 0
Term of loan								5 years	5 years
Cash limit for dividends, distributions and redemption on equity		100,000,000				100,000,000		$ 100,000,000
Available borrowing capacity		$ 50,000,000				$ 50,000,000		$ 50,000,000
Effective interest rate		2.50%				2.50%		2.50%			2.50%
3.25% Convertible Senior Notes due in April 2016 [Member]
Debt [Abstract]
Face amount of debt													$ 57,500,000
Interest rate percentage				3.25%
Maturity date of debt				Apr. 01, 2016
Number of shares each note is convertible to (in shares) \| shares				96
Face amount of each note converted				$ 1,000
Conversion price per share (in dollars per share) \| $ / shares				$ 10.37