REVENUE - Contract Balances (Details) - USD ($)	Apr. 30, 2020	Oct. 31, 2019	Apr. 30, 2019
REVENUE
Contract liabilities		$ 0
Revenue with variable payment terms	$ 3,310,000	41,000	$ 41,000
Revenue discounts related to payment terms		$ 26,000

Amount, before allowance for credit loss, of right to consideration in exchange for good or service transferred to customer, when right is conditioned on something other than passage of time.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant