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Inventories - Additional Information (Details) - USD ($)	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Inventory [Line Items]
Long-term inventory	$ 2,179,000
Costs of Revenues [Member]
Inventory [Line Items]
Excess plant capacity and manufacturing variances cost incurred	14,500,000	$ 11,200,000
Bridgeport Fuel Cell, LLC [Member]
Inventory [Line Items]
Long-term inventory	$ 2,200,000	$ 0

X

- Definition

Excess plant capacity and manufacturing variances cost.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Definition

Inventories not expected to be converted to cash, sold or exchanged within the normal operating cycle.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.6(d))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Details

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