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Note 7 - Commitments and Contingent Liabilities (Details Textual) - USD ($) $ in Millions |  | 6 Months Ended
--- | --- | ---
May 02, 2018 | Apr. 30, 2022
EPA Case Involving a Housing Redevelopment Project in Newark, New Jersey [Member] |  |
Loss Contingency, Percentage of Plaintiff's Costs for Which Reimbursement is Demanded | 100.00% |
Loss Contingency, Damages Sought, Value | $ 2.7 |
Great Notch Condominium Claims[Member] |  |
Loss Contingency, Damages Sought, Value |  | $ 119.5
Spill Fund Lawsuit [Member] |  |
Loss Contingency, Damages Sought, Value |  | $ 5.3

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- Definition Represents the percentage of the plaintiff's costs that the plaintiff demands the defendant to pay. + References No definition available. + Details
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- Definition The value (monetary amount) of the award the plaintiff seeks in the legal matter. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349 + Details
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- Details
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