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Note 7 - Commitments and Contingent Liabilities (Details Textual) - USD ($) |  | 9 Months Ended
--- | --- | ---
Jun. 01, 2017 | Jul. 31, 2017
Grandview at Riverwalk Port Imperial Condominium Association Construction Defect Lawsuit [Member] |  |
Loss Contingency, Damages Sought, Value |  | $ 41,300,000
Loss Contingency, Damages Awarded, Value | $ 9,000,000 |
Grandview at Riverwalk Port Imperial Condominium Association Construction Defect Lawsuit [Member] | Minimum [Member] |  |
Loss Contingency, Estimate of Possible Loss | 0 |
Grandview at Riverwalk Port Imperial Condominium Association Construction Defect Lawsuit [Member] | Maximum [Member] |  |
Loss Contingency, Estimate of Possible Loss | 9,000,000 |
Grandview at Riverwalk Port Imperial Condominium Association Construction Defect Lawsuit [Member] | Breach of Warranty and New Jersey Fraud Claims Prior to Statutory Trebling [Member] |  |
Loss Contingency, Damages Awarded, Value | $ 3,000,000 |
Construction and Design Defects Lawsuit from Second Condominium Association [Member] |  |
Loss Contingency, Damages Sought, Value |  | $ 70,000,000

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- Definition Amount of damages awarded to the plaintiff in the legal matter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14557-108349 + Details
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