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Note 1 - Basis of Presentation (Details Textual)	Mar. 29, 2019 $ / shares	Jan. 31, 2020 $ / shares	Oct. 31, 2019 $ / shares
Common Class A [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01	$ 0.01
Common Class B [Member]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01	$ 0.01
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	25
Reverse Stock Split [Member] | Common Class A [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	25
Reverse Stock Split [Member] | Common Class B [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	25
Consolidated Joint Venture [Member]
Noncontrolling Interest, Ownership Percentage by Parent		99.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		1.00%

X

- Definition

Face amount or stated value per share of common stock.

+ 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(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

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Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
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