Note 12 - Subsequent Events (Details Textual) - Subsequent Event [Member] $ in Millions	1 Months Ended
Apr. 30, 2024 USD ($)
Wineland-Thomson Adventures, Inc [Member]
Business Combination, Price of Acquisition, Expected	$ 30.0
Payments to Acquire Businesses, Gross	24.0
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable	$ 6.0
Wineland-Thomson Adventures, Inc [Member] \| UNITED STATES
Number of Businesses Acquired	1
Wineland-Thomson Adventures, Inc [Member] \| TANZANIA, UNITED REPUBLIC OF
Number of Businesses Acquired	4
Business Combination, Price of Acquisition, Expected	$ 11.2
Natural Habitat, Inc [Member]
Payments to Acquire Interest in Subsidiaries and Affiliates	15.2
DuVine [Member]
Payments to Acquire Interest in Subsidiaries and Affiliates	$ 1.5
Natural Habitat, Inc [Member]
Subsidiary, Ownership Percentage, Additional Ownership Acquired	9.95%
Subsidiary, Ownership Percentage, Parent	90.10%
DuVine [Member]
Subsidiary, Ownership Percentage, Additional Ownership Acquired	5.00%
Subsidiary, Ownership Percentage, Parent	75.00%

Amount of additional ownership acquired in net assets of the subsidiary, expressed as a percentage.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 30
-Paragraph 8
-SubTopic 30
-Topic 805
-Publisher FASB
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI https://asc.fasb.org/1943274/2147479637/805-30-30-7

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- Definition

Purchase price of expected business acquisition prior to consideration being transferred. Excludes asset acquisition.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 15
-Paragraph 3
-SubTopic 10
-Topic 805
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479455/805-10-15-3

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

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The number of businesses acquired by the entity during the period.

+ References

No definition available.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479581/805-30-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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-Publisher FASB
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- Definition

The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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