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Note 9 - Fair Value (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

		Total Carrying Amount in Consolidated Balance Sheet				Quoted Prices in Active Markets for Identical Assets				Realized Gains and (Losses) Included in Current Period Earnings (Loss)				Total Changes in Fair Values Included in Current Period Earnings (Loss)
Marketable equity securities and U.S. Treasury trading securities at June 30, 2024		$	15,949,009			$	15,949,009			$	18,016			$	130,327
Marketable equity securities and U.S. Treasury trading securities at December 31, 2023		$	49,322,696			$	49,322,696			$	740,892			$	4,411,489

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- Definition

Tabular disclosure of assets measured at fair value measured on a recurring or nonrecurring basis. Includes, but is not limited to, fair value measurements recorded and the reasons for the measurements, level within the fair value hierarchy in which the fair value measurements are categorized and transfers between levels 1 and 2.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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Period Type:	duration

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
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