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Note 7 - Investments, Including Investments Accounted for Using the Equity Method (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Investment [Table Text Block]

		September 30,				December 31,
		2025				2024
U.S. Treasury notes held to maturity		$	18,886,257			$	22,411,583
Common stock warrants of Sky Harbour Group Corporation			11,656,866				22,541,754
Total		$	30,543,123			$	44,953,337

		September 30,				December 31,
		2025				2024
U.S. Treasury securities held to maturity		$	4,760,546			$	4,736,409
Investments in special purpose entities			30,475,392				46,936,743
Preferred stock			348,694				348,694
Voting preferred stock of MyBundle TV Inc.			3,000,000				3,000,000
Voting common stock of CB&T Holding Corporation			19,058,485				19,058,485
Total		$	57,643,117			$	74,080,331

Debt Securities, Trading, and Equity Securities, FV-NI [Table Text Block]

						Gross
						Unrealized				Fair
		Cost				Gain (Loss)				Value
Marketable equity securities, September 30, 2025		$	1,074,439			$	(76,992	)		$	997,447
Marketable equity securities, December 31, 2024		$	2,455,024			$	(61,764	)		$	2,393,260

Schedule of Available-for-Sale Securities Reconciliation [Table Text Block]

						Gross
						Unrealized				Fair
		Cost				Gain (Loss)				Value
U.S. Treasury trading securities, September 30, 2025		$	18,112,928			$	41,898			$	18,154,826
U.S. Treasury trading securities, December 31, 2024		$	10,949,883			$	27,086			$	10,976,969

Investments in and Advances to Affiliates [Table Text Block]

		September 30,				December 31,
		2025				2024
Beginning of year		$	72,435,867			$	94,244,788
Additional investments in unconsolidated affiliates			-				21,000
Sale of interest			(4,103,647	)			(2,748,292	)
Distributions received			(60,000	)			(1,798,348	)
Equity in income (loss) of unconsolidated affiliates			3,256,015				(17,283,281	)
End of period		$	71,528,235			$	72,435,867

Equity Method Investments [Table Text Block]

		For the Three Months Ended								For the Nine Months Ended
		September 30,								September 30,
		2025				2024				2025				2024
Revenue		$	8,878,812			$	5,354,244			$	23,492,428			$	13,658,650
Gross profit			7,787,088				4,461,569				20,615,740				11,070,032
Net income (loss) from operations			(7,822,291	)			(4,891,567	)			(21,703,448	)			(15,050,857	)
Net income (loss)			(4,650,299	)			(20,725,451	)			1,043,361				(37,738,983	)

X

- Definition

Tabular disclosure of equity method investments including, but not limited to, name of each investee or group of investments, percentage ownership, difference between recorded amount of an investment and the value of the underlying equity in the net assets, and summarized financial information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/320/tableOfContent

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Topic 321
-Publisher FASB
-URI https://asc.fasb.org/321/tableOfContent

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 946
-SubTopic 320
-Name Accounting Standards Codification
-Section S99
-Paragraph 6
-Subparagraph (SX 210.12-14)
-Publisher FASB
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Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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