Note 11 - Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2024

Notes Tables

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

			Fair Value Measurements at
			June 30, 2024
			Quoted		Significant
			Prices		Other		Significant
			in Active		Observable		Unobservable
			Markets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Assets:
Stock held by GenMat advances (see Note 3)	$	412,206	$	—	$	412,206	$	—
Liabilities:
Kips Bay convertible debt derivative	$	470,000	$	—	$	—	$	470,000
LINICO related derivative		3,252,429		—		3,252,429		—
Haywood derivative		678,150		—		678,150		—
Total liabilities measured at fair value	$	4,400,579	$	—	$	3,930,579	$	470,000

			Fair Value Measurements at
			December 31, 2023
			Quoted		Significant
			Prices		Other		Significant
			in Active		Observable		Unobservable
			Markets		Inputs		Inputs
	Total		(Level 1)		(Level 2)		(Level 3)
Liabilities:
Kips Bay convertible debt derivative	$	1,360,000	$	—	$	—	$	1,360,000
LINICO related derivative		2,383,162		—		2,383,162		—
Haywood derivative		875,000		—		875,000		—
GenMat derivative		781,966		—		781,966		—
Total liabilities measured at fair value	$	5,400,128	$	—	$	4,040,128	$	1,360,000

Schedule of Derivative Liabilities at Fair Value [Table Text Block]

	For the Three-Months Ended June 30, 2024
	As of March 31, 2024			(Additions) Deductions			Unrealized Gain (Loss) on Change in Fair Value			Payments for Decrease in Contractual Stock Consideration		As of June 30, 2024
Kips Bay convertible debt derivative	$	(1,440,000	)	$	430,520		$	539,480		$	—	$	(470,000	)
LINICO related derivative		(2,893,325	)		—			(359,104	)		—		(3,252,429	)
Haywood derivative		(1,160,000	)		409,850			(48,000	)		120,000		(678,150	)
GenMat derivative		240,478			(694,970	)		(209,872	)		664,364		—
Total derivative liabilities measured at fair value	$	(5,252,847	)	$	145,400		$	(77,496	)	$	784,364	$	(4,400,579	)

	For the Six-Months Ended June 30, 2024
	As of December 31, 2023			(Additions) Deductions			Unrealized Gain (Loss) on Change in Fair Value			Payments for Decrease in Contractual Stock Consideration		As of June 30, 2024
Kips Bay convertible debt derivative	$	(1,360,000	)	$	(166,081	)	$	1,056,081		$	—	$	(470,000	)
LINICO related derivative		(2,383,162	)		—			(869,267	)		—		(3,252,429	)
Haywood derivative		(875,000	)		409,850			(333,000	)		120,000		(678,150	)
GenMat derivative		(781,966	)		(694,970	)		(687,428	)		2,164,364		—
Total derivative liabilities measured at fair value	$	(5,400,128	)	$	(451,201	)	$	(833,614	)	$	2,284,364	$	(4,400,579	)

	For the Three-Months Ended June 30, 2023
	As of March 31, 2023			(Additions) Deductions		Unrealized Gain (Loss) on Change in Fair Value			Payments for Decrease in Contractual Stock Consideration		As of June 30, 2023
Ionic convertible debt derivative	$	(24,000	)	$	840,254	$	(1,416,254	)	$	—	$	(600,000	)
LINICO related derivative		(5,468,162	)		—		1,365,000			825,000		(3,278,162	)
Haywood derivative		(1,190,000	)		—		585,000			—		(605,000	)
GenMat derivative		(5,234,043	)		—		1,030,871			900,000		(3,303,172	)
Total derivative liabilities measured at fair value	$	(11,916,205	)	$	840,254	$	1,564,617		$	1,725,000	$	(7,786,334	)

	For the Six-Months Ended June 30, 2023
	As of December 31, 2022			(Additions) Deductions		Unrealized Gain (Loss) on Change in Fair Value			Payments for Decrease in Contractual Stock Consideration		As of June 30, 2023
Ionic convertible debt derivative	$	(420,000	)	$	996,254	$	(1,176,254	)	$	—	$	(600,000	)
LINICO related derivative		(6,053,162	)		—		1,575,000			1,200,000		(3,278,162	)
Haywood derivative		(1,480,000	)		—		675,000			200,000		(605,000	)
GenMat derivative		(6,592,638	)		—		1,189,466			2,100,000		(3,303,172	)
Total derivative liabilities measured at fair value	$	(14,545,800	)	$	996,254	$	2,263,212		$	3,500,000	$	(7,786,334	)

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

Date	Description	Fair Value		Beginning Stock Price		Volatility			Risk Free Rate
April 6, 2023	10 million ABTC shares (make-whole provision $6.6 million to $7.6 million)	$	7,000,000	$	0.78		94.0	%		4.80	%
April 21, 2023	Change in fair value of the 10 million ABTC shares for a change in make-whole commitment	$	2,000,000	$	0.86		95.0	%		5.00	%
May 12, 2023	1 million ABTC shares	$	365,000	$	0.74		95.0	%		5.07	%