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Note 11 - Equity (Tables)

9 Months Ended

12 Months Ended

Sep. 30, 2024

Dec. 31, 2023

Notes Tables

Schedule of Stock by Class [Table Text Block]

		December 31
		2023				2022				2023				2022
		Number of authorized shares				Number of authorized shares				Number of issued shares				Number of issued shares
Shares of common stock			256,880,000				256,880,000				3,678,550				265,485
Series A Preferred Stock											-				-
Series B Preferred Stock			3,120,000				3,120,000				1,516,199				-
Series C Preferred Stock											159,966				-

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

		Number of Warrants				Weighted Average Exercise Price				Weighted Average Remaining Life
Outstanding warrants, January 1, 2024			193,433			$	23.46				2.74
Series C Warrants (Note 10.a)			86,820				24.62
Broker warrants for Series C Offering (Note 10.a)			4,163				12.31
PIPE Warrants (Note 10.a)			823,529				6.83
WaveDancer legacy warrants (Note 4)			76,098				94.69
Outstanding warrants, September 30, 2024			1,184,043			$	16.51				4.06

		Number of Warrants				Weighted Average Remaining Life
Outstanding warrants, January 1, 2024			54,782				1.51
Pre-funded warrants (Note 10.a)			504,324
Series A warrants (Note 10.d)			629,039
Series D warrants (Note 10.e)			92,798
Consulting agreement warrants (Note 10.f)			44,932
Exercised			(435,169	)
Outstanding warrants, September 30, 2024			890,706				3.48

		Number of Warrants				Weighted Average Exercise Price				Weighted Average Remaining Life
Outstanding warrants, January 1, 2022			12,827			$	72.12				0.85
Warrants issued pursuant to issue of convertible debt and preferred shares to individual investors			20,642				28.85
Warrants issued pursuant to modification of convertible debt			54,782				7.21
Outstanding warrants, December 31, 2022			88,251			$	21.73				2.50
Warrants issued pursuant to units offering			159,964				24.62
Outstanding warrants, December 31, 2023			248,215			$	19.90				2.46

Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

		2024
Stock price			$6.91
Risk free rate		3.75%	-	3.82%
Dividend yield			0%
Expected volatility		86.50%	-	87.60%
Expected term (in years)		3.91	-	4.93

		2023				2022
Risk free rate			4.35	%			4.5	%
Dividend yield			0	%			0	%
Expected volatility			86	%			86	%
Expected term (in years)			3				3
Expected life (in years)			5				5

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

		Number of Stock Options				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term (Years)				Aggregate Intrinsic Value
Outstanding Options, December 31, 2023			134,333			$	20.77				6.18			$	-
Options granted			335,728				5.18				-				-
WaveDancer options			113,522				82.25				-				-
Outstanding Options, September 30, 2024			583,583			$	23.77				3.43			$	-

		Number of Stock Options				Weighted Average Grant-Date Fair Value
Non-Vested Options, December 31, 2023			90,988			$	4.77
Options granted			335,728				4.77
Options vested			(185,704	)			4.94
Non-Vested Options, September 30, 2024			241,012			$	4.63

		Number of Stock Options				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term				Aggregate Intrinsic Value
Outstanding Options, December 31, 2022			51,558			$	45.19				6.90			$	-
Options granted			82,775				5.58
Outstanding Options, December 31, 2023			134,333			$	20.77				6.18			$	-

		Number of Stock Options				Weighted Average Grant- Date Fair Value
Non-Vested Options, December 31, 2022			33,889			$	21.15
Options granted			82,775				0.00
Options vested			(25,676	)			11.06
Non-Vested Options, December 31, 2023			90,988			$	4.77

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