Note 7 - Preferred Stock (Tables)

9 Months Ended

Sep. 30, 2024

Notes Tables

Fair Value Measurements Of Preferred Stock Valuation Technique [Table Text Block]

	January 14 – March 14,		April 5 – May 2,
	2024		2024
Initial exercise price	20.000 -8.1010		7.000 -1.1515
Stock price on valuation date	8.955 -7.1010		4.522 -1.2323
Risk-free rate		5.10% - 4.82%		5.47% - 5.49%
Term (in years)		0.25 - 0.08		0.08 - 0.01
Rounded annual volatility		145% - 130%		110%

Schedule of Stock by Class [Table Text Block]

													Consolidated
													Statement of
													Operations &
													Comprehensive
	Consolidated Balance Sheets												Loss
													Fair value
							Series A Convertible						adjustment to
				Series A			Redeemable			Additional			derivative
	Warrant			Preferred			Preferred			paid-in			and warrant
($ in thousands)	liability			Stock			Stock			capital			liabilities
Balances, December 31, 2023	$	3,083		$	1,742			—		$	(7,208	)	$	—
Conversion of 202 Series A Preferred Stock, net		—			(269	)		—			269			—
Extinguishment of Series A Preferred Stock		—			(191	)		—			191			—
Deemed dividend on January 14, 2024, modification		—			228			—			(228	)		—
Fair value adjustment		(419	)		—			—			—			419
Balances, March 31, 2024		2,664			1,510			—			(6,976	)		419
Conversion of 1,215 Series A Preferred Stock, net		—			(1,550	)		—			1,550			—
Extinguishment of Series A Preferred Stock		—			(31	)		—			31			—
Deemed dividend on modification of Series A Preferred Stock		—			71			—			(71	)		—
Cashless exercise of 3i Exchange Warrants		(405	)		—			—			405			—
Fair value adjustment		(2,243	)		—			—			—			2,243
Balances, June 30, 2024	$	16		$	—		$	—		$	(5,061	)	$	2,662
Fair value adjustment		(14	)		—			—			—			14
Issuance of redeemable preferred stock		—			—			2,938			—			—
Redemption of redeemable preferred stock		—			—			(3,500	)		—			—
Deemed dividend on redeemable preferred stock		—			—			562			(562	)		—
Balances, September 30, 2024	$	2		$	—		$	—		$	(5,623	)	$	2,676

													Consolidated
													Statement of
													Operations &
													Comprehensive
	Consolidated Balance Sheets												Loss
				Series A
				Preferred									Fair value
				Convertible									adjustment to
				Stock –			Series A			Additional			derivative
	Warrant			Mezzanine			Preferred			paid-in			and warrant
($ in thousands)	liability			Equity			Stock			capital			liabilities
Balances, December 31, 2022	$	374		$	2,001		$	—		$	(3,756	)	$	—
Conversion of 3,838 Series A Preferred Stock, net		—			(565	)		—			575			—
Fair value adjustment		(309	)		—			—			—			309
Balances, March 31, 2023		65			1,436			—			(3,181	)		309
Conversion of 8,214 Series A Preferred Stock		—			(812	)		(2,522	)		3,334			—
Elimination of redemption rights on Series A Preferred stock; deemed dividend of $3,328		—			(624	)		3,952			(3,328	)		—
Redemption of 1,550 Series A Preferred Stock		—			—			(1,445	)		—			—
Issuance of 486 Series A Preferred stock as repayment of $350 debt; $103 charged to interest expense		—			—			453			—			—
Exchange of 50,000 Series C Preferred Stock for 5,577 Series A Preferred Stock; deemed dividend of $3,959		—			—			5,199			(3,959	)		—
Fair value adjustment		1,078			—			—			—			(1,078	)
Balances, June 30, 2023	$	1,143		$	—		$	5,637		$	(7,134	)	$	(769	)
July 10, 2023 modification		—			—			206			(206	)		—
Redemption of 4,630 Series A Preferred stock		—			—			(4,474	)		(526	)		—
September 14, 2023 modification		—			—			373			(373	)		—
Fair value adjustment		2,803			—			—			—			(2,803	)
Balances, September 30, 2023	$	3,946		$	—		$	1,742		$	(8,239	)	$	(3,572	)