Note 6 - Convertible Promissory Note (Tables)

6 Months Ended

Jun. 30, 2023

Notes Tables

Convertible Debt [Table Text Block]

	Maturity Date	Stated Interest Rate			Conversion Price		Face Value		Debt Discount/ Premium			Carrying Value
June 30, 2023	7/31/2023		24	%	$	2.65	$	397,000	$	7,000		$	404,000
December 31, 2022	7/31/2023		24	%	$	6.30	$	1,000,000	$	(38,000	)	$	962,000

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

	January 2023			March 2023
Conversion price before	$	6.30		$	2.87
Conversion price after	$	2.87		$	2.65
Term (years)		0.09			0.78
Volatility		167	%		168.9	%
Dividend rate		0	%		0	%
Risk free rate		4.46	%		4.20	%

Convertible Debt [Member]

Notes Tables

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

	March 2023
Conversion price before	$	2.87
Conversion price after	$	2.65
Term (years)		0.36
Volatility		182	%
Dividend rate		0	%
Risk free rate		4.20	%