Derivative Warrant Liability (Tables)

12 Months Ended

Feb. 28, 2023

Derivative Warrant Liability [Abstract]

Schedule of derivative warrant liability

	February 28, 2023			February 28, 2022
(amounts in thousands, except share and per share data)
Stock price	$	0.25		$	0.41
Risk free interest rate		4.7	%		1.0	%
Expected volatility		190	%		170	%
Expected life in years		0.97			0.98
Expected dividend yield		0	%		0	%
Number of warrants		113,100			4,800,834
Fair value of derivative warrant liability	$	9		$	828

Schedule of derivative outstanding warrant liability

	Number of Warrants Outstanding			Fair Value of Derivative Warrant Liability
(amounts in thousands, except share data)
February 29, 2021		5,622,272		$	1,366
Change in fair value of derivative warrant liability		-			(477	)
Gain on extinguishment on expiration of warrants		(861,438	)		(61	)
February 28, 2022		4,800,834		$	828
Change in fair value of derivative warrant liability		-			(582	)
Gain on extinguishment on expiration of warrants		(4,687,734	)		(237	)
February 28, 2023		113,100		$	9