Note 17 - Unrealized Loss on Equity Securities (Tables)

12 Months Ended

Jul. 31, 2022

Notes Tables

Equity Securities Measurement Inputs [Table Text Block]

Expected Risk Free Interest Rate	2.59	%
Annual Volatility	64.76	%
Expected Contractual Life in Years	4.78
Expected Annual Dividend Yield	0	%

Unrealized Gain (Loss) on Investments [Table Text Block]

Urealized loss from investment in Anfield shares	$	(1,925	)
Urealized loss from investment in Anfield warrants		(1,105	)
Urealized gain from investment in UEX shares		1,132
Total	$	(1,898	)