Note 13 - Sales and Service Revenue and Cost of Sales and Services (Tables)

3 Months Ended

Oct. 31, 2023

Notes Tables

Schedule of Revenue and Cost of Revenue [Table Text Block]

	Three Months Ended October 31,
	2023			2022
Sales of purchased uranium inventory	$	-		$	57,209
Revenue from toll processing services		108			83
Total sales and service revenue	$	108		$	57,292
Cost of purchased uranium inventory	$	-		$	(43,365	)
Cost of toll processing services		(90	)		(69	)
Total cost of sales and services	$	(90	)	$	(43,434	)

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

	Three Months Ended October 31,
	2023			2022
Customer A		0	%		9	%
Customer B		0	%		45	%
Customer D		0	%		8	%
Customer F		0	%		13	%
Customer G		0	%		9	%
Others		100	%		17	%
		100	%		100	%