Note 8 - Equity-accounted Investment - Equity-accounted Investment (Details) - USD ($)	3 Months Ended		9 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Balance			$ 20,729,674
Balance	$ 24,829,322		24,829,322
Total	1,958,684	$ 870,013	4,713,583	$ 767,321
Uranium Royalty Corp [Member]
Balance			20,729,674
Share of income from URC	800,445	456,132	983,162	353,440
Gain on dilution of ownership interest	1,158,239	413,881	3,730,421	413,881
Translation loss			(613,935)
Balance	24,829,322		24,829,322
Gain on dilution of ownership interest	1,158,239	413,881	3,730,421	413,881
Total	$ 1,958,684	$ 870,013	$ 4,713,583	$ 767,321