Note 5 - Mineral Rights and Properties - Mineral Rights and Property Acquisition Costs (Details) - USD ($)	Apr. 30, 2022	Jul. 31, 2021
Mineral Properties, Gross	$ 179,140,630	$ 67,711,387
Accumulated Depletion	(3,929,884)	(3,929,884)
Mineral Properties Excluding Mineral Rights, Net	175,210,746	63,781,503
Mineral Properties, Net, Total	175,212,121	63,784,003
Palangana Mine [Member]
Mineral Properties, Gross	6,027,784	6,027,784
Goliad Project [Member]
Mineral Properties, Gross	8,689,127	8,689,127
Burke Hollow Project [Member]
Mineral Properties, Gross	1,495,750	1,495,750
Longhorn Project [Member]
Mineral Properties, Gross	116,870	116,870
Salvo Project [Member]
Mineral Properties, Gross	14,905	14,905
Anderson Project [Member]
Mineral Properties, Gross	3,470,373	3,470,373
Workman Creek Project [Member]
Mineral Properties, Gross	949,854	899,854
Los Cuatros Project [Member]
Mineral Properties, Gross	257,250	257,250
Slick Rock Project [Member]
Mineral Properties, Gross	90,000	60,000
Reno Creek Project [Member]
Mineral Properties, Gross	31,527,870	31,527,870
UEC Wyoming Portfolio [Member]
Mineral Properties, Gross	110,413,823	0
Diabase Project [Member]
Mineral Properties, Gross	982,358	546,938
Yuty Project [Member]
Mineral Properties, Gross	11,947,144	11,947,144
Oviedo Project [Member]
Mineral Properties, Gross	1,133,412	1,133,412
Alto Parana Titanium Project [Member]
Mineral Properties, Gross	1,933,030	1,433,030
Other Property Acquisitions [Member]
Mineral Properties, Gross	91,080	91,080
Databases and Land Use Agreements [Member]
Databases and Land Use Agreements	2,458,808	2,458,808
Accumulated Amortization	(2,457,433)	(2,456,308)
Mineral Rights	1,375	2,500
Mineral Rights and Properties [Member]
Mineral Properties, Net, Total	$ 175,212,121	$ 63,784,003