Note 5 - Mineral Rights and Properties (Details Textual)	3 Months Ended				9 Months Ended
	Apr. 30, 2022 USD ($)	Jan. 31, 2022 USD ($)	Oct. 31, 2021 USD ($)	Apr. 30, 2021 USD ($)	Apr. 30, 2022 USD ($) shares	Apr. 30, 2021 USD ($)	Jul. 31, 2021 USD ($)
Annual Property Maintenance Fees	$ 4,300,000				$ 4,300,000
Stock Issued During Period, Value, for Mineral Properties		$ 206,129	$ 219,390
Payments to Acquire Mineral Rights					589,901	$ 80,000
Mineral Properties, Gross	179,140,630				179,140,630		$ 67,711,387
Mineral Property Expenditures	2,912,518			$ 1,478,754	$ 6,678,207	3,141,772
Diabase Project Addition [Member]
Number of Mineral Claims					10
Net Consideration, Mineral Resources					$ 435,420
Stock Issued During Period, Shares, for Mineral Properties (in shares) | shares					111,864
Stock Issued During Period, Value, for Mineral Properties					$ 425,519
Payments to Acquire Mineral Rights					9,901
Diabase Project [Member]
Mineral Properties, Gross	982,358				982,358		546,938
Alto Parana Titanium Project [Member]
Mineral Properties, Gross	$ 1,933,030				$ 1,933,030		1,433,030
Percentage of Net Smelter Royalty, Right to Acquire	0.50%				0.50%
Payments to Acquire Smelter Royalty	$ 500,000
Mineral Property Expenditures	76,925			88,796	$ 281,577	134,710
Palangana Mine [Member]
Mineral Properties, Gross	6,027,784				6,027,784		6,027,784
Depletion, Total	0			0	0	0
Mineral Property Expenditures	299,727			$ 216,791	811,443	$ 648,459
UEC Wyoming Portfolio [Member]
Mineral Properties, Gross	110,413,823				110,413,823		$ 0
Mineral Property Expenditures	$ 895,797				$ 1,334,580