XML 59 R49.htm IDEA: XBRL DOCUMENT v3.21.1
Note 8 - Equity-accounted Investment (Details Textual) - Uranium Royalty Corp [Member]
3 Months Ended 9 Months Ended
May 20, 2021
$ / shares
May 20, 2021
USD ($)
shares
Apr. 30, 2021
USD ($)
shares
Apr. 30, 2020
USD ($)
Apr. 30, 2021
USD ($)
shares
Apr. 30, 2020
USD ($)
Jul. 31, 2020
Equity Method Investment, Shares Owned (in shares) | shares     14,000,000   14,000,000    
Equity Method Investment, Ownership Percentage     18.80%   18.80%   19.50%
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total     $ 493,101 $ (479,148) $ 1,041,900 $ (528,690)  
Equity Method Investments, Fair Value Disclosure     $ 49,300,000   $ 49,300,000    
Subsequent Event [Member]              
Equity Method Investment, Additional Shares Acquired (in shares) | shares   1,000,000          
Equity Method Investment, Additional Shares Acquired, Price Per Share (in CAD per share) | $ / shares $ 4.10            
Payments to Acquire Equity Method Investments   $ 3,396,852