v3.25.1
Note 16 - Segmented Information - Schedule of Revenue, Total Assets, and Long-term Assets by Geographic Segments (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Apr. 30, 2025
Apr. 30, 2024
Apr. 30, 2025
Apr. 30, 2024
Jul. 31, 2024
Revenue $ 0 $ 0 $ 66,837 $ 224  
Depreciation, amortization, and accretion 1,405 551 3,048 1,620  
Loss from equity-accounted investment (2,255) 3,306 (3,722) 4,958  
Interest income 571 993 2,897 1,559  
Loss before income taxes (29,778) (21,508) (62,936) (17,739)  
Total expenditures for additions to long-lived assets 2,152 260 194,988 2,588  
Total assets 1,007,810   1,007,810   $ 889,828
EQUITY-ACCOUNTED INVESTMENTS 55,566   55,566   58,809
Long-lived assets other than financial instruments 781,611   781,611   581,991
Operating Segments [Member] | Mining, Wyoming [Member]          
Revenue 0 0 0 224  
Depreciation, amortization, and accretion 1,098 400 2,386 1,177  
Loss from equity-accounted investment 0 0 0 0  
Interest income 0 0 0 0  
Loss before income taxes (12,644) (4,311) (30,282) (9,706)  
Total expenditures for additions to long-lived assets 190 0 191,523 242  
Total assets 365,453   365,453   169,740
EQUITY-ACCOUNTED INVESTMENTS 0   0   0
Long-lived assets other than financial instruments 352,824   352,824   162,816
Operating Segments [Member] | Mining, Texas [Member]          
Revenue 0 0 0 0  
Depreciation, amortization, and accretion 264 120 536 376  
Loss from equity-accounted investment 0 0 0 0  
Interest income 0 0 0 0  
Loss before income taxes (4,314) (3,137) (13,205) (8,314)  
Total expenditures for additions to long-lived assets 1,962 158 3,140 186  
Total assets 33,739   33,739   23,776
EQUITY-ACCOUNTED INVESTMENTS 0   0   0
Long-lived assets other than financial instruments 30,533   30,533   21,028
Operating Segments [Member] | Mining, Saskatchewan [Member]          
Revenue 0 0 0 0  
Depreciation, amortization, and accretion 38 26 113 55  
Loss from equity-accounted investment 0 0 0 0  
Interest income 0 0 0 0  
Loss before income taxes (4,460) (3,615) (10,408) (9,301)  
Total expenditures for additions to long-lived assets 0 102 273 2,088  
Total assets 379,045   379,045   378,368
EQUITY-ACCOUNTED INVESTMENTS 0   0   0
Long-lived assets other than financial instruments 377,653   377,653   377,550
Operating Segments [Member] | Mining, Others [Member]          
Revenue 0 0 0 0  
Depreciation, amortization, and accretion 2 1 6 3  
Loss from equity-accounted investment 0 0 0 0  
Interest income 0 0 0 0  
Loss before income taxes (104) (185) (954) (671)  
Total expenditures for additions to long-lived assets 0 0 52 69  
Total assets 20,800   20,800   20,789
EQUITY-ACCOUNTED INVESTMENTS 0   0   0
Long-lived assets other than financial instruments 20,445   20,445   20,397
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member]          
Revenue 0 0 66,837 0  
Depreciation, amortization, and accretion 3 4 7 9  
Loss from equity-accounted investment (2,255) 3,306 (3,722) 4,958  
Interest income 571 993 2,897 1,559  
Loss before income taxes (8,256) (10,260) (8,087) 10,253  
Total expenditures for additions to long-lived assets 0 $ 0 0 $ 3  
Total assets 208,773   208,773   297,155
EQUITY-ACCOUNTED INVESTMENTS 55,566   55,566   58,809
Long-lived assets other than financial instruments $ 156   $ 156   $ 200