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Note 13 - Non-controlling Interests - Warrant Activity of U.S. Goldmining (Details) - U.S. GoldMining Inc. [member]
 12 Months Ended
Nov. 30, 2023
$ / shares
shares
Statement Line Items [Line Items]  
Balance, warrant (in shares) | shares 0
Balance, weighted average exercise of warrant (in dollars per share) | $ / shares $ 0
Issued, warrant (in shares) | shares 2,000,000
Issued, weighted average exercise of warrant (in dollars per share) | $ / shares $ 13
Exercised, warrant (in shares) | shares (258,708)
Exercised, weighted average exercise of warrant (in dollars per share) | $ / shares $ 13
Balance, warrant (in shares) | shares 1,741,292
Balance, weighted average exercise of warrant (in dollars per share) | $ / shares $ 13