Note 11 - Capital Stock - Continuity Schedule of Outstanding Share Purchase Warrants (Details)	6 Months Ended
	Jan. 31, 2024 $ / shares shares
Balance, Number of Warrants (in shares) | shares	3,857,030
Balance, Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 3.31
Warrants Exercised (in shares) | shares	(302,220)
Class of Warrant or Right Exercised, Weighted Average Exercise Price | $ / shares	$ 2.53
Balance, Number of Warrants (in shares) | shares	3,554,810
Balance, Weighted Average Exercise Price (in dollars per share) | $ / shares	$ 3.38