Commitments Contigencies (Details)	12 Months Ended
	Jul. 31, 2021 $ / shares shares
Commitments Contigencies (Details)
Number of warrants, outstanding beginning of year | shares	0
Number of warrants, granted | shares	356,000
Number of warrants, outstanding and exercisable, end of year | shares	356,000
Weighted average exercise price, outstanding beginning of year | $ / shares	$ 0
Weighted average exercise price, granted | $ / shares	3.00
Weighted average exercise price, outstanding and exercisable, end of year | $ / shares	$ 3.00