Consolidated Statements of Operations (Unaudited) (Parentheticals) - $ / shares	3 Months Ended		6 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2023	Jan. 31, 2022
Income Statement [Abstract]
Income (loss) per common share, diluted	$ 0.02	$ (0.10)	$ 0.05	$ (0.29)
Average common shares outstanding, diluted	2,015,780	2,015,780	2,015,780	2,015,780