Equity (Details Narrative) - USD ($)		3 Months Ended
	Oct. 11, 2023	Oct. 31, 2023	Oct. 31, 2022	Oct. 26, 2023
Class of Stock [Line Items]
Proceeds from exercise of stock options		$ 172,000
Stock repurchase program, remaining number of shares authorized to be repurchased		4,600,000
Common Class B [Member] | 2024 Equity Incentive Plan [Member]
Class of Stock [Line Items]
Number of shares, grant				250,000
Common Class B [Member] | 2015 Stock Option and Incentive Plan [Member]
Class of Stock [Line Items]
Additional number of shares authorized	250,000
Proceeds from exercise of stock options		$ 200,000
Exercise of stock options, shares		12,500
Class B Common Stock [Member]
Class of Stock [Line Items]
Aggregate repurchased shares		8,000,000.0
Class B common stock shares repurchased		125,470	203,436
Aggregate purchase price of shares repurchased		$ 2,800,000	$ 5,000,000.0
Class B Common Stock [Member] | Employees [Member]
Class of Stock [Line Items]
Class B common stock shares repurchased		654	13,403
Aggregate purchase price of shares repurchased		$ 15,000	$ 300,000