Share-Based Compensation, Stock Options (Details) - Stock Options [Member] - USD ($) $ in Thousands		12 Months Ended
		Aug. 02, 2019	Aug. 03, 2018	Jul. 28, 2017
Stock Options [Abstract]
Yearly exercisable cumulative rate		33.00%
Number of years to expiration date from grant date		10 years
Granted (in shares)		0	0	0
Total intrinsic values of options exercised	[1]	$ 0	$ 466	$ 1,070

[1] The intrinsic value for stock options is defined as the difference between the current market value and the grant price.