Net Income (Loss) Per Share and Weighted Average Shares (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 29, 2022	Jul. 30, 2021	Jul. 31, 2020
Net Income (Loss) Per Share and Weighted Average Shares [Abstract]
Net income (loss) per share numerator	$ 131,880	$ 254,513	$ (32,475)
Net income (loss) per share denominator [Abstract]
Basic weighted average shares outstanding (in shares)	23,164,180	23,692,063	23,865,367
Add potential dilution [Abstract]
Nonvested stock awards and units (in shares)	81,830	75,327	0
Diluted weighted average shares outstanding (in shares)	23,246,010	23,767,390	23,865,367