Net Income Per Share and Weighted Average Shares (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Apr. 28, 2023	Jan. 27, 2023	Oct. 28, 2022	Apr. 29, 2022	Jan. 28, 2022	Oct. 29, 2021	Apr. 28, 2023	Apr. 29, 2022
Reconciliation of Components of Diluted Earnings per Share Computations [Abstract]
Net income per share numerator	$ 13,968	$ 30,491	$ 17,129	$ 27,516	$ 37,624	$ 33,376	$ 61,588	$ 98,516
Net income per share denominator [Abstract]
Weighted average shares (in shares)	22,152,002			23,089,521			22,173,019	23,330,093
Add potential dilution [Abstract]
Nonvested stock awards and units (in shares)	102,509			81,379			93,314	79,025
Diluted weighted average shares (in shares)	22,254,511			23,170,900			22,266,333	23,409,118
Convertible Senior Notes [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Conversion price (in dollars per share)	$ 172.09						$ 172.09
Warrants [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Abstract]
Adjusted strike price (in dollars per share)	$ 240.93						$ 240.93