Stock-Based Compensation - Narrative (Detail) - USD ($)						3 Months Ended
	Jul. 15, 2015	Mar. 03, 2015	Jun. 24, 2014	Jun. 25, 2013	Jul. 11, 2012	Aug. 02, 2015	Aug. 03, 2014
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options granted						0
Number of options to purchase common stock outstanding						110,100
Number of options exercisable						110,100
Weighted average exercise price for options outstanding						$ 7.75
Weighted average exercise price for options exercisable						$ 7.75
Weighted average contractual term for options outstanding						2 years 2 months 12 days
Weighted average contractual term for options exercisable						2 years 2 months 12 days
Aggregate intrinsic value for options outstanding						$ 2,500,000
Aggregate intrinsic value for options exercisable						2,500,000
Aggregate intrinsic value for options exercised						$ 814,000
Number of options exercised							0
Number of unvested stock option						0
Unrecognized stock based compensation cost						$ 0
Share-based compensation expense						$ 0	$ 0
Common Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted						0
Time Vested Restricted Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted						0
Number of shares outstanding and unvested						0
Remaining unrecognized compensation cost						$ 0
Number of shares vested							61,667
Weighted average fair value of vested shares							$ 257,000
Weighted average fair value of vested shares, per share							$ 4.17
Time Vested Restricted Stock Awards [Member] | Selling, general and administrative expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense						0	$ 4,000
Performance Based Restricted Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining unrecognized compensation cost						$ 2,900,000
Number of shares vested						115,855
Weighted average fair value of vested shares						$ 1,200,000
Weighted average fair value of vested shares, per share						$ 10.21
Closing price of common stock	$ 32.23		$ 17.70	$ 17.12	$ 10.21
Vesting period	3 years		3 years	3 years	3 years
Weighted average period over which unrecognized compensation cost is expected to be recognized						2 years 6 months
Performance Based Restricted Stock Units [Member] | Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing price of common stock						$ 30.25
Vesting period						3 years
Performance Based Restricted Stock Units [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted	107,554		102,845	72,380	120,000
Performance Based Restricted Stock Units [Member] | Maximum [Member] | Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted	10,364	28,000
Performance Based Restricted Stock Units [Member] | Selling, general and administrative expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense						$ 265,000	$ 42,000
Performance Based Restricted Stock Units [Member] | First Requisite Service Period [Member] | Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		16 months
Performance Based Restricted Stock Units [Member] | First Requisite Service Period [Member] | Maximum [Member] | Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted		12,000
Performance Based Restricted Stock Units [Member] | Second Requisite Service Period [Member] | Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		28 months
Performance Based Restricted Stock Units [Member] | Second Requisite Service Period [Member] | Maximum [Member] | Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted		16,000