Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Jan. 01, 2023 USD ($) Supplier Segment shares	Jan. 02, 2022 USD ($) shares	Jan. 03, 2021 USD ($) shares	Jan. 03, 2021	Apr. 03, 2022 USD ($)
Accounting Policies [Line Items]
Reporting period, minimum	364 days
Reporting period, maximum	371 days
Cash deposits insured by the Federal Deposit Insurance Corporation	$ 250,000
Cash and cash equivalents	$ 25,565,000	$ 97,420,000
Concentration risk, suppliers | Supplier	700
Concentration risk, largest supplier | Supplier	20
Suppliers accounted for total purchases	35.90%
Percentage of vendors represented greater than of total purchases	5.00%
Vendor represented greater than of total purchases | Supplier	0
Number of reportable segment | Segment	1
Number of performance obligation	one
Percentage of gift card historical breakage rate	5.00%
Stored value card redemption revenue recognized	$ 6,100,000	5,900,000	$ 5,400,000
Outstanding stored value card liabilities	$ 8,800,000	8,300,000
Stored value cards redeemed period	2 years
Advertising expense, net of co-operative advertising allowances	$ 12,100,000	11,000,000.0	10,600,000
Co-operative advertising allowances	0	0	1,100,000
Impairment charges	0	0	$ 0
Self-insurance liabilities	11,100,000	10,200,000
Accrued interest or penalties	$ 0	$ 0
Common Stock [Member]
Accounting Policies [Line Items]
Number of shares repurchased during period | shares	295,719	361,323	0
Share repurchase program, remaining amount available for repurchase					$ 7,700,000
Common Stock [Member] | Current Share Repurchase Program [Member]
Accounting Policies [Line Items]
Share repurchase program, additional authorized amount					$ 25,000,000.0
Accrued expenses [Member]
Accounting Policies [Line Items]
Self-insurance liabilities	$ 4,600,000	$ 4,400,000
Other long-term liabilities [Member]
Accounting Policies [Line Items]
Self-insurance liabilities	6,500,000	5,800,000
Stored Value Card Breakage Revenue [Member]
Accounting Policies [Line Items]
Recognized stored value card breakage revenue	300,000	300,000	$ 300,000
U.S. Treasury Bills [Member]
Accounting Policies [Line Items]
Cash and cash equivalents	0	75,000,000.0
COVID-19 [Member]
Accounting Policies [Line Items]
Percentage of minimum number of retail store locations closed				50.00%
Lease abatements, to decrease on variable lease expense			$ 3,100,000
Deferred, lease liability	100,000	100,000
Merchandise [Member] | Accounting Standards Update 2014-09
Accounting Policies [Line Items]
Estimated right of return related to estimated sales returns	1,200,000	1,200,000
Allowance for sales returns reserve	$ 2,300,000	$ 2,500,000