Basis of Presentation - Additional Information (Details)	1 Months Ended		3 Months Ended	4 Months Ended	6 Months Ended
	Jul. 31, 2020 Employee	Mar. 31, 2020 USD ($) Employee	May 02, 2020 USD ($) Segment	Aug. 02, 2020	Aug. 01, 2020 USD ($) Segment RenewalOption	Aug. 03, 2019 USD ($)	Feb. 02, 2019 USD ($)
Accounting Policies [Line Items]
Number of reportable segments | Segment			1		1
Number of operating segments | Segment			3
Short-term notes					$ 3,500,000
Accrue interest rate, percentage					4.00%
Impairment of long-lived assets			$ 16,300,000		$ 0	$ 0
Impairment of right-of-use asset			12,500,000
Short term leases					$ 0
Operating lease, option to extend					Renewal options are not included in the lease term for automobile and equipment leases because they are not considered reasonably certain of being exercised at lease commencement. Renewal options were not considered for the Company’s corporate headquarters and distribution center lease, which was entered into in 2006 and was for an initial 20-year term
ASU No. 2016-13
Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted					true
Change in accounting principle, accounting standards update, adoption date					May 02, 2020
Change in accounting principle, accounting standards update, immaterial effect					false
ASU No. 2018-13
Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adopted					true
Change in accounting principle, accounting standards update, adoption date					May 02, 2020
Change in accounting principle, accounting standards update, immaterial effect					false
ASU No. 2019-12
Accounting Policies [Line Items]
Change in accounting principle, accounting standards update, adoption date					May 02, 2020
Change in accounting principle, accounting standards update, immaterial effect					false
Change in accounting principle, Accounting standards update, early adoption					true
Store
Accounting Policies [Line Items]
Operating lease, option to extend					The Company’s store leases typically contain options that permit renewals for additional periods of up to five years each. In general, for store leases with an initial term of 10 years or more, the options to extend are not considered reasonably certain at lease commencement. For stores leases with an initial term of 5 years, the Company evaluates each lease independently and, only when the Company considers it reasonably certain that it will exercise an option to extend, will the associated payment of that option be included in the measurement of the right-of-use asset and lease liability.
Operating lease renewal term					5 years
Corporate Headquarter
Accounting Policies [Line Items]
Operating lease renewal term					5 years
Operating lease initial term					20 years
Number of renewal options | RenewalOption					6
Property and Equipment
Accounting Policies [Line Items]
Impairment of long-lived assets			$ 3,800,000
Accounts Payable
Accounting Policies [Line Items]
Short-term notes					$ 2,000,000.0
Domain Name (dxl.com)
Accounting Policies [Line Items]
Indefinite-lived intangible assets, carrying value							$ 1,200,000
Revolving Credit Facility
Accounting Policies [Line Items]
Proceeds from credit facility					$ 53,471,000	$ 72,384,000
Minimum | Store
Accounting Policies [Line Items]
Operating lease initial term					5 years
Maximum
Accounting Policies [Line Items]
Short-term debt, terms					one-year
Maximum | Store
Accounting Policies [Line Items]
Operating lease renewal term					5 years
Operating lease initial term					10 years
Natural Disasters and Other Casualty Events
Accounting Policies [Line Items]
Number of employees laid-off | Employee	430	34
Natural Disasters and Other Casualty Events | Revolving Credit Facility
Accounting Policies [Line Items]
Proceeds from credit facility		$ 30,000,000.0
Natural Disasters and Other Casualty Events | Minimum
Accounting Policies [Line Items]
Percentage of temporary salary reduction				10.00%
Natural Disasters and Other Casualty Events | Maximum
Accounting Policies [Line Items]
Percentage of temporary salary reduction				20.00%