v3.26.1
Fair Value - Additional Information (Details) - USD ($)
3 Months Ended
May 03, 2026
May 04, 2025
Fair Value [Abstract]
Other than temporary impairment on available for sale securities
$ 0
$ 0
X
- Definition
Other Than Temporary Impairment On Available For Sale Securities
+ References
No definition available.
+ Details
Name:
dlth_OtherThanTemporaryImpairmentOnAvailableForSaleSecurities
Namespace Prefix:
dlth_
Data Type:
xbrli:monetaryItemType
Balance Type:
debit
Period Type:
duration
X
- References
No definition available.
+ Details
Name:
us-gaap_FairValueDisclosuresAbstract
Namespace Prefix:
us-gaap_
Data Type:
xbrli:stringItemType
Balance Type:
na
Period Type:
duration