Summary of Significant Accounting Policies - Amortized Cost, Fair Value, and Corresponding Amount of Gross Unrealized Gains and Losses Recognized in AOCI of Available-for-Sale Security (Details) - USD ($) $ in Thousands	Feb. 01, 2026	Feb. 02, 2025
Debt Securities, Available-for-sale [Line Items]
Estimated Fair Value	$ 4,763	$ 4,491
Fair Value, Inputs, Level 3 [Member] \| Money Market Funds [Member]
Debt Securities, Available-for-sale [Line Items]
Cost or Amortized Cost	12,158
Estimated Fair Value	12,158
Fair Value, Inputs, Level 3 [Member] \| Corporate Trust [Member]
Debt Securities, Available-for-sale [Line Items]
Cost or Amortized Cost	5,137	5,356
Gross Unrealized Losses	(374)	(865)
Estimated Fair Value	$ 4,763	$ 4,491

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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+ Details

DULUTH HOLDINGS INC. 10-K