XML 70 R55.htm IDEA: XBRL DOCUMENT v3.3.1.900

Retirement Plan (Narrative) (Details) - 401(k) profit sharing plan [Member] - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2016	Feb. 01, 2015	Feb. 02, 2014
Profit sharing contributions percent on eligible wages	0.00%	0.00%	5.00%
Total expenses under the retirement plan	$ 0.5	$ 0.4	$ 0.6
Contribution on 3% of Participant Compensation [Member]
Quarterly employer matching contribution percent of match	100.00%
Contribution on 2% of Participant Compensation [Member]
Quarterly employer matching contribution percent of match	50.00%
Employer Matching Contribution 100% [Member]
Participant percentage contribution to the plan	3.00%
Employer Matching Contribution 50% [Member]
Participant percentage contribution to the plan	2.00%

X

- Definition

Defined Contribution Plan Profit Sharing Contributions Percent

+ References

No definition available.

+ Details

Name:	dlth_DefinedContributionPlanProfitSharingContributionsPercent
Namespace Prefix:	dlth_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of administrative expenses incurred by a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanAdministrativeExpenses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DefinedContributionPlanTypeAxis=dlth_FourZeroOneKProfitSharingPlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementScenarioAxis=dlth_ContributionOnFirstThreePercentOfParticipantCompensationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementScenarioAxis=dlth_ContributionOnTwoPercentOfParticipantCompensationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementScenarioAxis=dlth_EmployerMatchingContributionOneMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementScenarioAxis=dlth_EmployerMatchingContributionTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: