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Subsequent Events Subsequent Event (Details) (USD $)
0 Months Ended
Apr. 27, 2015
Apr. 29, 2015
Dec. 31, 2024
Subsequent Event [Member]      
Subsequent Event [Line Items]      
Area of Real Estate Property 12,275us-gaap_AreaOfRealEstateProperty
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Lessee Leasing Arrangements, Operating Leases, Term of Contract 8 years 8 months 12 days    
Operating Leases, Rent Expense, Net $ 251,637.50us-gaap_OperatingLeasesRentExpenseNet
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Operating Leases, Rent Expenses Per Month, Net 20,969.79dlhc_OperatingLeasesRentExpensesPerMonthNet
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Operating Lease, Rent Expense Excused 265,209.99dlhc_OperatingLeaseRentExpenseExcused
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
   
Leesee Leasing Arrangement, Operating Leases, Term of Excused Rent 2 years    
Lessee Leasing Arrangements, Operating Leases, Renewal Term 5 years    
Subsequent Event [Member] | Chief Executive Officer [Member]      
Subsequent Event [Line Items]      
Employment Agreement with Chief Financial Officer Initial Term   1 year  
Officers' Compensation   50,000us-gaap_OfficersCompensation
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_ChiefExecutiveOfficerMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
 
Scenario, Forecast [Member]      
Subsequent Event [Line Items]      
Operating Leases, Rent Expense, Net     306,629.50us-gaap_OperatingLeasesRentExpenseNet
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember
Operating Leases, Rent Expenses Per Month, Net     $ 25,552.46dlhc_OperatingLeasesRentExpensesPerMonthNet
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioForecastMember