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Subsequent Events (Details) (USD $)
12 Months Ended 1 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Feb. 25, 2014
Jul. 19, 2012
Feb. 04, 2015
Subsequent Event [Line Items]          
Net loss $ (4,523,731)us-gaap_NetIncomeLoss $ (2,659,189)us-gaap_NetIncomeLoss      
Two Stores in DFW Market [Member]          
Subsequent Event [Line Items]          
Net loss (200,000)us-gaap_NetIncomeLoss
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= dgse_TwoStoresInDallasFortWorthMarketMember
       
NTR Loan Agreement [Member]          
Subsequent Event [Line Items]          
Maturity date     Aug. 01, 2015 Aug. 01, 2014  
Interest rate, credit       2.00%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_DebtInstrumentAxis
= us-gaap_LoansPayableMember
 
Outstanding balance of credit facility 2,303,359us-gaap_LineOfCredit
/ us-gaap_DebtInstrumentAxis
= us-gaap_LoansPayableMember
       
Subsequent Event [Member] | Two Stores in DFW Market [Member]          
Subsequent Event [Line Items]          
Expected accelerated lease expense and termination fees 190,000us-gaap_ProvisionForLeaseLosses
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= dgse_TwoStoresInDallasFortWorthMarketMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
       
Accelerated lease expense, recognition end date Mar. 31, 2015        
Subsequent Event [Member] | Retail Space in Euless Texas [Member]          
Subsequent Event [Line Items]          
Area of office space 4,400us-gaap_AreaOfRealEstateProperty
/ us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis
= dgse_RetailSpaceInEulessTexasMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
       
Monthly rent $ 6,967dgse_FutureRentalPaymentAmount
/ us-gaap_PropertySubjectToOrAvailableForOperatingLeaseAxis
= dgse_RetailSpaceInEulessTexasMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
       
Lease term 60 months        
Term of lease renewal 60 months        
Subsequent Event [Member] | NTR Loan Agreement [Member]          
Subsequent Event [Line Items]          
Maturity date         Aug. 01, 2017
Interest rate, credit         2.00%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
/ us-gaap_DebtInstrumentAxis
= us-gaap_LoansPayableMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember