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Discontinued Operations (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Net income (loss) $ (4,523,731)us-gaap_NetIncomeLoss $ (2,659,189)us-gaap_NetIncomeLoss
Southern Bullion [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Net income (loss)   (1,900,000)us-gaap_NetIncomeLoss
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= dgse_SouthernBullionMember
Southern Bullion [Member] | Trade name [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Loss on writedown of operating assets 2,900,000us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_TradeNamesMember
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= dgse_SouthernBullionMember		  
Southern Bullion [Member] | Fixed-assets [Member]    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Loss on writedown of operating assets $ 296,000us-gaap_DisposalGroupNotDiscontinuedOperationLossGainOnWriteDown
/ us-gaap_FairValueByAssetClassAxis
= us-gaap_PropertyPlantAndEquipmentMember
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= dgse_SouthernBullionMember