v2.4.1.9
Organization and description of business (Sale of SGOCO (Fujian)) (Details) (SGOCO Fujian [Member], USD $)
0 Months Ended 12 Months Ended
Dec. 24, 2014
Dec. 31, 2014
SGOCO Fujian [Member]
   
Sale of SGOCO (Fujian) [Line Items]    
Percentage of equity ownership interest sold 100.00%sgoc_DisposalGroupIncludingDiscontinuedOperationPercentageSold
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgoc_SgocoFujianMember
 
Sale Price   $ 10,975,000us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgoc_SgocoFujianMember
Amount of accounts payable and other payables assumed   80,400,000sgoc_DisposalGroupIncludingDiscontinuedOperationPayablesAssumed
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgoc_SgocoFujianMember
Percentage of accounts payable and other payables in installment   10.00%sgoc_DisposalGroupIncludingDiscontinuedOperationPayablesPercentagePayableInInstallment
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgoc_SgocoFujianMember
Installment amount of Sale Price and Payables   91,400,000sgoc_DisposalGroupIncludingDiscontinuedOperationPayablesInstallmentAmount
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgoc_SgocoFujianMember
Period after the completion of the transactions, after which First installment was due   14 days
Installment amount received   75,900,000sgoc_DisposalGroupIncludingDiscontinuedOperationInstallmentReceived
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgoc_SgocoFujianMember
Liquidated damage charge percentage per month for any late payment   2.00%sgoc_DisposalGroupIncludingDiscontinuedOperationLiquidatedDamagesPercentagePerMonth
/ us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis
= sgoc_SgocoFujianMember
Overdue period after which liquidated damage charge shall be imposed   30 days
Gain from disposal