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Discontinued Operations of Adeona Clinical Laboratory and Note Receivable (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Operating Costs and Expenses: |  |  |
General and administrative | $ 6,013 us-gaap_GeneralAndAdministrativeExpense | $ 5,832 us-gaap_GeneralAndAdministrativeExpense | $ 5,012 us-gaap_GeneralAndAdministrativeExpense
Other Income: |  |  |
Income from discontinued operations | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity | 216 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Adeona Clinical Laboratory [Member] |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |
Laboratory fees, net | 0 syn_LaboratoryFeesNet / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 0 syn_LaboratoryFeesNet / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 115 syn_LaboratoryFeesNet / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember
Operating Costs and Expenses: |  |  |
General and administrative | 0 us-gaap_GeneralAndAdministrativeExpense / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 0 us-gaap_GeneralAndAdministrativeExpense / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 466 us-gaap_GeneralAndAdministrativeExpense / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember
Cost of laboratory services | 0 syn_DisposalGroupIncludingDiscontinuedOperationLaboratoryServicesCosts / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 0 syn_DisposalGroupIncludingDiscontinuedOperationLaboratoryServicesCosts / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 110 syn_DisposalGroupIncludingDiscontinuedOperationLaboratoryServicesCosts / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember
Total operating costs and expenses | 0 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 0 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 576 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember
Loss from discontinued operations | 0 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 0 us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | (461)us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember
Other Income: |  |  |
Gain on sale of Adeona Clinical Laboratory | 0 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 0 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | 677 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember
Income from discontinued operations | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | $ 0 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember | $ 216 us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = syn_AdeonaClinicalLaboratoryMember

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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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