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Organization and Nature of Operations and Basis of Presentation (Details Textual) (Promissory Note [Member], Adeona Clinical Laboratory, LLC [Member], USD $) | 12 Months Ended |
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Dec. 31, 2013 | Mar. 08, 2012
Promissory Note [Member] | Adeona Clinical Laboratory, LLC [Member] |  |
Organization and Nature of Operations and Basis of Presentation [Line Items] |  |
Notes Payable |  | $ 700,000 us-gaap_NotesPayable / us-gaap_CreditFacilityAxis = us-gaap_CommercialPaperMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = syn_AdeonaClinicalLaboratoryLlcMember
Provision for Doubtful Accounts | $ 763,000 us-gaap_ProvisionForDoubtfulAccounts / us-gaap_CreditFacilityAxis = us-gaap_CommercialPaperMember / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = syn_AdeonaClinicalLaboratoryLlcMember |

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- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 13, 16 -Article 9 + Details
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