Name:	syn_AccruedExpensesLineItems
Namespace Prefix:	syn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

The manufacturing costs incurred in the production of goods for sale.

No definition available.

Name:	syn_AccruedManufacturingCosts
Namespace Prefix:	syn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

The carrying value of accrued milestone payments payable as on balance sheet date.

No definition available.

Name:	syn_AccruedMilestonePayable
Namespace Prefix:	syn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Carrying value as of the balance sheet date of obligations and payables pertaining to vendor payments.

No definition available.

Name:	syn_AccruedVendorPayments
Namespace Prefix:	syn_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682