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Commitments and Contingencies - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 Agreement | Mar. 31, 2013
Commitments And Contingencies Disclosure [Abstract] |  |
Lease expiration | 2019 |
Lease expiration extension | Mar. 31, 2024 |
Rent expense | $ 231 | $ 223
Milestone payments from the Company | 19,000 |
Number of additional license agreements | 2 |
License agreements fee | $ 2,300 |

X
- Definition Additional milestone payments maximum. + References No definition available. + Details
Name: | scyx_AdditionalMilestonePaymentsMaximum
Namespace Prefix: | scyx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Lease expiration extension date under option. + References No definition available. + Details
Name: | scyx_LeaseExpirationExtensionDateUnderOption
Namespace Prefix: | scyx_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Lease expiration year. + References No definition available. + Details
Name: | scyx_LeaseExpirationYear
Namespace Prefix: | scyx_
Data Type: | xbrli:gYearItemType
Balance Type: | na
Period Type: | duration

X
- Definition Milestone payments. + References No definition available. + Details
Name: | scyx_MilestonePayments
Namespace Prefix: | scyx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of license agreements. + References No definition available. + Details
Name: | scyx_NumberOfLicenseAgreements
Namespace Prefix: | scyx_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
Name: | us-gaap_LeaseAndRentalExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration