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Commitments and Contingencies (Details Textual) $ in Thousands	9 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Aug. 01, 2013 ft²
Commitments And Contingencies [Line Items]
Area of office facilities taken on lease | ft²			5,300
Lease term	3 years
Lease expiry date	Sep. 30, 2016
Rent expense	$ 60	$ 58
Royalty buy down due period	6 months
Minimum
Commitments And Contingencies [Line Items]
Percentage of royalty obligation	12.50%
Percentage of range of royalties that can be bought down	12.50%
Maximum
Commitments And Contingencies [Line Items]
Percentage of royalty obligation	25.00%
Percentage of range of royalties that can be bought down	17.00%
Clinincal Research Agreement with Duke University
Commitments And Contingencies [Line Items]
Agreement termination notice period	90 days
Upon Food and Drug Administration Approval
Commitments And Contingencies [Line Items]
Expected milestone payments due upon approval	$ 8,000
Upon Regulatory Marketing Approval
Commitments And Contingencies [Line Items]
Expected milestone payments due upon approval	$ 5,000
CPEC
Commitments And Contingencies [Line Items]
Percentage of royalty obligation	5.00%

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Agreement termination notice period.

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Area of a real estate property.

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- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

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- Definition

Term of the lessee's leasing arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 840



-SubTopic 20



-Section 50



-Paragraph 1



-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

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