XML 40 R30.htm IDEA: XBRL DOCUMENT v3.5.0.2

Commitments and Contigencies - Pfizer License Agreement (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Feb. 29, 2016	Dec. 31, 2015
Commitments and Contingencies
No liabilities were recorded related to the license agreement	$ 14,429		$ 8,917
Pfizer, Inc. | License Agreement
Commitments and Contingencies
No liabilities were recorded related to the license agreement		$ 0

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_CollaborativeArrangementsAndNoncollaborativeArrangementTransactionsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

+ References

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 210.5-02.19-26)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_Liabilities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_CounterpartyNameAxis=gemp_PfizerInc.Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=gemp_LicenseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: