XML 57 R47.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Related Party Transactions - Convertible Notes (Details) $ in Thousands |  | 3 Months Ended | 4 Months Ended | 6 Months Ended
--- | --- | --- | --- | ---
Jun. 30, 2015 item shares | Mar. 31, 2015 USD ($) item | Feb. 18, 2015 USD ($) | Jun. 30, 2016 USD ($) | Jun. 30, 2015 USD ($) item
Related Party Transactions |  |  |  |  |
Proceeds from issuance of convertible notes | $ |  |  |  | $ 2,651 | $ 1,650
Convertible Notes |  |  |  |  |
Related Party Transactions |  |  |  |  |
Proceeds from issuance of convertible notes | $ |  | $ 2,000 | $ 2,700 |  |
Convertible Notes | Series A Convertible Preferred Stock. |  |  |  |  |
Related Party Transactions |  |  |  |  |
Amount of shares issued in conversion | shares | 516,421 |  |  |  |
Investors Related To Board Member And Officers | Convertible Notes | Series A Convertible Preferred Stock. |  |  |  |  |
Related Party Transactions |  |  |  |  |
Amount of shares issued in conversion | shares | 63,967 |  |  |  |
Investors Related To Board Member And Officers | Debt Issued To Related Parties | Convertible Notes |  |  |  |  |
Related Party Transactions |  |  |  |  |
Proceeds from issuance of convertible notes | $ |  | $ 300 |  |  |
Number of notes issued to related party |  | 4 |  |  |
Number of board members who were issued debt |  | 1 |  |  |
Number of officers |  | 3 |  |  |
Investors Related To Board Member And Officers | Debt Issued To Related Parties | Convertible Notes | Series A Convertible Preferred Stock. |  |  |  |  |
Related Party Transactions |  |  |  |  |
Number of board members who were issued debt | 1 |  |  |  | 1
Number of officers | 3 |  |  |  |
Two Officers | Convertible Notes | Series A Convertible Preferred Stock. |  |  |  |  |
Related Party Transactions |  |  |  |  |
Amount of shares issued in conversion | shares | 68,649 |  |  |  |
Two Officers | Debt Issued To Related Parties | Convertible Notes | Series A Convertible Preferred Stock. |  |  |  |  |
Related Party Transactions |  |  |  |  |
Number of officers | 2 |  |  |  |

X
- Definition Number of Board members in related party transaction. + References No definition available. + Details
Name: | gemp_NumberOfBoardMembersInRelatedPartyTransaction
Namespace Prefix: | gemp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of debt instruments issued. + References No definition available. + Details
Name: | gemp_NumberOfDebtInstrumentsIssued
Namespace Prefix: | gemp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of officers in related party transaction. + References No definition available. + Details
Name: | gemp_NumberOfOfficersInRelatedPartyTransaction
Namespace Prefix: | gemp_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_DebtConversionConvertedInstrumentSharesIssued1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromConvertibleDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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_RelatedPartyTransactionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DebtInstrumentAxis=gemp_SeriesaPreferredConvertibleDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_RedeemableConvertiblePreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=gemp_InvestorsRelatedToBoardMemberAndOfficersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionAxis=gemp_DebtIssuedToRelatedPartiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=gemp_TwoOfficersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |