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Investment in Affiliated Entity (Details) | Dec. 31, 2014 | Dec. 31, 2013
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Related Party Transaction [Line Items] |  |
Percentage of ownership | 20.00%us-gaap_EquityMethodInvestmentOwnershipPercentage |
VGX International |  |
Related Party Transaction [Line Items] |  |
Percentage of ownership | 10.60%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ino_VgxInternationalMember | 14.70%us-gaap_EquityMethodInvestmentOwnershipPercentage / us-gaap_RelatedPartyTransactionsByRelatedPartyAxis = ino_VgxInternationalMember

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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571 + Details
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Balance Type: | na
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- Details
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Period Type: | duration

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- Details
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Balance Type: |
Period Type: |