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Stockholders' Equity (Details Textual) (USD $)
 0 Months Ended 1 Months Ended 12 Months Ended 0 Months Ended 1 Months Ended 22 Months Ended 1 Months Ended
Jun. 05, 2014
Jul. 31, 2014
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
May 22, 2014
May 14, 2010
Mar. 31, 2013
Jun. 30, 2012
Dec. 31, 2014
Mar. 31, 2014
May 31, 2013
May 30, 2013
Class of Stock [Line Items]                          
Stock split ratio 0.25us-gaap_StockholdersEquityNoteStockSplitConversionRatio1                        
Preferred Stock [Abstract]                          
Preferred stock, par value (Dollars per share)     $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare           0.001us-gaap_PreferredStockParOrStatedValuePerShare      
Convertible preferred stock, shares issued upon conversion, conversion price ($ per share)     $ 27.20ino_ConvertiblePreferredStockSharesIssuedUponConversionConversionPricePerShare                    
Daily market price triggering mandatory conversion ($ per share)     $ 72.00ino_PreferredStockConversionDailyMarketPriceTriggeringMandatoryConversion                    
Stockholders' Equity (Textual) [Abstract]                          
Proceeds from issuance of common stock     $ 59,209,182us-gaap_ProceedsFromIssuanceOfCommonStock $ 32,883,705us-gaap_ProceedsFromIssuanceOfCommonStock $ 5,325,141us-gaap_ProceedsFromIssuanceOfCommonStock                
Common stock, shares authorized (shares)     600,000,000us-gaap_CommonStockSharesAuthorized 600,000,000us-gaap_CommonStockSharesAuthorized           600,000,000us-gaap_CommonStockSharesAuthorized   600,000,000us-gaap_CommonStockSharesAuthorized 300,000,000us-gaap_CommonStockSharesAuthorized
Transaction costs in warrant issuance     0ino_TransactionCostsAssociatedWithIssuanceofWarrants 315,970ino_TransactionCostsAssociatedWithIssuanceofWarrants 0ino_TransactionCostsAssociatedWithIssuanceofWarrants                
Weighted average price ($ per share) on sale of common stock       $ 4.96ino_WeightedAveragePricePerShareOnSaleOfCommonStock                  
Number of securities called by warrants or rights expired   83,334ino_ClassofWarrantorRightNumberofSecuritiesCalledbyWarrantsorRightsWarrantsExpired                      
Vesting period of Incentive Plan     3 years                    
Contractual year term of Incentive Plan     10 years                    
Number of options outstanding to purchase common stock     4,840,514us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber 4,134,591us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber           4,840,514us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber      
Share-based compensation     5,428,946us-gaap_ShareBasedCompensation 1,868,345us-gaap_ShareBasedCompensation 1,345,613us-gaap_ShareBasedCompensation                
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized     5,300,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized 956,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized           5,300,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized      
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized, period for recognition     2 years 0 months 0 days 1 year 10 months 0 days                  
Aggregate intrinsic value of options outstanding     18,100,000ino_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAggregateIntrinsicValue                    
Aggregate intrinsic value for options exercisable     14,600,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1             14,600,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1      
Options exercisable, remaining contractual term     4 years 8 months 12 days                    
Number of options expected to vest     1,191,093ino_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExpectedtoVestOutstandingNumber             1,191,093ino_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsExpectedtoVestOutstandingNumber      
Options, expirations in period, weighted average exercise price ($ per share)     $ 15.95us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice $ 5.32us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice $ 7.32us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice                
Options, expirations in period     70,517us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod 124,003us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod 51,875us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod                
Options, grants in period, weighted average grant date fair value ($ per share)     $ 11.52us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 1.76us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 1.88us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue                
Proceeds from stock options exercised     1,400,000us-gaap_ProceedsFromStockOptionsExercised 1,600,000us-gaap_ProceedsFromStockOptionsExercised 0us-gaap_ProceedsFromStockOptionsExercised                
Options, exercises in period, aggregate intrinsic value     2,000,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue 2,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue                
Employee                          
Stockholders' Equity (Textual) [Abstract]                          
Share-based compensation     4,800,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= ino_EmployeeMember		 1,200,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= ino_EmployeeMember		 1,200,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= ino_EmployeeMember		                
Research and Development Expense                          
Stockholders' Equity (Textual) [Abstract]                          
Share-based compensation     2,800,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_ResearchAndDevelopmentExpenseMember		 550,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_ResearchAndDevelopmentExpenseMember		 555,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_ResearchAndDevelopmentExpenseMember		                
General and Administrative Expense                          
Stockholders' Equity (Textual) [Abstract]                          
Share-based compensation     2,000,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember		 605,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember		 638,000us-gaap_ShareBasedCompensation
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_GeneralAndAdministrativeExpenseMember		                
Non Employee                          
Stockholders' Equity (Textual) [Abstract]                          
Number of options outstanding to purchase common stock     937,517us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_IncomeStatementLocationAxis
= ino_NonEmployeeMember		             937,517us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_IncomeStatementLocationAxis
= ino_NonEmployeeMember		      
Allocated share-based compensation expense     585,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= ino_NonEmployeeMember		 714,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= ino_NonEmployeeMember		 153,000us-gaap_AllocatedShareBasedCompensationExpense
/ us-gaap_IncomeStatementLocationAxis
= ino_NonEmployeeMember		                
Stock and Cash Based Incentive Plan                          
Stockholders' Equity (Textual) [Abstract]                          
Increased number of securities available for future issuance           1,250,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		 500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		            
Number of potential shares authorized for issuance under a share-based compensation plan             513,833ino_NumberOfPotentialSharesAuthorizedForIssuanceUnderShareBasedCompensationPlan
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		            
Reserved number of shares under the Incentive Plan     4,742,831us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		             4,742,831us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		      
Increased aggregate number of shares available for grants under the Incentive Plan     967,598us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		             967,598us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		      
Number of shares of vested restricted stock outstanding under the plan     60,000ino_NumberOfSharesOfVestedRestrictedStockOutstandingUnderPlan
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		                    
Number of common stock shares outstanding under the Incentive Plan     3,288,761us-gaap_CommonStockOtherSharesOutstanding
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		             3,288,761us-gaap_CommonStockOtherSharesOutstanding
/ us-gaap_AwardTypeAxis
= ino_StockAndCashBasedIncentivePlanMember		      
Amended 2000 Stock Option Plan                          
Stockholders' Equity (Textual) [Abstract]                          
Number of options outstanding to purchase common stock     197,629us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ino_AmendedTwoThousandStockOptionPlanMember		             197,629us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_AwardTypeAxis
= ino_AmendedTwoThousandStockOptionPlanMember		      
Common Stock Warrants                          
Stockholders' Equity (Textual) [Abstract]                          
Warrants expired to purchase number of shares of common stock       14,555ino_WarrantsExpiredToPurchaseNumberOfSharesOfCommonStock
/ us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis
= us-gaap_WarrantMember		                  
Underwritten public offering                          
Stockholders' Equity (Textual) [Abstract]                          
Common stock, capital shares reserved for future issuance (shares)               6,844,317us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember		          
Class of warrant or right, number of securities called by warrants or rights               3,422,158us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember		          
Purchase price for common stock and warrant ($ per share/unit)               2.20ino_PurchasePricePerUnitOfCommonStockAndWarrant
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember		          
Class of warrant or right, number of securities called by each warrant or right               0.50us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByEachWarrantOrRight
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember		          
Class of warrant or right, securities called by warrants or rights, price per share               $ 3.1744ino_ClassOfWarrantOrRightSecuritiesCalledByWarrantsOrRightsPricePerShare
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember		          
Term of the warrants in years               5 years 6 months          
Potential proceeds from issue of common stock               14,000,000ino_PotentialProceedsFromIssueOfCommonStock
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember		          
Sales Agreement                          
Stockholders' Equity (Textual) [Abstract]                          
Potential sales proceeds                 25,000,000.0ino_PotentialProceedsFromSaleOfCommonStockThroughPlacementAgentForResale
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= us-gaap_ShareDistributionMember		        
Rate of commission or discount rate to placement agent                 3.00%ino_RateOfCommissionOrDiscountToPlacementAgent
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= us-gaap_ShareDistributionMember		        
Shares of common stock sold under sales agreement       3,925,167ino_CommonStockSoldUnderSalesAgreement
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= us-gaap_ShareDistributionMember		                  
Net proceeds from the transaction       18,900,000ino_ProceedsFromIssuanceOfCommonStockAndWarrants
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= us-gaap_ShareDistributionMember		                  
VGX Equity Compensation Plan                          
Stockholders' Equity (Textual) [Abstract]                          
Number of options outstanding to purchase common stock     1,354,124us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_VgxEquityCompensationPlanMember		             1,354,124us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_VgxEquityCompensationPlanMember		      
Minimum                          
Preferred Stock [Abstract]                          
Average daily trading volume triggering mandatory conversion (shares)     6,250ino_ConvertiblePreferredStockAverageDailyTradingVolumeTriggeringMandatoryConversion
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		                    
Series C Preferred Stock                          
Class of Stock [Line Items]                          
Shares converted (shares)     3us-gaap_ConversionOfStockSharesConverted1
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember		                    
Preferred Stock [Abstract]                          
Preferred stock, redemption price ($ per share)     $ 10,000us-gaap_PreferredStockRedemptionPricePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember		             10,000us-gaap_PreferredStockRedemptionPricePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember		      
Preferred stock, par value (Dollars per share)     $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember		 $ 0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember		           0.001us-gaap_PreferredStockParOrStatedValuePerShare
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember		      
Notice period for mandatory conversion of preferred stock     30 days                    
Convertible preferred stock, shares issued upon conversion (shares)     8,456us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember		             8,456us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion
/ us-gaap_StatementClassOfStockAxis
= us-gaap_SeriesCPreferredStockMember		      
Common stock                          
Class of Stock [Line Items]                          
Conversions of preferred stock to common stock, shares     1,103us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementClassOfStockAxis
= us-gaap_CommonStockMember		                    
March 2013 financing                          
Stockholders' Equity (Textual) [Abstract]                          
Stock issued during period, shares, warrants exercised     471,590ino_StockIssuedDuringPeriodSharesWarrantsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_MarchTwoThousandThirteenFinancingMember		 2,666,477ino_StockIssuedDuringPeriodSharesWarrantsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_MarchTwoThousandThirteenFinancingMember		           3,138,067ino_StockIssuedDuringPeriodSharesWarrantsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_MarchTwoThousandThirteenFinancingMember		      
Net proceeds from the transaction     1,500,000ino_ProceedsFromIssuanceOfCommonStockAndWarrants
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_MarchTwoThousandThirteenFinancingMember		 8,500,000ino_ProceedsFromIssuanceOfCommonStockAndWarrants
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_MarchTwoThousandThirteenFinancingMember		                  
January Two Thousand Eleven Financing                          
Stockholders' Equity (Textual) [Abstract]                          
Stock issued during period, shares, warrants exercised     1,673,750ino_StockIssuedDuringPeriodSharesWarrantsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_JanuaryTwoThousandElevenFinancingMember		 967,550ino_StockIssuedDuringPeriodSharesWarrantsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_JanuaryTwoThousandElevenFinancingMember		                  
Net proceeds from the transaction     9,400,000ino_ProceedsFromIssuanceOfCommonStockAndWarrants
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_JanuaryTwoThousandElevenFinancingMember		 5,400,000ino_ProceedsFromIssuanceOfCommonStockAndWarrants
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_JanuaryTwoThousandElevenFinancingMember		                  
Warrants Assumed in June Two Thousand Nine Merger                          
Stockholders' Equity (Textual) [Abstract]                          
Stock issued during period, shares, warrants exercised     274,083ino_StockIssuedDuringPeriodSharesWarrantsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_WarrantsAssumedInJuneTwoThousandNineMergerMember		                    
Net proceeds from the transaction     1,000,000ino_ProceedsFromIssuanceOfCommonStockAndWarrants
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_WarrantsAssumedInJuneTwoThousandNineMergerMember		                    
December Two Thousand Eleven Financing                          
Stockholders' Equity (Textual) [Abstract]                          
Stock issued during period, shares, warrants exercised       1,443,696ino_StockIssuedDuringPeriodSharesWarrantsExercised
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_DecemberTwoThousandElevenFinancingMember		                  
Net proceeds from the transaction       3,800,000ino_ProceedsFromIssuanceOfCommonStockAndWarrants
/ us-gaap_ClassOfWarrantOrRightAxis
= ino_DecemberTwoThousandElevenFinancingMember		                  
Common stock                          
Class of Stock [Line Items]                          
Conversions of preferred stock to common stock, shares     1,103us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		                    
Stockholders' Equity (Textual) [Abstract]                          
Issuance of common stock for cash, net of financing costs, shares (shares)     5,452,725us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 3,925,167us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		 2,336,153us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		                
Common stock | Underwritten public offering                          
Stockholders' Equity (Textual) [Abstract]                          
Issuance of common stock for cash, net of financing costs, shares (shares)                     5,452,725us-gaap_StockIssuedDuringPeriodSharesNewIssues
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		    
Public offering price ($ per share)                     $ 11.60ino_SaleofStockPublicOfferingPricePerShare
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		    
Proceeds from issuance of common stock                     $ 59,200,000us-gaap_ProceedsFromIssuanceOfCommonStock
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember		    
Common stock | Underwritten Public Offering Overallotment Option                          
Stockholders' Equity (Textual) [Abstract]                          
Common stock, capital shares reserved for future issuance (shares)                     711,225us-gaap_CommonStockCapitalSharesReservedForFutureIssuance
/ us-gaap_DistributionsMadeToMemberOrLimitedPartnerByDistributionTypeAxis
= ino_UnderwrittenPublicOfferingOverallotmentOptionMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember