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Investments (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Summary of investments
Cost	53,327,364us-gaap_AvailableForSaleSecuritiesAmortizedCost	18,983,662us-gaap_AvailableForSaleSecuritiesAmortizedCost
Gross Unrealized Gains	2,737us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	560us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
Gross Unrealized Losses	(254,127)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	(78,614)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
Fair Market Value	53,075,974us-gaap_AvailableForSaleSecurities	18,905,608us-gaap_AvailableForSaleSecurities
Mutual funds
Summary of investments
Cost	29,487,758us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_InvestmentTypeAxis = ino_MutualFundsMember	18,178,518us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_InvestmentTypeAxis = ino_MutualFundsMember
Gross Unrealized Gains	2,667us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_InvestmentTypeAxis = ino_MutualFundsMember	0us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_InvestmentTypeAxis = ino_MutualFundsMember
Gross Unrealized Losses	(216,790)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_InvestmentTypeAxis = ino_MutualFundsMember	(78,614)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_InvestmentTypeAxis = ino_MutualFundsMember
Fair Market Value	29,273,635us-gaap_AvailableForSaleSecurities / us-gaap_InvestmentTypeAxis = ino_MutualFundsMember	18,099,904us-gaap_AvailableForSaleSecurities / us-gaap_InvestmentTypeAxis = ino_MutualFundsMember
Municipal bonds
Summary of investments
Cost	23,839,606us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember	805,144us-gaap_AvailableForSaleSecuritiesAmortizedCost / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember
Gross Unrealized Gains	70us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember	560us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember
Gross Unrealized Losses	(37,337)us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember	0us-gaap_AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember
Fair Market Value	23,802,339us-gaap_AvailableForSaleSecurities / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember	805,704us-gaap_AvailableForSaleSecurities / us-gaap_InvestmentTypeAxis = us-gaap_MunicipalBondsMember
Maximum | Municipal bonds
Summary of investments
Contractual Maturity (less than 1 year)	2 years	1 year

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