Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions - Additional Information (Detail)

v2.4.1.9
Related Party Transactions - Additional Information (Detail) (USD $)
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Related Party Transaction [Line Items]      
Accounts payable and accrued expenses $ 509,318us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent   $ 710,210us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
Principal Owner [Member] | Lantibiotic ECC [Member]      
Related Party Transaction [Line Items]      
Cash paid to Intrexon Corporation 13,828ogen_RelatedPartyTransactionAmountPaidToRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_PrincipalOwnerMember
/ us-gaap_TypeOfArrangementAxis
= ogen_LantibioticExclusiveChannelCollaborationMember
540,025ogen_RelatedPartyTransactionAmountPaidToRelatedParty
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_PrincipalOwnerMember
/ us-gaap_TypeOfArrangementAxis
= ogen_LantibioticExclusiveChannelCollaborationMember
 
Accounts payable and accrued expenses $ 2,871us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_PrincipalOwnerMember
/ us-gaap_TypeOfArrangementAxis
= ogen_LantibioticExclusiveChannelCollaborationMember
$ 316,353us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_PrincipalOwnerMember
/ us-gaap_TypeOfArrangementAxis
= ogen_LantibioticExclusiveChannelCollaborationMember
 
Percentage of outstanding common stock 24.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_PrincipalOwnerMember
/ us-gaap_TypeOfArrangementAxis
= ogen_LantibioticExclusiveChannelCollaborationMember
24.00%us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= us-gaap_PrincipalOwnerMember
/ us-gaap_TypeOfArrangementAxis
= ogen_LantibioticExclusiveChannelCollaborationMember