Quarterly report pursuant to Section 13 or 15(d)

Intangible Asset Acquisition and Cross License Agreement (Details)

v2.4.1.9
Intangible Asset Acquisition and Cross License Agreement (Details) (USD $)
6 Months Ended 0 Months Ended 3 Months Ended 6 Months Ended 0 Months Ended
Jan. 31, 2015
item
Mar. 14, 2011
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2014
Mar. 24, 2011
Jul. 31, 2014
Intangible Asset Acquisition and Cross License Agreement disclosures              
Fees for sublicense, maximum (as a percent) 10.00%oncs_CrossLicenseAgreementMaximumPercentageOfFeesForSublicense            
Royalty on net sales, maximum (as a percent) 10.00%oncs_CrossLicenseAgreementMaximumRoyaltyAsPercentageOfNetSales            
Number of licensors of Inovio that Company will pay under the license 1oncs_CrossLicenseAgreementLiabilityForPaymentsToLicensorsOfSellerNumber            
Intangible assets, relative fair value $ 2,962,000us-gaap_FiniteLivedIntangibleAssetsFairValueDisclosure   $ 2,962,000us-gaap_FiniteLivedIntangibleAssetsFairValueDisclosure        
Discount 174,000oncs_AcquiredFiniteLivedIntangibleAssetDiscountAmount            
Purchase price allocation of assets acquired              
Tangible assets - machinery, property and inventory, accounted for as an asset acquisition 38,000oncs_BusinessCombinationRecognizedIdentifiableTangibleAssetsAcquired   38,000oncs_BusinessCombinationRecognizedIdentifiableTangibleAssetsAcquired        
Patents              
Intangible Asset Acquisition and Cross License Agreement disclosures              
Intangible assets, estimated fair value 3,000,000us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
           
Purchase price allocation of assets acquired              
Accumulated amortization 2,672,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
  2,672,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
      2,323,000us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
Weighted average remaining amortization period for patents   4 years          
Amortization expense 349,000us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
  174,000us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
174,000us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
349,000us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_PatentsMember
   
Engineering and quality documentation              
Intangible Asset Acquisition and Cross License Agreement disclosures              
Intangible assets, estimated fair value 0us-gaap_FinitelivedIntangibleAssetsAcquired1
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= oncs_EngineeringAndQualityDocumentationMember
           
Asset purchase of SECTA technology accounted for as an asset acquisition              
Intangible Asset Acquisition and Cross License Agreement disclosures              
Scheduled payments to Inovio for assets accounted for as an asset acquisition           3,000,000us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_BusinessAcquisitionAxis
= oncs_SECTATechnologyAssetPurchaseAgreementMember
 
Consideration received $ 0oncs_CrossLicenseAgreementConsiderationReceived
/ us-gaap_BusinessAcquisitionAxis
= oncs_SECTATechnologyAssetPurchaseAgreementMember