Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
$ in Millions
12 Months Ended
Jul. 31, 2022
Oct. 31, 2022
Jan. 31, 2022
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Jul. 31, 2022    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2022    
Current Fiscal Year End Date --07-31    
Entity File Number 000-54318    
Entity Central Index Key 0001444307    
Entity Tax Identification Number 98-0573252    
Entity Incorporation, State or Country Code NV    
Entity Address, Address Line One 24 North Main Street    
Entity Address, City or Town Pennington    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 08534    
City Area Code (855)    
Local Phone Number 662-6732    
Title of 12(b) Security Common Stock, par value $0.0001 per share    
Trading Symbol ONCS    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 21
Entity Common Stock, Shares Outstanding   39,396,309  
Documents Incorporated by Reference None    
Auditor Firm ID 199    
Auditor Name Mayer Hoffman McCann P.C    
Auditor Location San Diego, California