XML 61 R1.htm IDEA: XBRL DOCUMENT v3.20.1
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Mar. 06, 2020
Jun. 30, 2019
Cover [Abstract]      
Entity Registrant Name Oncternal Therapeutics, Inc.    
Entity Central Index Key 0001260990    
Document Type 10-K    
Document Period End Date Dec. 31, 2019    
Amendment Flag false    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Trading Symbol ONCT    
Current Fiscal Year End Date --12-31    
Entity Filer Category Accelerated Filer    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Current Reporting Status Yes    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding   15,387,242  
Entity Public Float     $ 62.4
Entity File Number 000-50549    
Entity Tax Identification Number 62-1715807    
Entity Address, Address Line One 12230 El Camino Real    
Entity Address, Address Line Two Suite 300    
Entity Address, City or Town San Diego    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92130    
City Area Code 858    
Local Phone Number 434-1113    
Entity Interactive Data Current Yes    
Title of 12(b) Security Common Stock, par value $0.001 per share    
Security Exchange Name NASDAQ    
Entity Incorporation, State or Country Code DE    
Document Annual Report true    
Document Transition Report false    
Documents Incorporated by Reference

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant’s proxy statement to be filed with the Securities and Exchange Commission pursuant to Regulation 14A in connection with the Registrant’s 2020 Annual Meeting of Stockholders, which will be filed subsequent to the date hereof, are incorporated by reference into Part III of this Form 10-K. Such proxy statement will be filed with the Securities and Exchange Commission not later than 120 days following the end of the Registrant’s fiscal year ended December 31, 2019.