XML 13 R1.htm IDEA: XBRL DOCUMENT v3.23.1
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2022
Mar. 27, 2023
Jun. 30, 2022
Document and Entity Information      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Document Transition Report false    
Entity File Number 001-32295    
Entity Registrant Name FENNEC PHARMACEUTICALS INC.    
Entity Incorporation, State or Country Code CA    
Entity Tax Identification Number 20-0442384    
Entity Address, Address Line One PO Box 13628, 68 TW Alexander Drive    
Entity Address, City or Town Research Triangle Park    
Entity Address, State or Province NC    
Entity Address, Postal Zip Code 27709    
City Area Code 919    
Local Phone Number 636-4530    
Title of 12(b) Security Common Shares, no par value    
Trading Symbol FENCF    
Security Exchange Name NASDAQ    
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 Common Stock, Shares Outstanding   26,411,520  
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001211583    
Amendment Flag false    
Entity Voluntary Filers No    
Entity Well-known Seasoned Issuer No    
Entity Public Float     $ 98,210,075
ICFR Auditor Attestation Flag false    
Auditor Name HASKELL & WHITE LLP    
Auditor Firm ID 200    
Auditor Location Irvine, California