Annual report pursuant to Section 13 and 15(d)


Cover - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Mar. 31, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K/A    
Amendment Flag true    
Amendment Description This Amendment No. 1 on Form 10-K/A (the “Amendment”) amends the Annual Report on Form 10-K of Processa Pharmaceuticals, Inc., a Delaware corporation (“we,” “our,” “us” or the “Company”), for the fiscal year ended December 31, 2021, originally filed with the SEC on March 30, 2022 (the “Original Filing”). This Amendment is being filed to amend Part III of the Original Filing to include the information required by and not included in Part III of the Original Filing. In addition, pursuant to the rules of the Securities and Exchange Commission (the “SEC”), we have also included as exhibits currently dated certifications required under Section 302 of The Sarbanes-Oxley Act of 2002. We are amending and refiling Part IV to reflect the inclusion of those certifications. Because no financial statements are contained within this Amendment, we are not including certifications pursuant to Section 906 of The Sarbanes-Oxley Act of 2002    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2021    
Current Fiscal Year End Date --12-31    
Entity File Number 001-39531    
Entity Registrant Name Processa Pharmaceuticals, Inc.    
Entity Central Index Key 0001533743    
Entity Tax Identification Number 45-1539785    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 7380 Coca Cola Drive    
Entity Address, Address Line Two Suite 106    
Entity Address, City or Town Hanover    
Entity Address, State or Province MD    
Entity Address, Postal Zip Code 21076    
City Area Code (443)    
Local Phone Number 776-3133    
Title of 12(b) Security Common Stock, $0.0001 par value per share    
Trading Symbol PCSA    
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     $ 95.4
Entity Common Stock, Shares Outstanding   15,843,621  
Documents Incorporated by Reference None.    
ICFR Auditor Attestation Flag false    
Auditor Firm ID 6143    
Auditor Name BD & Co    
Auditor Location Owings Mills, MD