Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2018
Mar. 15, 2019
Jun. 30, 2018
Document And Entity Information      
Entity Registrant Name Processa Pharmaceuticals, Inc.    
Entity Central Index Key 0001533743    
Document Type 10-K/A    
Document Period End Date Dec. 31, 2018    
Amendment Flag true    
Amendment Description This Amendment No. 1 on Form 10-K/A (this "Amendment No. 1") amends Processa Pharmaceutical, Inc.'s Annual Report on Form 10-K for the year ended December 31, 2018, originally filed with the Securities and Exchange Commission on March 28, 2019 (the "Original Filing") for the purpose of correcting the number of outstanding shares at March 15, 2019 shown on our cover page and for inadvertent footing errors in our consolidated balance sheet. No other changes have been made to the Form 10-K. This Amendment No. 1 to the Form 10-K speaks as of the original filing date of the Form 10-K, does not reflect events that may have occurred subsequent to the original filing date, and does not modify or update in any way disclosures made in the original Form 10-K.    
Current Fiscal Year End Date --12-31    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business Flag true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 25,300,000
Entity Common Stock, Shares Outstanding   38,674,265  
Trading Symbol PCSA    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2018