Annual report pursuant to Section 13 and 15(d)

Cover

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Cover - USD ($)
 12 Months Ended
Dec. 31, 2023
Apr. 10, 2024
Jun. 30, 2023
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2023    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Current Fiscal Year End Date --12-31    
Entity File Number 001-41173    
Entity Registrant Name NexGel, Inc.    
Entity Central Index Key 0001468929    
Entity Tax Identification Number 26-4042544    
Entity Incorporation, State or Country Code DE    
Entity Address, Address Line One 2150 Cabot Blvd West    
Entity Address, Address Line Two Suite B    
Entity Address, City or Town Langhorne    
Entity Address, State or Province PA    
Entity Address, Postal Zip Code 19047    
City Area Code (215)    
Local Phone Number 702-8550    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status No    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Elected Not To Use the Extended Transition Period false    
Entity Shell Company false    
Entity Public Float     $ 10,695,605
Entity Common Stock, Shares Outstanding   6,227,624  
Documents Incorporated by Reference [Text Block] Portions of the registrant’s definitive proxy statement relating to its 2024 annual meeting of stockholders (the “2024 Proxy Statement”) are incorporated by reference into Part III of this Annual Report on Form 10-K where indicated. The 2024 Proxy Statement will be filed with the U.S. Securities and Exchange Commission within 120 days after the end of the year to which this report relates.    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Firm ID 76    
Auditor Name Turner, Stone & Company, L.L.P    
Auditor Location Dallas, Texas    
Common Stock, par value 0.001 [Member]      
Title of 12(b) Security Common Stock, par value $0.001    
Trading Symbol NXGL    
Security Exchange Name NASDAQ    
Warrants to Purchase Common Stock [Member]      
Title of 12(b) Security Warrants to Purchase Common Stock    
Trading Symbol NXGLW    
Security Exchange Name NASDAQ