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Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2024
Mar. 25, 2025
Jun. 28, 2024
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2024    
Document Transition Report false    
Entity File Number 001-33678    
Entity Registrant Name NOVABAY PHARMACEUTICALS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 68-0454536    
Entity Address, Address Line One 2000 Powell Street, Suite 1150    
Entity Address, City or Town Emeryville    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 94608    
City Area Code 510    
Local Phone Number 899-8800    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol NBY    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Emerging Growth Company false    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 2,979,107
Entity Common Stock, Shares Outstanding (in shares)   5,816,204  
Auditor Name WithumSmith+Brown, PC    
Auditor Location New York, New York    
Auditor Firm ID 100    
Entity Central Index Key 0001389545    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2024    
Document Fiscal Period Focus FY    
Amendment Flag false