v3.22.2.2
Document And Entity Information
 6 Months Ended
Jun. 30, 2022
Document Information [Line Items]  
Entity Central Index Key 0001742927
Entity Registrant Name REVIVA PHARMACEUTICALS HOLDINGS, INC.
Amendment Flag false
Document Fiscal Period Focus Q2
Document Fiscal Year Focus 2022
Document Type S-1
Entity Incorporation, State or Country Code DE
Entity Tax Identification Number 85-4306526
Entity Address, Address Line One 19925 Stevens Creek Blvd., Suite 10
Entity Address, City or Town Cupertino
Entity Address, State or Province CA
Entity Address, Postal Zip Code 95014
City Area Code 408
Local Phone Number 501-8881
Entity Filer Category Non-accelerated Filer
Entity Small Business true
Entity Emerging Growth Company true
Entity Ex Transition Period false