Document And Entity Information
Apr. 21, 2020
Document Information [Line Items]  
Entity, Registrant Name INPHI CORPORATION
Document, Type 8-K
Document, Period End Date Apr. 21, 2020
Entity, Incorporation, State or Country Code DE
Entity, File Number 001-34942
Entity, Tax Identification Number 77-0557980
Entity, Address, Address Line One 2953 Bunker Hill Lane
Entity, Address, City or Town Santa Clara
Entity, Address, State or Province CA
Entity, Address, Postal Zip Code 95054
City Area Code 408
Local Phone Number 217-7300
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common Stock
Trading Symbol IPHI
Security Exchange Name NYSE
Entity, Emerging Growth Company false
Amendment Flag false
Entity, Central Index Key 0001160958