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Document and Entity Information
Dec. 15, 2021
Cover [Abstract]  
Entity Information, Former Legal or Registered Name MoSys,Inc.
Amendment Flag false
Entity Central Index Key 0000890394
Current Fiscal Year End Date --12-31
Document Type 8-K
Document Period End Date Dec. 15, 2021
Entity Registrant Name Peraso Inc.
Entity File Number 000-32929
Entity Incorporation State Country Code DE
Entity Tax Identification Number 77-0291941
Entity Address, Address Line One 2309 Bering Dr.
Entity Address, City or Town San Jose
Entity Address, State or Province CA
Entity Address, Postal Zip Code 95131
City Area Code (408)
Local Phone Number 418-7500
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, par value $0.001 per share
Trading Symbol PRSO
Security Exchange Name NASDAQ
Entity Emerging Growth Company false