Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2022	Mar. 23, 2023	Jun. 30, 2022
Document Information Line Items
Entity Registrant Name	PERASO INC.
Trading Symbol	PRSO
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		14,269,590
Entity Public Float			$ 22,138,865
Amendment Flag	false
Entity Central Index Key	0000890394
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2022
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	FY
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	false
Document Annual Report	true
Document Transition Report	false
Entity File Number	000-32929
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0291941
Entity Address, Address Line One	2309 Bering Drive
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
Title of 12(b) Security	Common Stock, par value $0.001 per share
Security Exchange Name	NASDAQ
Entity Interactive Data Current	Yes
Auditor Firm ID	572
Auditor Name	Weinberg & Company
Auditor Location	Los Angeles, California