Document and Entity Information - $ / shares	3 Months Ended
	Mar. 31, 2020	Jun. 11, 2020
Cover [Abstract]
Entity Central Index Key	0001395848
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2020
Document Transition Report	false
Entity File Number	001-37582
Entity Registrant Name	ADESTO TECHNOLOGIES CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	16-1755067
Entity Address, Address Line One	3600 Peterson Way
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	400-0578
Title of 12(b) Security	Class A common stock
Entity Listing, Par Value Per Share	$ 0.0001
Trading Symbol	IOTS
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		31,249,484
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false