Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2020	May 26, 2020
Document and Entity Information
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Entity Registrant Name	Summit Wireless Technologies, Inc.
Entity Central Index Key	0001682149
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Trading Symbol	WISA
Entity Common Stock, Shares Outstanding		3,398,853
Entity Interactive Data Current	Yes
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity Small Business	true
Entity Current Reporting Status	Yes
Entity Shell Company	false