Quarterly report pursuant to Section 13 or 15(d)

Document and Entity Information

Document and Entity Information - shares
9 Months Ended
Sep. 30, 2021
Nov. 09, 2021
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Sep. 30, 2021  
Entity File Number 001-38608  
Entity Registrant Name Summit Wireless Technologies, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 30-1135279  
Entity Address, Address Line One 6840 Via Del Oro, Ste. 280  
Entity Address, City or Town San Jose  
Entity Address, Country CA  
Entity Address, Postal Zip Code 95119  
City Area Code 408  
Local Phone Number 627-4716  
Title of 12(b) Security Common Stock, par value $0.0001 per share  
Trading Symbol WISA  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   15,803,940
Entity Central Index Key 0001682149  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2021  
Document Fiscal Period Focus Q3  
Amendment Flag false