Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Dec. 31, 2021
Mar. 21, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Trading Symbol SONM    
Entity Registrant Name SONIM TECHNOLOGIES INC    
Entity Central Index Key 0001178697    
Current Fiscal Year End Date --12-31    
Entity Filer Category Non-accelerated Filer    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Small Business true    
Entity Public Float     $ 37,359,618
Entity Common Stock, Shares Outstanding   19,269,213  
ICFR Auditor Attestation Flag false    
Entity Current Reporting Status Yes    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Interactive Data Current Yes    
Entity Shell Company false    
Title of 12(b) Security Common Stock, par value $0.001 per share    
Security Exchange Name NASDAQ    
Entity File Number 001-38907    
Entity Incorporation, State or Country Code DE    
Entity Address, State or Province TX    
Entity Address, Address Line One 6500 River Place Boulevard, Bldg. 7    
Entity Address, Address Line Two S#250    
Entity Address, City or Town Austin    
Entity Tax Identification Number 94-3336783    
Entity Address, Postal Zip Code 78730    
City Area Code 650    
Local Phone Number 378-8100    
Document Annual Report true    
Document Transition Report false    
Auditor Name Moss Adams LLP    
Auditor Firm ID 659    
Auditor Location Campbell, CA    
Documents Incorporated by Reference


Certain information required by Part III, Items 10-14 of this Form 10-K will either be (i) included in an amendment to this Annual Report on Form 10-K, or (ii) incorporated by reference to the Registrant's definitive Proxy Statement for the 2022 Annual Meeting of Stockholders to be filed with the Securities and Exchange Commission not later than 120 days after the end of the fiscal year covered by this Form 10-K.