Sonim Technologies Inc. Annual report pursuant to Section 13 and 15(d)

Entity Level Information - Additional Information (Details)

v3.20.1

Entity Level Information - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($) Segment	Dec. 31, 2018 USD ($)
Revenues From External Customers And Long Lived Assets [Line Items]
Number of reporting segment \| Segment	1
Allowance for credit losses	$ 52	$ 11
Receivables \| Customer Concentration \| Customer One
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage	40.00%	44.00%
Receivables \| Customer Concentration \| Customer Two
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage	28.00%	43.00%
U.S [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	$ 889	$ 2,013
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	$ 642	$ 393

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