Sonim (SONM) 10-Q 12 Aug 20 2020 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2020	Jul. 31, 2020
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q2
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 Common Stock, Shares Outstanding		65,930,191
Entity Current Reporting Status	Yes
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	6836 Bee Cave Road, Bldg. 1
Entity Address, Address Line Two	S#279
Entity Address, City or Town	Austin
Entity Tax Identification Number	94-3336783
Entity Address, Postal Zip Code	78746
City Area Code	650
Local Phone Number	378-8100
Document Quarterly Report	true
Document Transition Report	false

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Assets
Cash and cash equivalents	$ 38,062	$ 11,298
Accounts receivable, net	5,268	10,082
Inventory	15,225	19,531
Prepaid expenses and other current assets	6,342	6,430
Total current assets	64,897	47,341
Property and equipment, net	1,291	1,442
Other assets	5,264	6,676
Total assets	71,452	55,459
Liabilities and stockholders’ equity
Current portion of long-term debt	147	9,821
Accounts payable	11,344	7,234
Accrued expenses	16,895	10,265
Deferred revenue	346	291
Total current liabilities	28,732	27,611
Income tax payable	2,140	1,961
Long-term debt, less current portion	325	362
Total liabilities	31,197	29,934
Commitments and contingencies (Note 10)
Stockholders' equity
Common stock, $0.001 par value per share; 100,000,000 shares authorized: and 65,927,316 and 20,437,235 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively.	66	20
Preferred stock, $0.001 par value per share, 5,000,000 shares authorized
Additional paid-in capital	223,495	191,751
Accumulated deficit	(183,306)	(166,246)
Total stockholders’ equity	40,255	25,525
Total liabilities and stockholders’ equity	$ 71,452	$ 55,459

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (UNAUDITED) - $ / shares	Jun. 30, 2020	Dec. 31, 2019
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	65,927,316	20,437,235
Common stock, shares outstanding	65,927,316	20,437,235
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Net revenues	$ 21,058	$ 43,747	$ 33,764	$ 70,231
Cost of revenues	16,140	29,302	26,681	46,765
Gross profit	4,918	14,445	7,083	23,466
Operating expenses:
Research and development	3,256	7,384	7,192	14,345
Sales and marketing	2,596	4,218	5,727	7,944
General and administrative	5,686	7,424	8,758	9,900
Restructuring costs			1,087
Total operating expenses	11,538	19,026	22,764	32,189
Loss from operations	(6,620)	(4,581)	(15,681)	(8,723)
Interest expense	(302)	(555)	(621)	(977)
Other income (expense), net	6	(6)	(395)	(271)
Loss before income taxes	(6,916)	(5,142)	(16,697)	(9,971)
Income tax expense	(180)	(457)	(363)	(752)
Net loss	$ (7,096)	$ (5,599)	$ (17,060)	$ (10,723)
Net loss per share, basic and diluted	$ (0.22)	$ (0.31)	$ (0.65)	$ (0.63)
Weighted–average shares used in computing net loss per Share, basic and diluted	31,638,250	18,120,143	26,126,037	16,950,375

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands	Total	IPO	Common Stock	Common StockIPO	Additional Paid-in Capital	Additional Paid-in CapitalIPO	Accumulated Deficit
Balance, beginning of period at Dec. 31, 2018	$ 5,129		$ 15		$ 148,641		$ (143,527)
Balance, shares at Dec. 31, 2018			15,591,357
Beginning balance adjustment – impact of ASC 606	3,115						3,115
Issuance of common stock, net of issuance costs	1,604	$ 36,849	$ 1	$ 4	1,603	$ 36,845
Issuance of common stock, net of issuance costs, shares			227,628	4,297,901
Issuance of common stock upon exercise of stock options	55				55
Issuance of common stock upon exercise of stock options, shares			72,034
Exercise of warrants	23				23
Exercise of warrants, shares			155,338
Taxes paid on RSA	(1,897)				(1,897)
Employee and nonemployee stock-based compensation	5,604				5,604
Net loss	(10,723)						(10,723)
Balance, at end of period at Jun. 30, 2019	39,759		$ 20		190,874		(151,135)
Balance, shares at Jun. 30, 2019			20,344,258
Balance, beginning of period at Dec. 31, 2018	5,129		$ 15		148,641		(143,527)
Balance, shares at Dec. 31, 2018			15,591,357
Balance, at end of period at Dec. 31, 2019	25,525		$ 20		191,751		(166,246)
Balance, shares at Dec. 31, 2019			20,437,235
Balance, beginning of period at Mar. 31, 2019	4,812		$ 16		150,322		(145,536)
Balance, shares at Mar. 31, 2019			15,873,705
Issuance of common stock, net of issuance costs		$ 36,849		$ 4		$ 36,845
Issuance of common stock, net of issuance costs, shares				4,077,143
Net issuance of restricted stock award (RSA), shares			220,758
Issuance of common stock upon exercise of stock options	14				14
Issuance of common stock upon exercise of stock options, shares			17,314
Exercise of warrants	23				23
Exercise of warrants, shares			155,338
Taxes paid on RSA	(1,897)				(1,897)
Employee and nonemployee stock-based compensation	5,557				5,557
Net loss	(5,599)						(5,599)
Balance, at end of period at Jun. 30, 2019	39,759		$ 20		190,874		(151,135)
Balance, shares at Jun. 30, 2019			20,344,258
Balance, beginning of period at Dec. 31, 2019	25,525		$ 20		191,751		(166,246)
Balance, shares at Dec. 31, 2019			20,437,235
Issuance of common stock, net of issuance costs	24,992		$ 37		24,955
Issuance of common stock, net of issuance costs, shares			36,800,000
Issuance of common stock, debt repayment	6,001		$ 8		5,993
Issuance of common stock, debt repayment, shares			8,226,834
Issuance of common stock upon exercise of stock options	$ 303		$ 1		302
Issuance of common stock upon exercise of stock options, shares	363,857		363,857
Issuance of common stock upon exercise of ESPP	$ 42				42
Issuance of common stock upon exercise of ESPP, shares			64,320
Net settlement of common stock upon release of RSU	(6)				(6)
Net settlement of common stock upon release of RSU, shares			35,070
Employee and nonemployee stock-based compensation	458				458
Net loss	(17,060)						(17,060)
Balance, at end of period at Jun. 30, 2020	40,255		$ 66		223,495		(183,306)
Balance, shares at Jun. 30, 2020			65,927,316
Balance, beginning of period at Mar. 31, 2020	15,994		$ 21		192,183		(176,210)
Balance, shares at Mar. 31, 2020			20,677,360
Issuance of common stock, net of issuance costs	24,992		$ 37		24,955
Issuance of common stock, net of issuance costs, shares			36,800,000
Issuance of common stock, debt repayment	6,001		$ 8		5,993
Issuance of common stock, debt repayment, shares			8,226,834
Issuance of common stock upon exercise of stock options	93				93
Issuance of common stock upon exercise of stock options, shares			119,942
Issuance of common stock upon exercise of ESPP	42				42
Issuance of common stock upon exercise of ESPP, shares			68,110
Net settlement of common stock upon release of RSU	(6)				(6)
Net settlement of common stock upon release of RSU, shares			35,070
Employee and nonemployee stock-based compensation	235				235
Net loss	(7,096)						(7,096)
Balance, at end of period at Jun. 30, 2020	$ 40,255		$ 66		$ 223,495		$ (183,306)
Balance, shares at Jun. 30, 2020			65,927,316

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net loss	$ (17,060)	$ (10,723)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	1,647	1,798
Stock-based compensation	458	5,604
Inventory write-downs	407
Trade-in guarantee		(268)
Non-cash interest expense	166	50
Accretion of debt discount	159	60
Deferred income taxes	30	(11)
Bad debt expense	289
Changes in operating assets and liabilities:
Accounts receivable	4,814	(12,420)
Inventory	3,899	(4,664)
Prepaid expenses and other current assets	(150)	627
Other assets	138	(2,360)
Accounts payable	4,000	(9,928)
Accrued expenses	6,631	937
Deferred revenue	55	(3,649)
Income tax payable	179	163
Net cash provided by (used in) operating activities	5,662	(34,784)
Cash flows from investing activities:
Purchase of property and equipment	(193)	(247)
Development of tooling and purchased software licenses		(244)
Net cash used in investing activities	(193)	(491)
Cash flows from financing activities:
Repayment on long-term debt	(4,037)
Proceeds on line of credit		5,614
Repayment on line of credit		(5,878)
Proceeds from PPP Loan	2,289
Repayment of PPP Loan	(2,289)
Proceeds from issuance of common stock, net of costs	24,992	1,604
Proceeds from issuance of common stock upon IPO, net of costs		38,399
Taxes paid on net issuance of restricted stock award and restricted stock units	(6)	(1,897)
Proceeds from exercise of warrants		23
Proceeds from ESPP purchase of stock	43
Proceeds from exercise of stock options	303	55
Net cash provided by financing activities	21,295	37,920
Net increase in cash and cash equivalents	26,764	2,645
Cash and cash equivalents at beginning of period	11,298	13,049
Cash and cash equivalents at end of period	38,062	15,694
Supplemental disclosure of cash flow information:
Cash paid for interest	260	1,055
Cash paid for income taxes	77	352
Non-cash investing and financing activities:
Other assets included in accounts payable	110	1
IPO issuance costs included in accounts payable		$ 1,550
Settlement of long-term debt with issuance of common stock	$ 6,001

The Company and its Significant

The Company and its Significant Accounting Policies	6 Months Ended
	Jun. 30, 2020
Company And Significant Accounting Policies [Abstract]
The Company and its significant accounting policies	NOTE 1 —The Company and its significant accounting policies Description of Business —Sonim Technologies, Inc. was incorporated in the state of Delaware on August 5, 1999 and is headquartered in Austin, Texas. The Company is a leading U.S. provider of ultra-rugged mobile phones and accessories designed specifically for task workers physically engaged in their work environments, often in mission-critical roles. We currently sell our ruggedized mobility solutions to several of the largest wireless carriers in the United States— including AT&T, T-Mobile and Verizon—as well as the three largest wireless carriers in Canada—Bell, Rogers and Telus Mobility. Due to the acquisition of sprint by T-Mobile, our current generation of products sold to T-Mobile will be phased out. We are actively working to develop a new series of products for T-Mobile. Our phones and accessories connect workers with voice, data and workflow applications in two end markets: industrial enterprise and public sector. We are closely monitoring the impact of the COVID-19 global outbreak and its resulting impact on our manufacturing operations and supply chain, with our top priority being the health and safety of our employees, customers, partners, and communities. We believe our sales partners have ample inventory to continue meeting customer needs in the near term. However, demand for our solutions may be reduced as a result of the COVID-19 outbreak and resulting market uncertainty. It also remains possible that our results could be negatively impacted by interruptions in the global supply chain due to the unpredictable spread of this pandemic. The magnitude of any potential impact is unknown, as it is unclear how long it will take for the overall supply chain to return to normal. We are working closely with our partners and suppliers to manage this process. Liquidity – Our condensed consolidated financial statements account for the continuation of our business without a going concern designation due primarily to approximately $25 million in net proceeds from our public offering of common stock that closed June 2020 and redemption of approximately $10 million of note payable in June 2020. This capital raise will allow us to continue operations for at least the next twelve months. Our principal sources of liquidity as of June 30, 2020 consist of existing cash and cash equivalents totaling $38.1 million, which includes approximately $25 million in net proceeds from our June 2020 public offering of common stock. Although we remain subject to the risks and uncertainties associated with the development and release of new products, among other, we believe our operations have been streamlined to enable us to conduct business more effectively and efficiently despite near term economic uncertainty . On April 13, 2020, the Company received approximately $2.3 million in loan proceeds from the Payroll Protections Program (the “PPP”) administered by the Small Business Administrations (the “SBA”) of the United States Government. The program was established under the Coronavirus Aid, Relief and Economic Security Act (the “CARES Act”). Following further guidance from the SBA on April 23, 2020 and further deliberation by the Board of Directors, the Company repaid the PPP Loan on April 29, 2020. We may seek to raise additional capital from the sale of equity securities or the incurrence of indebtedness to allow us to continue operations. There can be no assurance that additional financing will be available to us on acceptable terms, or at all. Additionally, if we issue additional equity securities to raise funds, whether to existing investors or others, the ownership percentage of our existing stockholders would be reduced. New investors may demand rights, preferences, or privileges senior to those of existing holders of common stock. Additionally, we may be limited as to the amount of funds we can raise pursuant to SEC rules and the continued listing requirements of Nasdaq. In addition, global financial crises and economic downturns, including those caused by widespread public health crises such as the COVID-19 pandemic, may cause extreme volatility and disruptions in capital and credit markets, and may impact our ability to raise additional capital when needed on acceptable terms, if at all. If we cannot grow our revenue run-rate or raise needed funds, we might be forced to make substantial reductions in our operating expenses, which could adversely affect our ability to implement our business plan and ultimately our viability as a Company. Financial Statement Presentation— The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”) and pursuant to the rules and regulations of the SEC for interim financial information. The unaudited interim condensed consolidated financial statements, which reflect all adjustments (consisting of normal recurring items or items discussed herein) that management believes necessary to fairly state results of interim operations, should be read in conjunction with the Notes to Consolidated Financial Statements (including the Significant Accounting Policies and Recent Accounting Pronouncements) included in the Company’s audited consolidated financial statements for the year ended December 31, 2019. Results of operations for interim periods are not necessarily indicative of annual results of operations. The unaudited condensed consolidated balance sheet at December 31, 2019 was extracted from the audited annual consolidated financial statements and does not include all disclosures required by U.S. GAAP for annual financial statements. Principles of Consolidation — The accompanying condensed consolidated financial statements include the accounts of Sonim Technologies. Inc. and its wholly owned foreign subsidiaries, Sonim Technologies Spain SL, Sonim Technologies India Private Limited, Sonim Technologies (Shenzhen) Limited, Sonim Technologies (Hong Kong) Limited, Sonim Technologies (Canada), Inc and Sonim Communications India Private Limited (collectively, the “Company”). All significant intercompany transactions and balances have been eliminated in consolidation. Estimates —The preparation of condensed consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. These estimates include, but are not limited to, estimates related to revenue recognition; valuation assumptions regarding the determination of the fair value of common stock, the useful lives of our long-lived assets; product warranties; loss contingencies; and the recognition and measurement of income tax assets and liabilities, including uncertain tax positions. The Company bases its estimates on historical experience and on various other assumptions that the Company believes to be reasonable under the circumstances. Notwithstanding the foregoing, the worldwide spread of the COVID-19 pandemic is expected to result in a global slowdown of economic activity which is likely to decrease demand for a broad variety of goods and services, including from the Company’s customers, while also disrupting sales channels and marketing activities for an unknown period of time until the disease is contained. The Company expects this to have a negative impact on its ability to make estimates. These estimates may change, as new events occur and additional information is obtained, and are recognized in the condensed consolidated financial statements as soon as they become known. Actual results could differ from those estimates and any such differences may be material to the Company’s financial statements Significant accounting policies — There have been no material changes in the accounting policies from those disclosed in the audited 2019 consolidated financial statements. Revenue Recognition — The Company adopted the requirements of Accounting Standards Codification (“ASC”) 2014-09, Revenue from Contracts with Customers (Topic 606), effective January 1, 2019, using the modified retrospective method. Under the modified retrospective method, this guidance is applied to those contracts which were not completed as of January 1, 2019. Refer to New Accounting Pronouncements, Pronouncements adopted in 2019, for a discussion of the effect of the adoption of Topic 606. The Company recognizes revenue primarily from the sale of products, including our mobile phones and accessories. The Company also recognizes revenue from other contractual arrangements that may include a combination of products and Non-Recurring Engineering (“NRE”) services or from the provision of solely NRE services. Revenue recognition incorporates discounts, price protection and customer incentives. In addition to cooperative marketing and other incentive programs, the Company has arrangements with some distributors, which allow for price protection and limited rights of return, generally through stock rotation programs. Under the price protection programs, the Company gives distributors credits for the difference between the original price paid and the Company’s then current price. Under the stock rotation programs, certain distributors are able to exchange certain products based on the number of qualified purchases made during the period. The Company’s handsets typically require a technical approval process. This process entails design and configuration activities required to conform the Company’s devices to a wireless carrier customer’s specific network requirement. Each wireless carrier defines its own specific functional requirements and certification process in order for the product to be ready for manufacture. While the technical approval process does involve some level of customization, in addition to design and configuration, the Company does not charge separately and is not reimbursed for these activities to the extent that they do not involve significant customization and does not incur these costs in advance of entering into binding agreements with its wireless carrier customers. Such technical approval is obtained prior to shipment. Under Topic 606, revenue is recognized when control of promised goods or services is transferred to a customer in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To determine revenue recognition for its arrangements, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. See Note 2, Revenue Recognition, for additional information. The 2020 Offering (“PO”) —On June 9, 2020, the Company completed an underwritten public offering (“PO’) in which the Company sold 36,800,000 shares of its common stock, at a price to the public of $0.75 per share. The offer and sale of the shares in the IPO were registered under the Securities Act pursuant to a registration statement on Form S-1 (File No. 333-238869), which was declared effective by the SEC on June 4, 2020. The Company raised approximately $24,992 in net proceeds, after deducting underwriting discounts and commissions of $1,656 and offering expenses of approximately $952. Offering costs, which consist of direct incremental legal, consulting, banking and accounting fees relating to the Company’s PO, are offset against proceeds from the PO within stockholders’ equity. Initial Public Offering (“IPO”) —On May 14, 2019, the Company completed an initial public offering (“IPO’) in which the Company sold 3,571,429 shares of its common stock, at a price to the public of $11.00 per share. The offer and sale of the shares in the IPO were registered under the Securities Act pursuant to a registration statement on Form S-1 (File No. 333-230887), which was declared effective by the SEC on May 9, 2019 and our common stock began trading on The Nasdaq Stock Market LLC (“Nasdaq”) on May 10, 2019. On May 22, 2019, the Company sold an additional 505,714 shares of common stock, and our Chief Executive Officer sold 30,000 shares of common stock, at a price to the public of $11.00 per share pursuant to the exercise of the underwriters’ option to purchase additional shares. The Company raised approximately $36,849 in net proceeds, after deducting underwriting discounts and commissions of $3,139 and offering expenses paid by us of approximately $4,861 . Offering costs, which consist of direct incremental legal, consulting, banking and accounting fees relating to the Company’s IPO, are offset against proceeds from the IPO within stockholders’ equity. As of December 31, 2018, there was $63 of deferred offering costs within other non-current assets on the condensed consolidated balance sheets. During the six months ended June 30, 2019, $4,861 in deferred offering costs were incurred, and charged to additional paid in capital. $1,550 issuance cost was unpaid and charged to accounts payable/accrued expenses as of June 30, 2019. New accounting pronouncements: Pronouncements adopted in 2019: The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”), and it may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies. Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that an emerging growth company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period which means that when a standard is issued or revised and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard. This may make comparison of the Company’s consolidated financial statements with another public company, which is neither an emerging growth company nor an emerging growth company that has opted out of using the extended transition period, difficult or impossible because of the potential differences in accounting standards used. As discussed above, the Company adopted Topic 606 under the modified retrospective method effective January 1, 2019. The adoption of Topic 606 did not materially impact the Company’s timing and measurement of revenue recognition as compared to the prior Topic 605 guidance, however, resulted in a cumulative effect adjustment of $3,115, net of the associated income tax effect of $215, to reduce the opening accumulated deficit as of January 1, 2019 relating to the capitalization of certain non-recurring engineering costs that were incurred to fulfill contracts pursuant to Subtopic 340-40, Other Assets and Deferred Costs, which were previously expensed. In addition, the Company identified approximately $770 of deferred revenue as contract liabilities. The guidance permitted two methods of adoption, the full retrospective method applying the standard to each prior reporting period presented, or the modified retrospective method with a cumulative effect of initially applying the guidance recognized at the date of initial application. The standard also allows entities to apply certain practical expedients at their discretion. We adopted the standard using the modified retrospective method with a cumulative adjustment and provided additional disclosures comparing results to previous U.S. GAAP in Note 2. We applied the new revenue standards only to contracts not completed as of the date of initial application, referred to as open contracts. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) – Classification of Certain Cash Receipts and Cash Payments, Pronouncements not yet adopted: In December 2019, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12) In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820) In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842),

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2020
Revenue From Contract With Customer [Abstract]
Revenue Recognition	NOTE 2 —Revenue recognition T he following reflect the changes in account balances as a result of adoption of ASC 606: Three months ended, June 30, 2019 (unaudited) As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower) Net revenues $ 43,747 $ 43,747 $ - Cost of revenues 29,302 28,937 365 Gross profit 14,445 14,810 (365 ) Operating expenses: Research and development 7,384 8,233 (849 ) Sales and marketing 4,218 4,218 — General and administrative 7,424 7,424 — Total operating expenses 19,026 19,875 (849 ) Loss from operations (4,581 ) (5,065 ) 484 Interest expense (555 ) (555 ) — Other expense, net (6 ) (6 ) — Loss before income taxes (5,142 ) (5,626 ) 484 Income tax expense (457 ) (457 ) — Net loss $ (5,599 ) $ (6,083 ) $ 484 Net loss per share, basic and diluted $ (0.31 ) $ (0.34 ) $ 0.03 Weighted–average shares used in computing net loss per share, basic and diluted 18,120,143 18,120,143 Six months ended, June 30, 2019 (unaudited) As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower) Net revenues $ 70,231 $ 70,231 $ - Cost of revenues 46,765 46,042 723 Gross profit 23,466 24,189 (723 ) Operating expenses: Research and development 14,345 16,634 (2,289 ) Sales and marketing 7,944 7,944 — General and administrative 9,900 9,900 — Total operating expenses 32,189 34,478 (2,289 ) Loss from operations (8,723 ) (10,289 ) 1,566 Interest expense (977 ) (977 ) — Other expense, net (271 ) (271 ) — Loss before income taxes (9,971 ) (11,537 ) 1,566 Income tax expense (752 ) (752 ) — Net loss $ (10,723 ) $ (12,289 ) $ 1,566 Net loss per share, basic and diluted $ (0.63 ) $ (0.73 ) $ 0.10 Weighted–average shares used in computing net loss per share, basic and diluted 16,950,375 16,950,375 The Company recognizes revenue primarily from the sale of products, including our mobile phones and accessories, and the majority of the Company’s contracts include only one performance obligation, namely the delivery of product. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer and is defined as the unit of account for revenue recognition under ASC 606. The Company also recognizes revenue from other contracts that may include a combination of products and NRE services or from the provision of solely NRE services. Where there is a combination of products and NRE services, the Company accounts for the promises as individual performance obligations if they are concluded as distinct. Performance obligations are considered distinct if they are both capable of being distinct and distinct within the context of the contract. In determining whether performance obligations meet the criteria for being distinct, the Company considers a number of factors, such as the degree of interrelation and interdependence between obligations, and whether or not the good or service significantly modifies or transforms another good or service in the contract. During the three and six months ended June 30, 2020 and 2019, the Company did not have any contracts in which the products and NRE services were concluded to be a single performance obligation. In certain cases, the Company may offer tiered pricing based on volumes purchased for specific model phones. To date, all tiered pricing provisions have fallen into observable ranges of pricing to existing customers, thus, not resulting in any material right which could be concluded as its own performance obligation. In addition, the Company does not offer material post-contract support services to its customers. Net revenue for an individual contract is recognized at the related transaction price, which is the amount the Company expects to be entitled to in exchange for transferring the goods and/or services. The transaction price for product sales is calculated as the product selling price net of variable consideration which may include estimates for marketing development funds, sales incentives, and price protection and stock rotation rights. The Company generally does not offer a right of return to its customers. Typically, variable consideration does not need to be constrained as estimates are based on specific contract terms. However, the Company continues to assess variable consideration estimates such that it is probable that a significant reversal of revenue will not occur. The transaction price for a contract with multiple performance obligations is allocated to the separate performance obligations on a relative standalone selling price basis. Standalone selling prices for products are determined based on the prices charged to customers, which are directly observable. Standalone selling price of the professional services are mostly based on time and materials. We determine our estimates of variable consideration based on historical collection experience with similar payor classes, aged accounts receivable by payor class, terms of payment agreements, correspondence from payors related to revenue audits or reviews, our historical settlement activity of audited and reviewed claims and current economic conditions using the portfolio approach. Revenue is recognized only to the extent that it is probable that a significant reversal of the cumulative amount recognized will not occur in future periods. Revenue is then recognized for each distinct performance obligation as control is transferred to the customer. Revenue attributable to hardware is recognized at the time control of the product transfers to the customer. Revenue attributable to professional services is recognized as the Company performs the professional services to the customer. Disaggregation of revenue The following table presents our net revenue disaggregated by product category: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Smartphones $ 6,138 $ 19,457 $ 12,356 $ 33,869 Feature Phones 13,835 23,068 19,736 33,399 Accessories/Other 1,085 1,122 1,672 2,963 $ 21,058 $ 43,747 $ 33,764 $ 70,231 Shipping and handling costs The Company has elected to account for shipping and handling activities related to contracts with customers as costs to fulfill the promise to transfer the associated products. Contract costs Applying the practical expedient, the Company recognizes the incremental costs of obtaining contracts as an expense when incurred when the amortization period of the assets that otherwise would have been recognized is one year or less. These costs are included in sales and marketing and general and administrative expenses. The costs associated with design and development non-recurring engineering activities for technical approval represent costs to fulfill a contract pursuant to ASC 340-40. Accordingly, the Company capitalizes these non-recurring engineering costs and amortizes such costs over the estimated period of time over which they are expected to be recovered, which is typically, the estimated life of a particular model phone. As of December 31, 2019, the total costs to fulfill a contract which were deferred and capitalized upon adoption of ASC 606 totaled $4,525 and were recorded in Other Assets. The total capitalized costs to fulfill a contract is primarily associated with Company’s introduction of the XP8 model phone. As of June 30, 2020, the total costs to fulfill a contract were $3,707. Contract balances The Company records accounts receivable when it has an unconditional right to consideration. As of June 30, 2020, the Company does not have a contract receivable balance. Contract liabilities are recorded when cash payments are received or due in advance of performance. Contract liabilities consist of advance payments and deferred revenue, where the Company has unsatisfied performance obligations. Contract liabilities are presented as a component of deferred revenue The following table is a rollforward of contract balances as of June 30, 2020: Contractual Liability Balance at January 1, 2020 $ 291 Recognition of revenue (4 ) Addition of revenue 59 Balance at June 30, 2020 $ 346

Fair Value Measurement

Fair Value Measurement	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurement	NOTE 3 —Fair value measurement The fair value measurements standard establishes a framework for measuring fair value. That framework provides a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (level 1 measurements) and the lowest priority to unobservable inputs (level 3 measurements). The three levels of the fair value hierarchy under the standard are described Level 1—Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that the Company has the ability to access. Level 2—Inputs to the valuation methodology include: • Quoted market prices for similar assets or liabilities in active • Quoted prices for identical or similar assets or liabilities in inactive • Inputs other than quoted prices that are observable for the asset or • Inputs that are derived principally from or corroborated by observable market data by If the asset or liability has a specified (contractual) term, the level 2 input must be observable for substantially the full term of the asset or liability. Level 3—Inputs to the valuation methodology are unobservable and significant to the fair value measurement. The asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable Following is a description of the valuation methodologies used for assets and liabilities measured at fair value. There have been no changes in the methodologies used at June 30, 2020 and 2019, and December 31, 2019. Money market funds are classified within level 1 of the fair value hierarchy because they are valued using quoted market prices. Trade-in guarantee liability is classified within level 3 of the fair value hierarchy because the fair value measurement is based on inputs that are not observable in the market, including the probability and timing of a customer upgrading to a new device and the value of the upgraded device. The methods described above may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. Furthermore, while the Company believes its valuation methods are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different fair value measurement at the reporting date. The following tables sets forth by level, within the fair value hierarchy, the Company’s assets and liabilities at fair value: June 30 , 2020 Level 1 Level 2 Level 3 Total Assets: Money market funds * $ 34,400 $ — $ — $ 34,400 December 31, 2019 Level 1 Level 2 Level 3 Total Assets: Money market funds * $ 9,250 $ — $ — $ 9,250 * Included in cash and cash equivalents on the condensed consolidated balance The table below sets forth a summary of changes in the fair value of the Company’s level 3 liabilities for the six months ended June 30, 2020 and 2019: Trade-In Guarantee Balance at January 1, 2020 $ — Recognition of revenue — Balance at June 30, 2020 $ — Balance at January 1, 2019 $ 268 Recognition of revenue (268 ) Balance at June 30, 2019 $ —

Inventory

Inventory	6 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Inventory	NOTE 4 —Inventory Inventory consisted of approximately the following: June 30, 2020 December 31, 2019 Finished goods $ 8,598 $ 13,559 Work in process 403 — Raw materials 4,729 4,522 Accessories 1,495 1,450 $ 15,225 $ 19,531

Warranty Liability

Warranty Liability	6 Months Ended
	Jun. 30, 2020
Guarantees And Product Warranties [Abstract]
Warranty Liability	NOTE 5 —Warranty Liability The table below sets forth the activity in the warranty liability, which is included in accrued expenses on the condensed consolidated balance sheet, for the six months ended June 30, 2020 and 2019: Balance, January 1, 2020 $ 1,154 Additions 882 Cost of warranty claims (647 ) Balance, June 30, 2020 $ 1,389 Balance, January 1, 2019 $ 1,103 Additions 874 Cost of warranty claims (552 ) Balance, June 30, 2019 $ 1,425

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Borrowings	NOTE 6 —Borrowings Senior Credit Agreement In prior years, the Company maintained a loan and security agreement with East West Bank . No borrowings were made under this facility in 2019 and the facility was cancelled in June does not have any borrowing arrangements Long-Term Debt Riley Loan — The Company had a Subordinated Term Loan and Security agreement, as amended, (the “B. Riley Loan Agreement”) with B. Riley Principal Investments, LLC (“BRPI”), an affiliate of B. Riley Financial, Inc., a shareholder of the Company. Under the amended B. Riley Loan Agreement, the Company could borrow principal up to $12,000 via a subordinated secured convertible promissory note, with an optional conversion feature. The amended B. Riley Loan Agreement included repayment penalties if any repayment reduces the principal amount outstanding below $10,000. The prepayment penalty was 1% for 2019 through maturity. The borrowings under the B. Riley Loan Agreement, as amended would have matured on September 1, 2022 and carried a stated interest rate of 10% and provided that the first year of interest commencing on October 26, 2018 was compounded into the principal, with interest-only payments beginning thereafter. On June 1, 2020, the Company entered into a Note Amendment and Debt Cancellation Agreement with BRPI (the “Note Amendment”), which provided that, contingent upon the closing of the PO, the Company would repay $4 million of the outstanding indebtedness to BRPI in cash (the “B. Riley Repayment”) and the remaining principal amounts, accrued interest and other amounts outstanding under the B. Riley Loan Agreement, after giving effect to the B. Riley Repayment, would be redeemed for cash and shares of common stock to be issued to BRPI or its affiliates at the public offering price of shares of our common stock in the PO. Pursuant to the Note Amendment, as amended, the Company made the B. Riley Repayment on June 9, 2020 and the remaining principal amount, accrued interest and other amounts outstanding under the B. Riley Loan Agreement, after giving effect to the B. Riley Repayment, in the amount of $6,170, was redeemed into 8,226,834 shares of the Company’s common stock issued to BRPI and BRC Opportunity Fund L.P., an affiliate of BRPI, (the “Redemption Shares”). Following the B. Riley Repayment and the issuance of the Redemption Shares, the Company has no outstanding indebtedness under the B. Riley Loan Agreement. Also on June 11, 2020, the Company entered into a registration rights agreement with BRPI and BRC Partners Opportunity Fund, L.P. pursuant to which the Company agreed to file a registration statement covering the resale of the Redemption Shares and to use its best efforts to cause such registration statement to become effective upon the time frames set forth in the registration rights agreement. A As of June 30, 2020, and December 31, 2019, the total outstanding principal and interest under the B. Riley Loan Agreement, as amended, was zero and As of December 31, 2019, the Company had classified the debt as a current liability based on the occurrence of a material adverse change in our business. event of default under the B. Riley Loan Agreement, BRPI had the option, among other things, to accelerate the debt and foreclose upon the assets pledged as collateral. In addition, we were unable to borrow under the EWB facility during the continuance of an event of default thereunder or under the B. Riley Loan Agreement. Promissory Notes Payable —In 2014 and 2017, the Company entered into agreements with one of its suppliers, whereby certain of its trade payables for royalties and royalty up-front payments were converted to payment plans. In December 2018, the Company amended its accounts payable financing agreements, effective January 1, 2019, which provides for the $736 outstanding balance to be paid in twenty equal quarterly installments. The amounts due under these agreements would be paid in quarterly installments over periods from two to four years, with interest ranging up to 8%. Remaining balances are $472 and $508 at June 30, 2020 and December 31, 2019, respectively. PPP Loan--On April 13, 2020, the Company received approximately $2.3 million in loan proceeds from the Payroll Protections Program (the “PPP”) administered by the Small Business Administrations (the “SBA”) of the United States Government. The program was established under the Coronavirus Aid, Relief and Economic Security Act (the “CARES Act”). Follow additional guidance issued by the SBA on April 23, 2020 that cast doubt on the ability of public companies to qualify for loans under the PPP, the Company repaid the PPP Loan on April 29, 2020. Other Financing Arrangements —In 2017, the Company entered into three financing arrangements totaling approximately $472 with remaining maturity dates of June 2020 and August 2020. During the quarter ended September 30, 2019, the Company repaid the remaining outstanding balance. Future aggregate annual principal payment on all long-term debt, are as follows for the next 5 years as of June 30, 2020: Year Ending December 31, 2020 $ 107 2021 144 2022 144 2023 78 $ 472

Warrants

Warrants	6 Months Ended
	Jun. 30, 2020
Warrants [Abstract]
Warrants	NOTE 7 —Warrants During the six months ended June 30, 2020 and year ended December 31, 2019, there was no activity related to the Company’s warrants. The following table discloses warrants issued and outstanding as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 Exercise Number of warrant Year of Exercise Number of warrant Year of Issuance date price shares expiration price shares expiration Common November 2012 $ 6.00 7 2028 $ 6.00 7 2028 November 2012 $ 6.00 — 2020 $ 6.00 927 2020 November 2012 $ 14.50 22 2028 $ 14.50 22 2028 Total warrants 29 956

Stock-based Compensation

Stock-based Compensation	6 Months Ended
	Jun. 30, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-based Compensation	NOTE 8 —Stock-based Compensation As of June 30, 2020, the Company had the 2012 Equity Incentive Plan (the “2012 Option Plan”) and 2019 Equity Incentive Plan (the “2019 Option Plan”) in place. As of June 30, 2020, the number of shares available to be issued under the 2019 Option Plan were 356,072. In May 2020, the Company’s board of directors approved an increase in the number of shares of common stock reserved for future issuance the 2019 Option Plan by 3,000,000 shares, subject to approval by the Company’s stockholders. As of June 30, 2020, the number of shares available to be issued under the 2019 Employee Stock Purchase Plan were 408,453. The Option Plans provides for the grant of incentive and non-statutory stock options (“Options”), stock appreciation rights (“SAR”), restricted stock awards (“RSA”), and restricted stock unit awards (“RSU”) to employees, nonemployee directors, and consultants of the Company. Option awards granted under the Option Plan generally become exercisable ratably over a two-year or four-year period following the date of grant and expire ten years from the date of grant. At the discretion of the Company’s Board of Directors, certain awards may be exercisable immediately at the date of grant but are subject to a repurchase right, under which the Company may buy back any unvested shares at their original exercise price in the event of an employee’s termination prior to full vesting. All other awards are exercisable only to the extent vested. At June 30, 2020 and December 31, 2019, there were no shares that had been early exercised that were subject to the Company’s repurchase right at that date. The exercise price or strike price for Options and SARs granted under the Option Plan must generally be at least equal to 100% of the fair value of the Company’s common stock at the date of grant, as determined by the Board of Directors. The exercise price of incentive stock options granted under the Option Plan to ten percent or greater stockholders must be at least equal to 110% of the fair value of the Company’s common stock at the date of grant, as determined by the Board of Directors, and are not exercisable after five years from the date of grant. The Company’s board of directors adopted, and its stockholders approved, the 2019 Employee Stock Purchase Plan and the 2019 Equity Incentive Plan in March 2019 and April 2019, respectively, each of which became effective in connection with the IPO. There are Plan. Additionally, the number of shares of common stock reserved for issuance under the 2019 Employee Stock Purchase Plan will automatically increase on January 1 of each calendar year for 10 years, starting January 1, 2020, and ending on, and including, January 1, 2029, in an amount equal to the lesser of 1% of the total number of shares of capital stock outstanding on December 31 st On May 15, 2020, 64,320 shares of common stock were issued under the 2019 Employee Stock Purchase Plan. Stock-based compensation expense for the three and six months ended June 30, 2020 and 2019 is as follows: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Research and development $ 71 $ 172 $ 131 $ 175 Sales and marketing 49 467 106 478 General and administrative 102 4,899 198 4,931 Cost of revenues 13 19 23 20 $ 235 $ 5,557 $ 458 $ 5,604 Stock Options: Stock option activity for the six months ended June 30, 2020 is as follows: Weighted average Weighted average remaining Aggregate exercise price contractual life Intrinsic Options per share (in years) Value Outstanding at January 1, 2020 2,645,714 $ 3.50 8.51 $ 4,184 Options granted 20,000 $ 0.85 Options exercised (363,857 ) $ 0.83 Options forfeited (416,357 ) $ 4.91 Options expired (79,007 ) $ 6.32 Outstanding at June 30, 2020 1,806,493 $ 3.56 7.31 $ 108 Vested and expected to vest at June 30, 2020 1,806,493 $ 3.56 7.31 $ 108 Exercisable at June 30, 2020 700,399 $ 4.12 4.08 $ 107 As of June 30, 2020, there was approximately $3,545 of unamortized stock-based compensation cost related to unvested stock options, which is expected to be recognized over a weighted average period of three years. Restricted Stock Units: The following table summarized the outstanding RSUs as of June 30, 2020: RSUs Outstanding at January 1, 2020 249,500 Granted 2,015,500 Released (41,750 ) Forfeited (73,250 ) Outstanding at June 30, 2020 2,150,000 Vested at June 30, 2020 — As of June 30

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 9 —Income Taxes In determining quarterly provisions for income taxes, the Company uses the annual estimated effective tax rate applied to the actual year-to-date profit or loss, adjusted for discrete items arising in that quarter. The Company’s annual estimated effective tax rate differs from the U.S. federal statutory rate primarily as a result of state taxes, foreign taxes, and changes in the Company’s valuation allowance against its deferred tax assets. For the three months ended June 30, 2020 and 2019, the Company recorded provisions for income taxes of $180, and $457, respectively. For the six months ended June 30, 2020 and 2019, the Company recorded provisions for income taxes of $363, and $752, respectively. On March 27, 2020, the President signed into law the CARES Act, an economic stimulus package in response to the COVID-19 global pandemic. The CARES Act contains several corporate income tax provisions of which only the acceleration of timing of tax refunds for minimum tax credits apply to the Company. As a result of the CARES Act, the Company reclassified $68 of minimum tax credits from a non-current asset to a current asset as of March 31, 2020. On December 22, 2017, President Trump signed into law the Tax Cuts and Jobs Act (the Tax Act), which significantly changes existing U.S. tax laws, including a reduction in the corporate tax rate from 35% to 21%, a move from a worldwide tax system to a territorial system, as well as other changes. Beginning in 2018, the Company became subject to the global intangible low-taxed income (GILTI) provisions of the Tax Act on the income of the Company’s foreign subsidiary. The Company’s foreign subsidiaries are profitable during the three and six months ended June 30, 2020 and forecast profits for all of 2020. The GILTI subjects the income of the foreign subsidiaries to U.S. taxation. The Company’s accounting policy related to the GILTI is to treat GILTI related book/tax differences as period costs and to use the incremental cash tax savings approach in evaluating the Company’s U.S. net operating loss valuation allowance assessment. The Company's income tax returns are subject to examinations by the Internal Revenue Service and other tax authorities in various jurisdictions. In accordance with the guidance on the accounting for uncertainty in income taxes, the Company regularly assesses the likelihood of adverse outcomes resulting from these examinations to determine the adequacy of its provision for income taxes. These assessments can require considerable estimates and judgments. As of June 30, 2020, the gross amount of unrecognized tax benefits was approximately $7,000. If the Company's estimate of income tax liabilities proves to be less than the ultimate assessment, then a further charge to expense would be required. If events occur and the payment of these amounts ultimately proves to be unnecessary, the reversal of the liabilities would result in tax benefits being recognized in the period when the Company determines the liabilities are no longer necessary. The Company does not anticipate any material changes to its uncertain tax positions during the next twelve months. Sonim Technologies (Shenzhen) Limited was notified of a tax inquiry by the Shenzhen Tax Bureau Bao’an Branch of the State Administration of Taxation on June 18, 2020 for both the 2017 and 2019 tax years. We have met with the Shenzhen Tax Bureau Bao’an Branch of the State Administration of Taxation and are cooperating with the audit. The Company has been recording an uncertain tax position long-term tax lability plus interest for such a potential claim by Shenzhen Bao’an Branch of the State Administration of Taxation and, as such, will not record an adjustment to the uncertain tax position liability related to this inquiry as of June 30, 2020.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2020
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	NOTE 10 —Commitments and Contingencies Royalty payments —The Company is required to pay per unit royalties to wireless essential patent holders and other providers of integrated technologies on mobile devices delivered, which, in aggregate, amount to less than 5% of net revenues associated with each unit and expire in 2021 and 2023. Royalty expense for the three months ended June 30, 2020 and 2019 was $843 and $1,247, respectively. Royalty expense for the six months ended June 30, 2020 and 2019 was $1,194 and $1,698, respectively, which are included in cost of revenues on the condensed consolidated statements of operations. Securities litigation — On September 20, 2019, a purported Sonim stockholder who allegedly purchased stock registered in Sonim’s initial public offering (“IPO”) filed a putative class action complaint in the Superior Court of the State of California, County of San Mateo, captioned Pearson v. Sonim Technologies, Inc., et al., Case No. 19CIV05564, on behalf of himself and others who purchased shares of Sonim registered in the IPO (the “Pearson Action”). On October 4 and 16, 2019, two additional purported class action complaints substantially similar to the Pearson Action were filed on behalf of different plaintiffs yet the same putative class of Sonim stockholders, in the same court as the Pearson Action. On October 7, 2019, a substantially similar putative class action lawsuit was filed in the United States District Court for the Northern District of California. All four complaints allege violations of the Securities Act of 1933 by Sonim and certain of its current and former officers and directors for, among other things, alleged false or misleading statements and omissions in the registration statement issued in connection with the IPO, relating primarily to an alleged failure to disclose software defects in Sonim’s phones and alleged misstatements about performance characteristics of Sonim’s phones. the Company recorded a $2,000 accrual on June 30, 2020 in general administration expense. Securities and Exchange Commission Formal Order of Private Investigation: In March 2020, we received a voluntary document request from the Securities and Exchange Commission’s (“SEC”) San Francisco Regional office, and in August 2020, the Company was informed that the SEC Staff was conducting a formal investigation. The SEC’s investigation is ongoing. The Company has been cooperating with the SEC in the matter. The Company is unable to predict the likely outcome of the investigation or determine its potential impact, if any, on the Company. General litigation — The Company is involved in various other legal proceedings arising in the normal course of business. The Company does not believe that the ultimate resolution of these other matters will have a material adverse effect on its condensed consolidated financial position, results of operations, or cash flows. The results of any future litigation cannot be predicted with certainty and, regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management time and resources and other factors . Indemnification —Under the terms of its agreements with wireless carriers and other partners, the Company has agreed to provide indemnification for intellectual property infringement claims related to Company’s product sold by them to their end customers. From time to time, the Company receives notices from these wireless carriers and other partners of a claim for infringement of intellectual property rights potentially related to their products. These infringement claims have been settled, dismissed, have not been further pursued by the customers, or are pending for further action by the Company. Contingent severance obligations —The Company has agreements in place with certain key employees (Executive Severance Arrangement) guaranteeing severance payments under certain circumstances. Generally, in the event of termination by the Company without cause, termination due to death or disability, or resignation for good reason, the Company is obligated to the pay the employees: (i) any time before a Change in Control, amounts up to $1,754 or (ii) if at any time within 12 months of a Change in Control, amounts up to $2,345. As of June 30, 2020, and December 31, 2019, no accrual has been recorded. On December 11, 2019, the Board of Directors of Sonim Technologies, Inc. (the “Company”) approved the Sonim Technologies Inc. Transaction Bonus Plan (the “Plan”) that is intended to incentivize Company employees who are in a position to significantly impact the value received by the Company’s stockholders in a change of control transaction. Pursuant to the Plan, upon consummation of a change of control transaction, 10% of the consideration payable to Company stockholders, after deducting transaction expenses, will be distributed to Plan participants, including the Company’s named executive officers. The Plan has a three-year term and may be extended by the administrator of the Plan. Subject to the terms of the Plan, participants must be continuously providing services to the Company through the date of the closing of a change in control transaction to be eligible to receive a bonus thereunder, and payment is contingent upon delivery and non-revocation of a general release of claims. In connection with the adoption of the Plan, the Company’s Board of Directors allocated a 50% interest in the Plan to Tom Wilkinson, the Company’s Chief Executive Officer, and a 10% interest in the Plan to Robert Tirva, the Company’s Chief Financial Officer and 25% to 6 other key employees and consultants .

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2020
Related Party Transactions [Abstract]
Related Party Transactions	NOTE 11—Related Party Transactions Management Services Agreement— In October 2017, the Company entered into a management services agreement with B. Riley Principal Investments, an investor, pursuant to which B. Riley Investments agreed to provide advisory and consulting services to the Company. The Company incurred approximately $53 in related consulting fees for the six months ended June 30, 2019. At the closing of the Company’s IPO in May 2019, the management services agreement was terminated in accordance with its terms.

Net Loss Per Share Attributable

Net Loss Per Share Attributable to Common Stockholders	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Net Loss Per Share Attributable to Common Stockholders	NOTE 12 — The following table sets forth the computation of the Company’s basic and diluted net loss per share attributable to common stockholders for the three and six months ended: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Numerator: Net loss allocable to common stockholders $ (7,096 ) $ (5,599 ) $ (17,060 ) $ (10,723 ) Denominator: Weighted-average shares used in computing net loss per share, basic and diluted 31,638,250 18,120,143 26,126,037 16,950,375 Net loss per share, basic and diluted $ (0.22 ) $ (0.31 ) $ (0.65 ) $ (0.63 ) The dilutive common shares that were excluded from the calculation of diluted net loss per share because their effect would have been antidilutive for the three and six months ended June 30, 2020 and 2019, are presented are as follows: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Shares subject to options to purchase common stock 1,806,493 1,819,292 1,806,493 1,819,292 Unvested restricted stock units 2,150,000 128,000 2,150,000 128,000 Shares subject to warrants to purchase common stock 29 956 29 956 Shares subject to term debt optional conversion into common stock — 1,099,278 — 1,099,278 Total 3,956,522 3,047,526 3,956,522 3,047,526

Entity Level Information

Entity Level Information	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Entity Level Information	NOTE 13 —Entity Level Information Segment Information —The Company operates in one reporting segment. Operating segments are defined as components of an enterprise about which separate financial information is evaluated regularly by the chief operating decision maker, who is the chief executive officer, in deciding how to allocate resources and assessing performance. The Company’s chief operating decision maker allocates resources and assesses performance based upon discrete financial information at the consolidated level. The following table summarizes the revenue by region based on ship-to destinations for the three and six months ended June 30, 2020 and 2019: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 U.S $ 17,478 $ 35,125 $ 25,696 $ 55,232 Canada and Latin America 2,579 5,662 6,658 9,290 Europe and Middle East 446 2,210 794 4,010 Asia Pacific 555 750 616 1,699 Total revenues $ 21,058 $ 43,747 $ 33,764 $ 70,231 Long-lived assets located in the United States and Asia Pacific region were $5,394 and $1,161 and $6,626 and $1,492 as of June 30, 2020 and December 31, 2019, respectively. The composition of revenues for the three months ended June 30, 2020 and 2019 is follows: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Product Sales $ 21,042 $ 43,609 $ 33,737 $ 69,941 Services 16 138 27 290 Total revenues $ 21,058 $ 43,747 $ 33,764 $ 70,231 Concentrations of Credit Risk— The Company’s product revenues are concentrated in the technology industry, which is highly competitive and rapidly changing. Significant technological changes in the industry or customer requirements, or the emergence of competitive products with new capabilities or technologies, could adversely affect the Company’s consolidated operating results. Financial instruments that potentially subject the Company to credit risk consist primarily of cash and cash equivalents and accounts receivable. Cash and cash equivalents are deposited with high-quality, federally insured commercial banks in the United States and cash balances are in excess of federal insurance limits at June 30, 2020 and December 31, 2019. The Company generally does not require collateral or other security in support of accounts receivable. To reduce credit risk, management performs ongoing credit evaluations of its customers’ financial condition. The Company analyzes the need for reserves for potential credit losses and records allowances for doubtful accounts when necessary. The Company had allowances for such losses totaling approximately $52 at both June 30, 2020 and December 31, 2019. Receivables from two customers approximated 43% and 12% of total accounts receivable at June 30, 2020 and two customers approximated 40%, and 28% of total accounts receivable at December 31, 2019. Revenue from customers with concentration greater than 10% in the three and six months ended June 30, 2020 and 2019 accounted for approximately the following percentage of total revenues: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Customer A * 32% * 34% Customer B 58% * 46% * Customer C * 25% * 20% Customer D * * 12% * Customer E * 10% * * * Customer revenue did not exceed 10% in the respective

Restructuring Costs

Restructuring Costs	6 Months Ended
	Jun. 30, 2020
Restructuring And Related Activities [Abstract]
Restructuring Costs	NOTE 14 —Restructuring Costs Since November 2019, we have reduced our global headcount from approximately 700 employees at year-end 2018 to approximately 500 employees and contractors as of December 31, 2019. We executed an additional reduction in force of approximately 10% of our U.S. employees in February 2020, as well as in certain of our non-U.S. locations. Our total head count as of June 30, 2020 was 341 worldwide. We have also relocated our headquarters from San Mateo, California to Austin, Texas, a lower cost location. The table below sets forth the activity in the restructuring costs, which is included in accrued expenses on the condensed consolidated balance sheet, as of June 30, 2020: Balance, January 1, 2020 $ 511 Additions: expensed costs 1,204 Expenses paid out (1,535 ) Balance, June 30, 2020 $ 180 Total restructuring costs of approximately $1,204 were broken out between operating expenses of $1,104 and cost of revenues of $100 for the six months ended June 30, 2020.

Covid-19 Uncertainty

Covid-19 Uncertainty	6 Months Ended
	Jun. 30, 2020
Extraordinary And Unusual Items [Abstract]
Covid-19 Uncertainty	NOTE 15—Covid-19 Uncertainty The Company is closely monitoring the impact of the COVID-19 global outbreak and its resulting impact on our manufacturing operations and supply chain, with our top priority being the health and safety of our employees, customers, partners, and communities. The Company believes our sales partners have ample inventory to continue meeting customer needs in the near term. However, demand for our solutions may be reduced as a result of the COVID-19 outbreak and resulting market uncertainty. It also remains possible that our results could be negatively impacted by interruptions in the global supply chain due to the unpredictable spread of this pandemic. The magnitude of any potential impact is unknown, as it is unclear how long it will take for the overall supply chain to return to normal. We are working closely with our partners and suppliers to manage this process. . .

The Company and its Significa_2

The Company and its Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2020
Company And Significant Accounting Policies [Abstract]
Description of Business	Description of Business —Sonim Technologies, Inc. was incorporated in the state of Delaware on August 5, 1999 and is headquartered in Austin, Texas. The Company is a leading U.S. provider of ultra-rugged mobile phones and accessories designed specifically for task workers physically engaged in their work environments, often in mission-critical roles. We currently sell our ruggedized mobility solutions to several of the largest wireless carriers in the United States— including AT&T, T-Mobile and Verizon—as well as the three largest wireless carriers in Canada—Bell, Rogers and Telus Mobility. Due to the acquisition of sprint by T-Mobile, our current generation of products sold to T-Mobile will be phased out. We are actively working to develop a new series of products for T-Mobile. Our phones and accessories connect workers with voice, data and workflow applications in two end markets: industrial enterprise and public sector. We are closely monitoring the impact of the COVID-19 global outbreak and its resulting impact on our manufacturing operations and supply chain, with our top priority being the health and safety of our employees, customers, partners, and communities. We believe our sales partners have ample inventory to continue meeting customer needs in the near term. However, demand for our solutions may be reduced as a result of the COVID-19 outbreak and resulting market uncertainty. It also remains possible that our results could be negatively impacted by interruptions in the global supply chain due to the unpredictable spread of this pandemic. The magnitude of any potential impact is unknown, as it is unclear how long it will take for the overall supply chain to return to normal. We are working closely with our partners and suppliers to manage this process.
Liquidity	Liquidity – Our condensed consolidated financial statements account for the continuation of our business without a going concern designation due primarily to approximately $25 million in net proceeds from our public offering of common stock that closed June 2020 and redemption of approximately $10 million of note payable in June 2020. This capital raise will allow us to continue operations for at least the next twelve months. Our principal sources of liquidity as of June 30, 2020 consist of existing cash and cash equivalents totaling $38.1 million, which includes approximately $25 million in net proceeds from our June 2020 public offering of common stock. Although we remain subject to the risks and uncertainties associated with the development and release of new products, among other, we believe our operations have been streamlined to enable us to conduct business more effectively and efficiently despite near term economic uncertainty . On April 13, 2020, the Company received approximately $2.3 million in loan proceeds from the Payroll Protections Program (the “PPP”) administered by the Small Business Administrations (the “SBA”) of the United States Government. The program was established under the Coronavirus Aid, Relief and Economic Security Act (the “CARES Act”). Following further guidance from the SBA on April 23, 2020 and further deliberation by the Board of Directors, the Company repaid the PPP Loan on April 29, 2020. We may seek to raise additional capital from the sale of equity securities or the incurrence of indebtedness to allow us to continue operations. There can be no assurance that additional financing will be available to us on acceptable terms, or at all. Additionally, if we issue additional equity securities to raise funds, whether to existing investors or others, the ownership percentage of our existing stockholders would be reduced. New investors may demand rights, preferences, or privileges senior to those of existing holders of common stock. Additionally, we may be limited as to the amount of funds we can raise pursuant to SEC rules and the continued listing requirements of Nasdaq. In addition, global financial crises and economic downturns, including those caused by widespread public health crises such as the COVID-19 pandemic, may cause extreme volatility and disruptions in capital and credit markets, and may impact our ability to raise additional capital when needed on acceptable terms, if at all. If we cannot grow our revenue run-rate or raise needed funds, we might be forced to make substantial reductions in our operating expenses, which could adversely affect our ability to implement our business plan and ultimately our viability as a Company.
Financial Statement Presentation	Financial Statement Presentation— The accompanying unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the U.S. (“U.S. GAAP”) and pursuant to the rules and regulations of the SEC for interim financial information. The unaudited interim condensed consolidated financial statements, which reflect all adjustments (consisting of normal recurring items or items discussed herein) that management believes necessary to fairly state results of interim operations, should be read in conjunction with the Notes to Consolidated Financial Statements (including the Significant Accounting Policies and Recent Accounting Pronouncements) included in the Company’s audited consolidated financial statements for the year ended December 31, 2019. Results of operations for interim periods are not necessarily indicative of annual results of operations. The unaudited condensed consolidated balance sheet at December 31, 2019 was extracted from the audited annual consolidated financial statements and does not include all disclosures required by U.S. GAAP for annual financial statements.
Principles of Consolidation	Principles of Consolidation — The accompanying condensed consolidated financial statements include the accounts of Sonim Technologies. Inc. and its wholly owned foreign subsidiaries, Sonim Technologies Spain SL, Sonim Technologies India Private Limited, Sonim Technologies (Shenzhen) Limited, Sonim Technologies (Hong Kong) Limited, Sonim Technologies (Canada), Inc and Sonim Communications India Private Limited (collectively, the “Company”). All significant intercompany transactions and balances have been eliminated in consolidation.
Estimates	Estimates —The preparation of condensed consolidated financial statements in accordance with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. These estimates include, but are not limited to, estimates related to revenue recognition; valuation assumptions regarding the determination of the fair value of common stock, the useful lives of our long-lived assets; product warranties; loss contingencies; and the recognition and measurement of income tax assets and liabilities, including uncertain tax positions. The Company bases its estimates on historical experience and on various other assumptions that the Company believes to be reasonable under the circumstances. Notwithstanding the foregoing, the worldwide spread of the COVID-19 pandemic is expected to result in a global slowdown of economic activity which is likely to decrease demand for a broad variety of goods and services, including from the Company’s customers, while also disrupting sales channels and marketing activities for an unknown period of time until the disease is contained. The Company expects this to have a negative impact on its ability to make estimates. These estimates may change, as new events occur and additional information is obtained, and are recognized in the condensed consolidated financial statements as soon as they become known. Actual results could differ from those estimates and any such differences may be material to the Company’s financial statements
Significant accounting policies	Significant accounting policies — There have been no material changes in the accounting policies from those disclosed in the audited 2019 consolidated financial statements.
Revenue Recognition	Revenue Recognition — The Company adopted the requirements of Accounting Standards Codification (“ASC”) 2014-09, Revenue from Contracts with Customers (Topic 606), effective January 1, 2019, using the modified retrospective method. Under the modified retrospective method, this guidance is applied to those contracts which were not completed as of January 1, 2019. Refer to New Accounting Pronouncements, Pronouncements adopted in 2019, for a discussion of the effect of the adoption of Topic 606. The Company recognizes revenue primarily from the sale of products, including our mobile phones and accessories. The Company also recognizes revenue from other contractual arrangements that may include a combination of products and Non-Recurring Engineering (“NRE”) services or from the provision of solely NRE services. Revenue recognition incorporates discounts, price protection and customer incentives. In addition to cooperative marketing and other incentive programs, the Company has arrangements with some distributors, which allow for price protection and limited rights of return, generally through stock rotation programs. Under the price protection programs, the Company gives distributors credits for the difference between the original price paid and the Company’s then current price. Under the stock rotation programs, certain distributors are able to exchange certain products based on the number of qualified purchases made during the period. The Company’s handsets typically require a technical approval process. This process entails design and configuration activities required to conform the Company’s devices to a wireless carrier customer’s specific network requirement. Each wireless carrier defines its own specific functional requirements and certification process in order for the product to be ready for manufacture. While the technical approval process does involve some level of customization, in addition to design and configuration, the Company does not charge separately and is not reimbursed for these activities to the extent that they do not involve significant customization and does not incur these costs in advance of entering into binding agreements with its wireless carrier customers. Such technical approval is obtained prior to shipment. Under Topic 606, revenue is recognized when control of promised goods or services is transferred to a customer in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To determine revenue recognition for its arrangements, the Company performs the following five steps: (i) identify the contract(s) with a customer; (ii) identify the performance obligations in the contract; (iii) determine the transaction price; (iv) allocate the transaction price to the performance obligations in the contract; and (v) recognize revenue when (or as) the entity satisfies a performance obligation. See Note 2, Revenue Recognition, for additional information. The 2020 Offering (“PO”) —On June 9, 2020, the Company completed an underwritten public offering (“PO’) in which the Company sold 36,800,000 shares of its common stock, at a price to the public of $0.75 per share. The offer and sale of the shares in the IPO were registered under the Securities Act pursuant to a registration statement on Form S-1 (File No. 333-238869), which was declared effective by the SEC on June 4, 2020. The Company raised approximately $24,992 in net proceeds, after deducting underwriting discounts and commissions of $1,656 and offering expenses of approximately $952. Offering costs, which consist of direct incremental legal, consulting, banking and accounting fees relating to the Company’s PO, are offset against proceeds from the PO within stockholders’ equity. Initial Public Offering (“IPO”) —On May 14, 2019, the Company completed an initial public offering (“IPO’) in which the Company sold 3,571,429 shares of its common stock, at a price to the public of $11.00 per share. The offer and sale of the shares in the IPO were registered under the Securities Act pursuant to a registration statement on Form S-1 (File No. 333-230887), which was declared effective by the SEC on May 9, 2019 and our common stock began trading on The Nasdaq Stock Market LLC (“Nasdaq”) on May 10, 2019. On May 22, 2019, the Company sold an additional 505,714 shares of common stock, and our Chief Executive Officer sold 30,000 shares of common stock, at a price to the public of $11.00 per share pursuant to the exercise of the underwriters’ option to purchase additional shares. The Company raised approximately $36,849 in net proceeds, after deducting underwriting discounts and commissions of $3,139 and offering expenses paid by us of approximately $4,861 . Offering costs, which consist of direct incremental legal, consulting, banking and accounting fees relating to the Company’s IPO, are offset against proceeds from the IPO within stockholders’ equity. As of December 31, 2018, there was $63 of deferred offering costs within other non-current assets on the condensed consolidated balance sheets. During the six months ended June 30, 2019, $4,861 in deferred offering costs were incurred, and charged to additional paid in capital. $1,550 issuance cost was unpaid and charged to accounts payable/accrued expenses as of June 30, 2019.
New accounting pronouncements	New accounting pronouncements: Pronouncements adopted in 2019: The Company is an “emerging growth company,” as defined in Section 2(a) of the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012 (the “JOBS Act”), and it may take advantage of certain exemptions from various reporting requirements that are applicable to other public companies that are not emerging growth companies. Section 102(b)(1) of the JOBS Act exempts emerging growth companies from being required to comply with new or revised financial accounting standards until private companies (that is, those that have not had a Securities Act registration statement declared effective or do not have a class of securities registered under the Exchange Act) are required to comply with the new or revised financial accounting standards. The JOBS Act provides that an emerging growth company can elect to opt out of the extended transition period and comply with the requirements that apply to non-emerging growth companies but any such election to opt out is irrevocable. The Company has elected not to opt out of such extended transition period which means that when a standard is issued or revised and it has different application dates for public or private companies, the Company, as an emerging growth company, can adopt the new or revised standard at the time private companies adopt the new or revised standard. This may make comparison of the Company’s consolidated financial statements with another public company, which is neither an emerging growth company nor an emerging growth company that has opted out of using the extended transition period, difficult or impossible because of the potential differences in accounting standards used. As discussed above, the Company adopted Topic 606 under the modified retrospective method effective January 1, 2019. The adoption of Topic 606 did not materially impact the Company’s timing and measurement of revenue recognition as compared to the prior Topic 605 guidance, however, resulted in a cumulative effect adjustment of $3,115, net of the associated income tax effect of $215, to reduce the opening accumulated deficit as of January 1, 2019 relating to the capitalization of certain non-recurring engineering costs that were incurred to fulfill contracts pursuant to Subtopic 340-40, Other Assets and Deferred Costs, which were previously expensed. In addition, the Company identified approximately $770 of deferred revenue as contract liabilities. The guidance permitted two methods of adoption, the full retrospective method applying the standard to each prior reporting period presented, or the modified retrospective method with a cumulative effect of initially applying the guidance recognized at the date of initial application. The standard also allows entities to apply certain practical expedients at their discretion. We adopted the standard using the modified retrospective method with a cumulative adjustment and provided additional disclosures comparing results to previous U.S. GAAP in Note 2. We applied the new revenue standards only to contracts not completed as of the date of initial application, referred to as open contracts. In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230) – Classification of Certain Cash Receipts and Cash Payments, Pronouncements not yet adopted: In December 2019, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (ASU 2019-12) In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820) In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842),

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2020
Revenue From Contract With Customer [Abstract]
Schedule of Changes in Account Balances as a Result to Adoption of ASC 606	T he following reflect the changes in account balances as a result of adoption of ASC 606: Three months ended, June 30, 2019 (unaudited) As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower) Net revenues $ 43,747 $ 43,747 $ - Cost of revenues 29,302 28,937 365 Gross profit 14,445 14,810 (365 ) Operating expenses: Research and development 7,384 8,233 (849 ) Sales and marketing 4,218 4,218 — General and administrative 7,424 7,424 — Total operating expenses 19,026 19,875 (849 ) Loss from operations (4,581 ) (5,065 ) 484 Interest expense (555 ) (555 ) — Other expense, net (6 ) (6 ) — Loss before income taxes (5,142 ) (5,626 ) 484 Income tax expense (457 ) (457 ) — Net loss $ (5,599 ) $ (6,083 ) $ 484 Net loss per share, basic and diluted $ (0.31 ) $ (0.34 ) $ 0.03 Weighted–average shares used in computing net loss per share, basic and diluted 18,120,143 18,120,143 Six months ended, June 30, 2019 (unaudited) As Reported Balances Without Adoption of Topic 606 Effect of Change Higher/(Lower) Net revenues $ 70,231 $ 70,231 $ - Cost of revenues 46,765 46,042 723 Gross profit 23,466 24,189 (723 ) Operating expenses: Research and development 14,345 16,634 (2,289 ) Sales and marketing 7,944 7,944 — General and administrative 9,900 9,900 — Total operating expenses 32,189 34,478 (2,289 ) Loss from operations (8,723 ) (10,289 ) 1,566 Interest expense (977 ) (977 ) — Other expense, net (271 ) (271 ) — Loss before income taxes (9,971 ) (11,537 ) 1,566 Income tax expense (752 ) (752 ) — Net loss $ (10,723 ) $ (12,289 ) $ 1,566 Net loss per share, basic and diluted $ (0.63 ) $ (0.73 ) $ 0.10 Weighted–average shares used in computing net loss per share, basic and diluted 16,950,375 16,950,375
Summary of Revenue From Customers	The following table presents our net revenue disaggregated by product category: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Smartphones $ 6,138 $ 19,457 $ 12,356 $ 33,869 Feature Phones 13,835 23,068 19,736 33,399 Accessories/Other 1,085 1,122 1,672 2,963 $ 21,058 $ 43,747 $ 33,764 $ 70,231
Summary of Contract Balances	The following table is a rollforward of contract balances as of June 30, 2020: Contractual Liability Balance at January 1, 2020 $ 291 Recognition of revenue (4 ) Addition of revenue 59 Balance at June 30, 2020 $ 346

Fair Value Measurement (Tables)

Fair Value Measurement (Tables)	6 Months Ended
	Jun. 30, 2020
Fair Value Disclosures [Abstract]
Summary of Fair Value Assets and Liabilities	The following tables sets forth by level, within the fair value hierarchy, the Company’s assets and liabilities at fair value: June 30 , 2020 Level 1 Level 2 Level 3 Total Assets: Money market funds * $ 34,400 $ — $ — $ 34,400 December 31, 2019 Level 1 Level 2 Level 3 Total Assets: Money market funds * $ 9,250 $ — $ — $ 9,250 * Included in cash and cash equivalents on the condensed consolidated balance
Summary of Changes in Fair Value of Company's Level 3 Financial Liabilities	The table below sets forth a summary of changes in the fair value of the Company’s level 3 liabilities for the six months ended June 30, 2020 and 2019: Trade-In Guarantee Balance at January 1, 2020 $ — Recognition of revenue — Balance at June 30, 2020 $ — Balance at January 1, 2019 $ 268 Recognition of revenue (268 ) Balance at June 30, 2019 $ —

Inventory (Tables)

Inventory (Tables)	6 Months Ended
	Jun. 30, 2020
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventory consisted of approximately the following: June 30, 2020 December 31, 2019 Finished goods $ 8,598 $ 13,559 Work in process 403 — Raw materials 4,729 4,522 Accessories 1,495 1,450 $ 15,225 $ 19,531

Warranty Liability (Tables)

Warranty Liability (Tables)	6 Months Ended
	Jun. 30, 2020
Guarantees And Product Warranties [Abstract]
Schedule of Warranty Liability Included in Accrued Expenses on Condensed Consolidated Balance Sheet	The table below sets forth the activity in the warranty liability, which is included in accrued expenses on the condensed consolidated balance sheet, for the six months ended June 30, 2020 and 2019: Balance, January 1, 2020 $ 1,154 Additions 882 Cost of warranty claims (647 ) Balance, June 30, 2020 $ 1,389 Balance, January 1, 2019 $ 1,103 Additions 874 Cost of warranty claims (552 ) Balance, June 30, 2019 $ 1,425

Borrowings (Tables)

Borrowings (Tables)	6 Months Ended
	Jun. 30, 2020
Debt Disclosure [Abstract]
Schedule of Future Aggregate Annual Principal Payment on All Long-Term Debt	Future aggregate annual principal payment on all long-term debt, are as follows for the next 5 years as of June 30, 2020: Year Ending December 31, 2020 $ 107 2021 144 2022 144 2023 78 $ 472

Warrants (Tables)

Warrants (Tables)	6 Months Ended
	Jun. 30, 2020
Equity [Abstract]
Schedule of Warrants Issued and Outstanding	The following table discloses warrants issued and outstanding as of June 30, 2020 and December 31, 2019: June 30, 2020 December 31, 2019 Exercise Number of warrant Year of Exercise Number of warrant Year of Issuance date price shares expiration price shares expiration Common November 2012 $ 6.00 7 2028 $ 6.00 7 2028 November 2012 $ 6.00 — 2020 $ 6.00 927 2020 November 2012 $ 14.50 22 2028 $ 14.50 22 2028 Total warrants 29 956

Stock-based Compensation (Table

Stock-based Compensation (Tables)	6 Months Ended
	Jun. 30, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Schedule of Stock-based Compensation Expense	Stock-based compensation expense for the three and six months ended June 30, 2020 and 2019 is as follows: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Research and development $ 71 $ 172 $ 131 $ 175 Sales and marketing 49 467 106 478 General and administrative 102 4,899 198 4,931 Cost of revenues 13 19 23 20 $ 235 $ 5,557 $ 458 $ 5,604
Summary of Stock Option Activity	Stock option activity for the six months ended June 30, 2020 is as follows: Weighted average Weighted average remaining Aggregate exercise price contractual life Intrinsic Options per share (in years) Value Outstanding at January 1, 2020 2,645,714 $ 3.50 8.51 $ 4,184 Options granted 20,000 $ 0.85 Options exercised (363,857 ) $ 0.83 Options forfeited (416,357 ) $ 4.91 Options expired (79,007 ) $ 6.32 Outstanding at June 30, 2020 1,806,493 $ 3.56 7.31 $ 108 Vested and expected to vest at June 30, 2020 1,806,493 $ 3.56 7.31 $ 108 Exercisable at June 30, 2020 700,399 $ 4.12 4.08 $ 107
Summary of Outstanding RSUs	The following table summarized the outstanding RSUs as of June 30, 2020: RSUs Outstanding at January 1, 2020 249,500 Granted 2,015,500 Released (41,750 ) Forfeited (73,250 ) Outstanding at June 30, 2020 2,150,000 Vested at June 30, 2020 —

Net Loss Per Share Attributab_2

Net Loss Per Share Attributable to Common Stockholders (Tables)	6 Months Ended
	Jun. 30, 2020
Earnings Per Share [Abstract]
Schedule of Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders	The following table sets forth the computation of the Company’s basic and diluted net loss per share attributable to common stockholders for the three and six months ended: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Numerator: Net loss allocable to common stockholders $ (7,096 ) $ (5,599 ) $ (17,060 ) $ (10,723 ) Denominator: Weighted-average shares used in computing net loss per share, basic and diluted 31,638,250 18,120,143 26,126,037 16,950,375 Net loss per share, basic and diluted $ (0.22 ) $ (0.31 ) $ (0.65 ) $ (0.63 )
Summary of Dilutive Common Shares were Excluded from Calculation of Diluted Net Loss Per Share	The dilutive common shares that were excluded from the calculation of diluted net loss per share because their effect would have been antidilutive for the three and six months ended June 30, 2020 and 2019, are presented are as follows: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Shares subject to options to purchase common stock 1,806,493 1,819,292 1,806,493 1,819,292 Unvested restricted stock units 2,150,000 128,000 2,150,000 128,000 Shares subject to warrants to purchase common stock 29 956 29 956 Shares subject to term debt optional conversion into common stock — 1,099,278 — 1,099,278 Total 3,956,522 3,047,526 3,956,522 3,047,526

Entity Level Information (Table

Entity Level Information (Tables)	6 Months Ended
	Jun. 30, 2020
Segment Reporting [Abstract]
Summary of Revenue by Region	The following table summarizes the revenue by region based on ship-to destinations for the three and six months ended June 30, 2020 and 2019: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 U.S $ 17,478 $ 35,125 $ 25,696 $ 55,232 Canada and Latin America 2,579 5,662 6,658 9,290 Europe and Middle East 446 2,210 794 4,010 Asia Pacific 555 750 616 1,699 Total revenues $ 21,058 $ 43,747 $ 33,764 $ 70,231
Composition of Revenues	The composition of revenues for the three months ended June 30, 2020 and 2019 is follows: Three Months Ended Six Months Ended June 30 June 30 2020 2019 2020 2019 Product Sales $ 21,042 $ 43,609 $ 33,737 $ 69,941 Services 16 138 27 290 Total revenues $ 21,058 $ 43,747 $ 33,764 $ 70,231
Percentage of Total Revenues	Revenue from customers with concentration greater than 10% in the three and six months ended June 30, 2020 and 2019 accounted for approximately the following percentage of total revenues: Three Months Ended June 30, Six Months Ended June 30, 2020 2019 2020 2019 Customer A * 32% * 34% Customer B 58% * 46% * Customer C * 25% * 20% Customer D * * 12% * Customer E * 10% * * * Customer revenue did not exceed 10% in the respective

Restructuring Costs (Tables)

Restructuring Costs (Tables)	6 Months Ended
	Jun. 30, 2020
Restructuring And Related Activities [Abstract]
Summary of Restructuring Costs	The table below sets forth the activity in the restructuring costs, which is included in accrued expenses on the condensed consolidated balance sheet, as of June 30, 2020: Balance, January 1, 2020 $ 511 Additions: expensed costs 1,204 Expenses paid out (1,535 ) Balance, June 30, 2020 $ 180

The Company and its Significa_3

The Company and its Significant Accounting Policies - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 09, 2020	Apr. 13, 2020	May 22, 2019	May 14, 2019	Jan. 01, 2019	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Company And Significant Accounting Policies [Line Items]
Entity incorporation date								Aug. 5, 1999
Proceeds from issuance of public offering									$ 38,399
Cash and cash equivalents						$ 38,062		$ 38,062		$ 11,298
Proceeds from PPP Loan								2,289
IPO closing date									May 14, 2019
Unpaid issuance costs and charged to accounts payable or accrued expenses							$ 1,550		$ 1,550
Accumulated deficit						(183,306)		(183,306)		(166,246)
Deferred revenue as contract liabilities						$ 346		$ 346		$ 291
Topic 606 | Revision of Prior Period, Adjustment
Company And Significant Accounting Policies [Line Items]
Accumulated deficit					$ 3,115
Cumulative effect adjustment associated tax effect to reduce accumulated deficit					215
Deferred revenue as contract liabilities					$ 770
2020 Offering
Company And Significant Accounting Policies [Line Items]
IPO closing date								Jun. 9, 2020
Cares Act
Company And Significant Accounting Policies [Line Items]
Proceeds from PPP Loan		$ 2,300
Common Stock
Company And Significant Accounting Policies [Line Items]
Proceeds from issuance of public offering								$ 25,000
Redemption of common stock								$ 10,000
Issuance of common stock, net of issuance costs, shares						36,800,000		36,800,000	227,628
Deferred offering costs							$ 4,861		$ 4,861
Common Stock | 2020 Offering
Company And Significant Accounting Policies [Line Items]
Proceeds from issuance of public offering	$ 24,992
Issuance of common stock, net of issuance costs, shares	36,800,000
Shares issued and sold, price per share	$ 0.75
Underwriting discounts and commissions	$ 1,656
Offering expenses paid	$ 952
Common Stock | IPO
Company And Significant Accounting Policies [Line Items]
Proceeds from issuance of public offering			$ 36,849
Issuance of common stock, net of issuance costs, shares			505,714	3,571,429			4,077,143		4,297,901
Shares issued and sold, price per share			$ 11	$ 11
Underwriting discounts and commissions			$ 3,139
Offering expenses paid			$ 4,861
Deferred offering costs											$ 63
Common Stock | Over-Allotment
Company And Significant Accounting Policies [Line Items]
Issuance of common stock, net of issuance costs, shares			30,000
Shares issued and sold, price per share			$ 11

Revenue Recognition - Schedule

Revenue Recognition - Schedule of Changes in Account Balances as a Result to Adoption of ASC 606 (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Net revenues	$ 21,058	$ 43,747	$ 33,764	$ 70,231
Cost of revenues	16,140	29,302	26,681	46,765
Gross profit	4,918	14,445	7,083	23,466
Operating expenses:
Research and development	3,256	7,384	7,192	14,345
Sales and marketing	2,596	4,218	5,727	7,944
General and administrative	5,686	7,424	8,758	9,900
Total operating expenses	11,538	19,026	22,764	32,189
Loss from operations	(6,620)	(4,581)	(15,681)	(8,723)
Interest expense	(302)	(555)	(621)	(977)
Other income (expense), net	6	(6)	(395)	(271)
Loss before income taxes	(6,916)	(5,142)	(16,697)	(9,971)
Income tax expense	(180)	(457)	(363)	(752)
Net loss	$ (7,096)	$ (5,599)	$ (17,060)	$ (10,723)
Net loss per share, basic and diluted	$ (0.22)	$ (0.31)	$ (0.65)	$ (0.63)
Weighted–average shares used in computing net loss per Share, basic and diluted	31,638,250	18,120,143	26,126,037	16,950,375
Balances Without Adoption of Topic 606
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Net revenues		$ 43,747		$ 70,231
Cost of revenues		28,937		46,042
Gross profit		14,810		24,189
Operating expenses:
Research and development		8,233		16,634
Sales and marketing		4,218		7,944
General and administrative		7,424		9,900
Total operating expenses		19,875		34,478
Loss from operations		(5,065)		(10,289)
Interest expense		(555)		(977)
Other income (expense), net		(6)		(271)
Loss before income taxes		(5,626)		(11,537)
Income tax expense		(457)		(752)
Net loss		$ (6,083)		$ (12,289)
Net loss per share, basic and diluted		$ (0.34)		$ (0.73)
Weighted–average shares used in computing net loss per Share, basic and diluted		18,120,143		16,950,375
Effect of Change Higher/(Lower) | Topic 606
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Cost of revenues		$ 365		$ 723
Gross profit		(365)		(723)
Operating expenses:
Research and development		(849)		(2,289)
Total operating expenses		(849)		(2,289)
Loss from operations		484		1,566
Loss before income taxes		484		1,566
Net loss		$ 484		$ 1,566
Net loss per share, basic and diluted		$ 0.03		$ 0.10

Revenue Recognition - Schedul_2

Revenue Recognition - Schedule of Net Revenue Disaggregated by Product Category (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation Of Revenue [Line Items]
Revenue	$ 21,058	$ 43,747	$ 33,764	$ 70,231
Smartphones
Disaggregation Of Revenue [Line Items]
Revenue	6,138	19,457	12,356	33,869
Feature Phones
Disaggregation Of Revenue [Line Items]
Revenue	13,835	23,068	19,736	33,399
Accessories/Other
Disaggregation Of Revenue [Line Items]
Revenue	$ 1,085	$ 1,122	$ 1,672	$ 2,963

Revenue Recognition - Additiona

Revenue Recognition - Additional Information (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Disaggregation Of Revenue [Line Items]
Total capitalized costs	$ 3,707
Contract liabilities	$ 346	$ 291
Other Assets
Disaggregation Of Revenue [Line Items]
Total capitalized costs		$ 4,525

Revenue Recognition - Summary o

Revenue Recognition - Summary of Contract Balances (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Balance at January 1, 2020	$ 291
Balance at June 30, 2020	346
Contractual Liability
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Balance at January 1, 2020	291
Recognition of revenue	(4)
Addition of revenue	59
Balance at June 30, 2020	$ 346

Fair Value Measurement - Summar

Fair Value Measurement - Summary of Fair Value Assets and Liabilities (Details) - Money Market Funds - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Assets:
Assets	$ 34,400	$ 9,250
Level 1
Assets:
Assets	$ 34,400	$ 9,250

Fair Value Measurement - Summ_2

Fair Value Measurement - Summary of Changes in Fair Value of Company's Level 3 Financial Liabilities (Details) - Level 3 - Trade-In Guarantee $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Fair Value Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 268
Recognition of revenue	$ (268)

Inventory - Schedule of Invento

Inventory - Schedule of Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Finished goods	$ 8,598	$ 13,559
Work in process	403
Raw materials	4,729	4,522
Accessories	1,495	1,450
Total inventory	$ 15,225	$ 19,531

Warranty Liability - Schedule o

Warranty Liability - Schedule of Warranty Liability Which is Included in Accrued Expenses on Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Guarantees And Product Warranties [Abstract]
Beginning balance	$ 1,154	$ 1,103
Additions	882	874
Cost of warranty claims	(647)	(552)
Ending balance	$ 1,389	$ 1,425

Borrowings - Additional Informa

Borrowings - Additional Information (Details)	Jun. 01, 2020USD ($)shares	Apr. 13, 2020USD ($)	Jul. 31, 2019USD ($)	Mar. 31, 2020	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jan. 01, 2019USD ($)Installment	Dec. 31, 2017USD ($)FinancingArrangement
Debt Instrument [Line Items]
Lines of credit repaid principal amount						$ 5,878,000
Proceeds from PPP Loan					$ 2,289,000
Other Financing Arrangements
Debt Instrument [Line Items]
Number of financing arrangements | FinancingArrangement										3
Debt instrument, face amount										$ 472,000
Other Financing Arrangement One
Debt Instrument [Line Items]
Debt instrument, maturity date				2020-06
Other Financing Arrangement Two
Debt Instrument [Line Items]
Debt instrument, maturity date				2020-08
Cares Act
Debt Instrument [Line Items]
Proceeds from PPP Loan		$ 2,300,000
Loan and Security Agreement | East West Bank
Debt Instrument [Line Items]
Maximum borrowings available							$ 0
Line of credit facility, cancellation date							Jun. 30, 2020
Subordinated Term Loan and Security Agreement | B. Riley Principal Investments, LLC
Debt Instrument [Line Items]
Maximum borrowings available			$ 10,000,000		12,000,000
Minimum principal amount outstanding of defined repayment penalties								$ 10,000,000
Prepayment penalty description								The prepayment penalty was 1% for 2019 through maturity.
Interest rate, stated percentage								10.00%
Debt prepayment penalties percentage								1.00%
Line of credit facility, maturity date								Sep. 1, 2022
Outstanding borrowings					0		$ 10,003,000
Lines of credit repaid principal amount			$ 3,250,000
Lines of credit repaid principal amount percentage			25.00%
Percentage of fee incurred			2.00%
Compounded interest					166,000
Note Amendment and Debt Cancellation Agreement | B. Riley Principal Investments, LLC
Debt Instrument [Line Items]
Outstanding indebtedness	$ 4,000,000
Outstanding borrowings	$ 6,170,000
Debt instrument redemption date	Jun. 9, 2020
Conversion shares | shares	8,226,834
Promissory Notes Payable
Debt Instrument [Line Items]
Debt instrument, outstanding balance					$ 472,000		$ 508,000		$ 736,000
Debt instrument, periodic payment, number of equal quarterly installments | Installment									20
Debt instrument, frequency of periodic payment					quarterly
Promissory Notes Payable | Minimum
Debt Instrument [Line Items]
Debt instrument, payment term					2 years
Promissory Notes Payable | Maximum
Debt Instrument [Line Items]
Interest rate, stated percentage					8.00%
Debt instrument, payment term					4 years

Borrowings - Schedule of Future

Borrowings - Schedule of Future Aggregate Annual Principal Payment on All Long-Term Debt (Details) $ in Thousands	Jun. 30, 2020USD ($)
Debt Disclosure [Abstract]
2020	$ 107
2021	144
2022	144
2023	78
Long-term Debt	$ 472

Warrants - Schedule of Warrants

Warrants - Schedule of Warrants Issued and Outstanding (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2019
Class Of Warrant Or Right [Line Items]
Number of warrant shares	29	956
Issuance Date, November 2012 Tranche One
Class Of Warrant Or Right [Line Items]
Exercise price	$ 6	$ 6
Number of warrant shares	7	7
Year of expiration	2028	2028
Issuance Date, November 2012 Tranche Two
Class Of Warrant Or Right [Line Items]
Exercise price	$ 6	$ 6
Number of warrant shares		927
Year of expiration	2020	2020
Issuance Date, November 2012 Tranche Three
Class Of Warrant Or Right [Line Items]
Exercise price	$ 14.50	$ 14.50
Number of warrant shares	22	22
Year of expiration	2028	2028

Stock-based Compensation - Addi

Stock-based Compensation - Additional Information (Details) - USD ($) $ in Thousands	May 15, 2020	May 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares exercised					363,857
Unamortized stock-based compensation cost related to unvested stock options			$ 3,545		$ 3,545
Unamortized stock-based compensation cost, weighted average period of recognition					3 years
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares, Unvested			2,150,000		2,150,000
Stock issued during period			2,015,500	0	2,015,500	0
2019 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available to be issued			356,072		356,072
Increase in common stock reserved for future issuance		3,000,000
Increase In common stock reserved for issuance of number of shares of capital stock outstanding			1,021,861		1,021,861
2019 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of shares available to be issued			408,453		408,453
Common stock, number of shares available for sale			541,379		541,379
Period in which reserved shares will increase annually					10 years
Increase in common stock reserved for issuance as a percentage of total number of shares of capital stock outstanding on the last day of the prior calendar year			1.00%		1.00%
Increase In common stock reserved for issuance of number of shares of capital stock outstanding on last day of prior calendar year			500,000		500,000
Increase In common stock reserved for issuance of number of shares of capital stock outstanding			204,372		204,372
Common stock reserved for issuance description					Additionally, the number of shares of common stock reserved for issuance under the 2019 Employee Stock Purchase Plan will automatically increase on January 1 of each calendar year for 10 years, starting January 1, 2020, and ending on, and including, January 1, 2029, in an amount equal to the lesser of 1% of the total number of shares of capital stock outstanding on December 31st of the prior calendar year, and (ii) 500,000 shares, unless the board of directors or compensation committee determines prior to such date that there will be a lesser increase, or no increase.
Number of shares issued	64,320
2012 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Expiration period					10 years
Number of shares exercised					0		0
2012 Equity Incentive Plan | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period					2 years
2012 Equity Incentive Plan | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period					4 years
2012 Equity Incentive Plan | Options and SARs | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price options granted from fair value common stock, percent					100.00%
2012 Equity Incentive Plan | Granted to Ten Percent Stockholders | Minimum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Exercise price options granted from fair value common stock, percent					110.00%
2012 Equity Incentive Plan | Granted to Ten Percent Stockholders | Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period					5 years
2019 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Common stock, number of shares available for sale			2,906,900		2,906,900
Period in which reserved shares will increase annually					10 years
Increase in common stock reserved for issuance as a percentage of total number of shares of capital stock outstanding on the last day of the prior calendar year			5.00%		5.00%
Common stock reserved for issuance description					2,906,900 shares of common stock are reserved for future issuance under the 2019 Equity Incentive Plan, plus the number of shares subject to outstanding stock options or other stock awards that were granted under the 2012 Option Plan that are forfeited, terminated, expire or are otherwise not issued. Additionally, the number of shares of common stock reserved for issuance under the 2019 Equity Incentive Plan will automatically increase on January 1 of each calendar year for 10 years, starting January 1, 2020 and ending on and including January 1, 2029, in an amount equal to 5% of the total number of shares of capital stock outstanding on December 31 of the prior calendar year, unless the board of directors or compensation committee determines prior to the date of increase that there will be a lesser increase, or no increase.

Stock-based Compensation - Sche

Stock-based Compensation - Schedule of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 235	$ 5,557	$ 458	$ 5,604
Research and development
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	71	172	131	175
Sales and marketing
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	49	467	106	478
General and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	102	4,899	198	4,931
Cost of revenues
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 13	$ 19	$ 23	$ 20

Stock-based Compensation - Summ

Stock-based Compensation - Summary of Stock Option Activity (Details) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020USD ($)$ / sharesshares	Dec. 31, 2019USD ($)$ / sharesshares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Options Outstanding | shares	2,645,714
Options granted | shares	20,000
Options exercised | shares	(363,857)
Options forfeited | shares	(416,357)
Options expired | shares	(79,007)
Options Outstanding | shares	1,806,493	2,645,714
Options Vested and expected to vest at June 30, 2020 | shares	1,806,493
Options exercisable at June 30, 2020 | shares	700,399
Outstanding, Weighted average exercise price per share | $ / shares	$ 3.50
Outstanding granted, Weighted average exercise price per share | $ / shares	0.85
Outstanding exercised, Weighted average exercise price per share | $ / shares	0.83
Outstanding forfeited, Weighted average exercise price per share | $ / shares	4.91
Options expired | $ / shares	6.32
Outstanding, Weighted average exercise price per share | $ / shares	3.56	$ 3.50
Vested and expected to vest at June 30, 2020, Weighted average exercise price per share | $ / shares	3.56
Exercisable at June 30, 2020, Weighted average exercise price per share | $ / shares	$ 4.12
Outstanding, Weighted average remaining contractual life (in years)	7 years 3 months 22 days	8 years 6 months 3 days
Vested and expected to vest at June 30, 2020, Weighted average remaining contractual life (in years)	7 years 3 months 22 days
Exercisable at June 30, 2020, Weighted average remaining contractual life (in years)	4 years 29 days
Outstanding, Aggregate Intrinsic Value | $	$ 108	$ 4,184
Vested and expected to vest at June 30, 2020, Aggregate Intrinsic Value | $	108
Exercisable at June 30, 2020, Aggregate Intrinsic Value | $	$ 107

Stock-based Compensation - Su_2

Stock-based Compensation - Summary of Outstanding RSUs (Details) - Restricted Stock Units	6 Months Ended
	Jun. 30, 2020shares
RSU's
Outstanding at January 1, 2020	249,500
Granted	2,015,500
Released	(41,750)
Forfeited	(73,250)
Outstanding at June 30, 2020	2,150,000

Income Taxes - Additional Infor

Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2017	Mar. 31, 2020
Income Tax Disclosure [Abstract]
Provisions for income tax expense/(benefit)	$ 180	$ 457	$ 363	$ 752
Reclassified minimum tax credit amount						$ 68
Corporate tax rate			21.00%		35.00%
Gross amount of unrecognized tax benefits	$ 7,000		$ 7,000

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details)	Dec. 11, 2019Employee	Jul. 31, 2020USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2020USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2019USD ($)
Loss Contingencies [Line Items]
Contingent severance obligation accrual		$ 2,000,000
Severance obligation change in control period					12 months
Contingent severance obligation accrual			$ 0		$ 0		$ 0
Transaction Bonus Plan ("Plan")
Loss Contingencies [Line Items]
Percentage of consideration payable	10.00%
Term of plan	3 years
Chief Executive Officer | Transaction Bonus Plan ("Plan")
Loss Contingencies [Line Items]
Percentage of ownership interest in plan	50.00%
Chief Financial Officer | Transaction Bonus Plan ("Plan")
Loss Contingencies [Line Items]
Percentage of ownership interest in plan	10.00%
Other Key Employees | Transaction Bonus Plan ("Plan")
Loss Contingencies [Line Items]
Percentage of ownership interest in plan	25.00%
Number of employees | Employee	6
Cost of Revenues
Loss Contingencies [Line Items]
Royalty expense			843,000	$ 1,247,000	1,194,000	$ 1,698,000
General and administrative
Loss Contingencies [Line Items]
Contingent severance obligation accrual					2,000,000
Maximum
Loss Contingencies [Line Items]
Severance obligation before change in control			1,754,000		1,754,000
Severance obligation change in control			$ 2,345,000		$ 2,345,000
Wireless Essential Patent Holders
Loss Contingencies [Line Items]
Royalty expire year					2021
Wireless Essential Patent Holders | Maximum
Loss Contingencies [Line Items]
Royalty payment percent of net revenues					5.00%
Other Providers of Integrated Technologies
Loss Contingencies [Line Items]
Royalty expire year					2023
Other Providers of Integrated Technologies | Maximum
Loss Contingencies [Line Items]
Royalty payment percent of net revenues					5.00%

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Related Party Transactions [Abstract]
Consulting fees	$ 53

Net Loss Per Share Attributab_3

Net Loss Per Share Attributable to Common Stockholders - Schedule of Computation of Basic and Diluted Net Loss Per Share Attributable to Common Stockholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Numerator:
Net loss allocable to common stockholders	$ (7,096)	$ (5,599)	$ (17,060)	$ (10,723)
Denominator:
Weighted-average shares used in computing net loss per share, basic and diluted	31,638,250	18,120,143	26,126,037	16,950,375
Net loss per share, basic and diluted	$ (0.22)	$ (0.31)	$ (0.65)	$ (0.63)

Net Loss Per Share Attributab_4

Net Loss Per Share Attributable to Common Stockholders - Summary of Dilutive Common Shares were Excluded from Calculation of Diluted Net Loss Per Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total dilutive common shares excluded from calculation of diluted net loss per share	3,956,522	3,047,526	3,956,522	3,047,526
Shares Subject to Options to Purchase Common Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total dilutive common shares excluded from calculation of diluted net loss per share	1,806,493	1,819,292	1,806,493	1,819,292
Unvested Restricted Stock Units
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total dilutive common shares excluded from calculation of diluted net loss per share	2,150,000	128,000	2,150,000	128,000
Shares Subject to Warrants to Purchase Common Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total dilutive common shares excluded from calculation of diluted net loss per share	29	956	29	956
Shares Subject to Term Debt Optional Conversion into Common Stock
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Total dilutive common shares excluded from calculation of diluted net loss per share		1,099,278		1,099,278

Entity Level Information - Addi

Entity Level Information - Additional Information (Details) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2020USD ($)Segment	Dec. 31, 2019USD ($)
Revenues From External Customers And Long Lived Assets [Line Items]
Number of reporting segment | Segment	1
Allowance for credit losses	$ 52	$ 52
Receivables | Customer Concentration | Customer One
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage	43.00%	40.00%
Receivables | Customer Concentration | Customer Two
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage	12.00%	28.00%
U.S [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	$ 5,394	$ 6,626
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Long-lived assets	$ 1,161	$ 1,492

Entity Level Information - Summ

Entity Level Information - Summary of Revenue by Region (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 21,058	$ 43,747	$ 33,764	$ 70,231
U.S [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	17,478	35,125	25,696	55,232
Canada and Latin America [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	2,579	5,662	6,658	9,290
Europe and Middle East [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	446	2,210	794	4,010
Asia Pacific [Member]
Revenues From External Customers And Long Lived Assets [Line Items]
Revenue	$ 555	$ 750	$ 616	$ 1,699

Entity Level Information - Comp

Entity Level Information - Composition of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	$ 21,058	$ 43,747	$ 33,764	$ 70,231
Product Sales
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	21,042	43,609	33,737	69,941
Services
Entity Wide Information Revenue From External Customer [Line Items]
Total revenues	$ 16	$ 138	$ 27	$ 290

Entity Level Information - Perc

Entity Level Information - Percentage of Total Revenues (Details) - Revenues - Customer Concentration	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Customer A
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage		32.00%		34.00%
Customer B
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage	58.00%		46.00%
Customer C
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage		25.00%		20.00%
Customer D
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage			12.00%
Customer E
Revenues From External Customers And Long Lived Assets [Line Items]
Concentration risk percentage		10.00%

Restructuring Costs - Additiona

Restructuring Costs - Additional Information (Details) $ in Thousands	1 Months Ended	6 Months Ended	12 Months Ended
	Feb. 29, 2020	Jun. 30, 2020USD ($)Employee	Dec. 31, 2019Employee	Dec. 31, 2018Employee
Restructuring Cost And Reserve [Line Items]
Number of employees and contractors | Employee		341	500	700
Percentage of reduction in employees	10.00%
Restructuring costs		$ 1,204
Operating Expenses
Restructuring Cost And Reserve [Line Items]
Restructuring costs		1,104
Cost of revenues
Restructuring Cost And Reserve [Line Items]
Restructuring costs		$ 100

Restructuring Costs - Summary o

Restructuring Costs - Summary of Restructuring Costs (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2020USD ($)
Restructuring And Related Activities [Abstract]
Restructuring cost, Beginning balance	$ 511
Additions: expensed costs	1,204
Expenses paid out	(1,535)
Restructuring cost, Ending balance	$ 180