Smith Micro Software (SMSI) 10-Q 12 May 21 2021 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2021	May 06, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Trading Symbol	SMSI
Entity Registrant Name	SMITH MICRO SOFTWARE, INC.
Entity Central Index Key	0000948708
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		53,200,076
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	00-135525
Entity Tax Identification Number	33-0029027
Entity Address, Address Line One	5800 CORPORATE DRIVE
Entity Address, City or Town	PITTSBURGH
Entity Address, State or Province	PA
Entity Address, Postal Zip Code	15237
City Area Code	412
Local Phone Number	837-5300
Entity Interactive Data Current	Yes
Title of 12(b) Security	Common Stock, par value $0.001 per share
Security Exchange Name	NASDAQ
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	DE

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 89,247	$ 25,754
Accounts receivable, net of allowance for doubtful accounts and other adjustments of $5 and $10 (2021 and 2020, respectively)	8,333	12,347
Prepaid expenses and other current assets	908	1,189
Total current assets	98,488	39,290
Equipment and improvements, net	2,161	2,170
Right-of-use assets	5,690	5,785
Other assets	679	694
Intangible assets, net	10,400	12,698
Goodwill	12,266	12,266
Total assets	129,684	72,903
Current liabilities:
Accounts payable	2,640	2,282
Accrued payroll and benefits	3,150	2,867
Current operating lease liabilities	1,427	1,433
Other accrued liabilities	188	216
Deferred revenue	1,027	1,572
Total current liabilities	8,432	8,370
Non-current liabilities:
Operating lease liabilities	4,627	4,805
Deferred rent	845	887
Deferred tax liabilities, net	59	59
Other long term liabilities	66	66
Total non-current liabilities	5,597	5,817
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 51,645,718 and 41,232,804 shares issued and outstanding (2021 and 2020, respectively)	52	41
Additional paid-in capital	340,058	279,905
Accumulated comprehensive deficit	(224,455)	(221,230)
Total stockholders’ equity	115,655	58,716
Total liabilities and stockholders' equity	$ 129,684	$ 72,903

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 5	$ 10
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	51,645,718	41,232,804
Common stock, shares outstanding	51,645,718	41,232,804

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenues	$ 11,381	$ 13,322
Cost of revenues	1,545	1,173
Gross profit	9,836	12,149
Operating expenses:
Selling and marketing	4,232	2,787
Research and development	5,183	3,729
General and administrative	3,658	3,668
Restructuring expense		6
Total operating expenses	13,073	10,190
Operating income (loss)	(3,237)	1,959
Other income:
Interest income, net	8	86
Other income	4
Income (loss) before provision for income taxes	(3,225)	2,045
Net income (loss)	$ (3,225)	$ 2,045
Earnings (loss) per share:
Basic and diluted	$ (0.07)	$ 0.05
Weighted average shares outstanding:
Basic	43,368	39,482
Diluted	43,368	42,194

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Comprehensive Deficit [Member]
BALANCE at Dec. 31, 2019	$ 48,684	$ 38	$ 274,041	$ (225,395)
BALANCE, Shares at Dec. 31, 2019		38,475,000
Non-cash compensation recognized on stock options and ESPP	13		13
Restricted stock grants, net of cancellations	619	$ 1	618
Restricted stock grants, net of cancellations, shares		1,000,000
Cancellation of shares for payment of withholding tax	(571)		(571)
Cancellation of shares for payment of withholding tax, shares		(110,000)
Employee stock purchase plan	5		5
Employee stock purchase plan, shares		2,000
Exercise of common stock warrants	2,045	$ 1	2,044
Exercise of common stock warrants, shares		1,009,000
Exercise of stock options	13		13
Exercise of stock options, shares		7,000
Net income (loss)	2,045			2,045
BALANCE at Mar. 31, 2020	52,853	$ 40	276,163	(223,350)
BALANCE, Shares at Mar. 31, 2020		40,383,000
BALANCE at Dec. 31, 2020	$ 58,716	$ 41	279,905	(221,230)
BALANCE, Shares at Dec. 31, 2020	41,232,804	41,233,000
Non-cash compensation recognized on stock options and ESPP	$ 18		18
Restricted stock grants, net of cancellations	998	$ 1	997
Restricted stock grants, net of cancellations, shares		970,000
Cancellation of shares for payment of withholding tax	(824)		(824)
Cancellation of shares for payment of withholding tax, shares		(121,000)
Employee stock purchase plan	15		15
Employee stock purchase plan, shares		4,000
Common shares issued in stock offering, net of offering costs	59,898	$ 10	59,888
Common shares issued in stock offering, net offering costs, shares		9,521,000
Exercise of common stock warrants	40		40
Exercise of common stock warrants, shares		33,000
Exercise of stock options	19		19
Exercise of stock options, shares		6,000
Net income (loss)	(3,225)			(3,225)
BALANCE at Mar. 31, 2021	$ 115,655	$ 52	$ 340,058	$ (224,455)
BALANCE, Shares at Mar. 31, 2021	51,645,718	51,646,000

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating activities:
Net income (loss)	$ (3,225)	$ 2,045
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	2,497	644
Non-cash lease expense	307	244
Restructuring costs		6
Provision for doubtful accounts and other adjustments to accounts receivable	(3)	(4)
Provision for excess and obsolete inventory	(97)
Stock based compensation	1,016	632
Changes in operating accounts:
Accounts receivable	4,018	(983)
Prepaid expenses and other assets	381	215
Accounts payable and accrued liabilities	(649)	(840)
Deferred revenue	(545)	302
Net cash provided by operating activities	3,700	2,261
Investing activities:
Capital expenditures	(190)	(771)
Other investing activities	11	(215)
Net cash used in investing activities	(179)	(13,136)
Financing activities:
Proceeds from common stock offering, net of offering expenses	59,898
Proceeds from exercise of common stock warrants	40	2,045
Other financing activities	34	18
Net cash provided by financing activities	59,972	2,063
Net increase (decrease) in cash and cash equivalents	63,493	(8,812)
Cash and cash equivalents, beginning of period	25,754	28,268
Cash and cash equivalents, end of period	89,247	19,456
Supplemental disclosures of cash flow information:
Cash paid for income taxes	$ 23	19
Circle Operator [Member]
Investing activities:
Acquisition of Smart Retail business and Circle operator business, net		$ (12,150)

The Company

The Company	3 Months Ended
	Mar. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
The Company	1. The Company Smith Micro Software, Inc. (“Smith Micro”, the “Company”, “we”, “us”, or “our”) develops software to simplify and enhance the mobile experience, providing solutions to some of the leading wireless and cable service providers around the world. From enabling the family digital lifestyle to providing powerful voice messaging capabilities, we strive to enrich today’s connected lifestyles while creating new opportunities to engage consumers via smartphones and consumer IoT devices. Our portfolio includes a wide range of products for creating, sharing and monetizing rich content, such as visual voice messaging, retail content display optimization and performance analytics on any product set.

Accounting Policies

Accounting Policies	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Accounting Policies	2. Accounting Policies Basis of Presentation The accompanying interim consolidated balance sheet as of March 31, 2021, and the related consolidated statements of operations, stockholders’ equity, and cash flows for the three months ended March 31, 2021 and 2020, are unaudited. The unaudited consolidated financial statements have been prepared according to the rules and regulations of the Securities and Exchange Commission (“SEC”) and, therefore, certain information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) have been omitted. In the opinion of management, the accompanying unaudited consolidated financial statements for the periods presented reflect all adjustments which are normal and recurring, and necessary to fairly state the financial position, results of operations, and cash flows of the Company. These unaudited consolidated financial statements should be read in conjunction with the audited financial statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 filed with the SEC on March 8, 2021. Intercompany balances and transactions have been eliminated in consolidation. Operating results for the three months ended March 31, 2021 are not necessarily indicative of the results that may be expected for any other interim period or for the fiscal year ending December 31, 2021. Impact of COVID-19 In March 2020, the World Health Organization categorized coronavirus disease 2019 (COVID-19) as a pandemic, and the President of the United States declared the COVID-19 outbreak a national emergency. We continue to monitor the spread of COVID-19 throughout the United States and other countries across the world. The duration and severity of its effects continue to be uncertain. While the response to the COVID-19 outbreak continues to rapidly evolve, it has led to stay-at-home orders and social distancing guidelines that have seriously disrupted, and continue to disrupt, activities in large segments of the economy. During the past four quarters, we saw a reduction in the number of SafePath® platform subscribers compared to March 2020, which we believe was largely driven by the COVID-19 related economic slowdown. The Company’s consolidated financial statements presented herein reflect estimates and assumptions made by management that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and reported amounts of revenue and expenses during the reporting periods presented. As the impact of the COVID-19 pandemic on the economy and the Company’s operations continue to evolve, we will continue to monitor the impact on the Company’s operations and, if needed, postpone non-essential capital expenditures, reduce operating costs, and substantially reduce discretionary spending . Revenue Recognition In accordance with FASB ASC Topic No. 606, Revenue from Contracts with Customers, W e transfer software licenses to our customers on a royalty free, non-exclusive, non-transferrable, limited use basis during the term of the agreement. In some instances, we perform customization services to ensure the softwar e operates within our customers’ operating platforms as well as the operating platforms of the mobile devices used by their end customers, before transferring the license. Revenue related to these services is recognized at a point in time upon acceptance of the software license by the customer. We also earn usage based revenue on our platforms. Usage based revenue is generated based on active licenses used by our customers’ end customers, the provision of hosting services, revenue share based on media placements on our platform, and use of our cloud based services. We recognize our usage based revenue when we have completed our performance obligation and have the right to invoice the customer. This revenue is generally recognized monthly or quarterly. Finally, in this segment, we ratably recognize revenue over the contract period when customers pay in advance of our service delivery . On February 12, 2020, we acquired certain assets from Circle (as defined in Note 3 below), including a source code license to Circle’s parental control software solution and two customer contracts. Pursuant to these contracts, the customer parties thereto license the parental control software solution for distribution to their respective subscribers in designated markets. In each case, the contracts allow the customer to take possession of the software solution and to host it on their platform or with an independent third party hosting service provider without significant cost. We also provide significant services that are required by the customer to ensure they have the utility of the license. As the license to the software solution and the services we provide are highly interrelated, we have concluded that the license and our services are a single performance obligation. The license fee is earned and recognized on a pro-rata basis over the contract term based on our customer’s continued use of the license and our services. We also provide consulting services to develop customer-specified functionality that is generally not on our software development roadmap. We recognize revenue from our consulting services upon delivery and acceptance by the customer of our software enhancements and upgrades. For certain customers we provide maintenance and technology support services for which the customer either pays upfront or as we provide the services. When the customer pays upfront, we record the payments as contract liabilities and recognize revenue ratably over the contract period as this is our stand ready performance obligation that is satisfied ratably over the maintenance and technology services period. We receive upfront payments from customers from services to be provided under our ViewSpot® contracts. The advance receipts are deferred and subsequently recognized ratably over the contract period. We also provide consulting services to configure ad hoc targeted promotional content for our customers upon request. These requests are driven by our customers’ marketing initiatives and tend to be short term “bursts” of activity. We recognize these revenues upon delivery of the configured promotional content to the cloud platform. Fair Value Measurements The Company measures and discloses fair value measurements as required by FASB ASC Topic No. 820, Fair Value Measurements and Disclosures Fair value is an exit price, representing the amount that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, the FASB establishes a three-tier value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value: • Level 1 - Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets • Level 2 - Include other inputs that are directly or indirectly observable in the marketplace • Level 3 - Unobservable inputs which are supported by little or no market activity The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. As required by FASB ASC Topic No. 820, we measure our cash and cash equivalents at fair value. Our cash equivalents are classified within Level 1 by using quoted market prices utilizing market observable inputs. As required by FASB ASC Topic No. 350, for goodwill and other intangibles impairment analysis, we utilize fair value measurements which are categorized within Level 3 of the fair value hierarchy.

Acquisitions

Acquisitions	3 Months Ended
	Mar. 31, 2021
Business Combinations [Abstract]
Acquisitions	3. Acquisitions On February 12, 2020, the Company acquired the operator business of Circle Media Labs Inc. (“Circle”) pursuant to a certain Asset Purchase Agreement by and between the Company and Circle. The following table summarizes the consideration paid for the Circle acquisition in 2020 (unaudited, in thousands): Fair value of assets acquired $ 14,966 Fair value of liabilities assumed 1,466 Total purchase price $ 13,500 Components of purchase price: Cash $ 13,500 Total purchase price $ 13,500 The Company’s allocation of the purchase price is summarized as follows (unaudited, in thousands): Assets: Inventory, net $ 14 Intangible assets 10,483 Goodwill 4,469 Total assets $ 14,966 Liabilities: Deferred revenue $ 1,290 Amounts due to seller 176 Total liabilities 1,466 Total purchase price $ 13,500 All of the goodwill will be deductible for tax purposes. Pursuant to the transaction, Smith Micro acquired certain assets related to the Circle operator business, including two new customer contracts and a source code license to Circle’s then deployed parental control software and related technology. Unaudited pro forma results of operations for the three months ended March 31, 2021 and 2020 are included below as if the Circle acquisition occurred on January 1, 2019. This summary of the unaudited pro forma results of operations is not necessarily indicative of what the Company’s results of operations would have been had the operator business of Circle been acquired at the beginning of 2019, nor does it purport to represent results of operations for any future periods. For the Three Months Ended March 31, 2021 2020 (unaudited, in thousands, except per share amounts) Revenues $ 11,381 $ 13,789 Net income (loss) (3,225 ) 2,105 Earnings (loss) per share: Basic $ (0.07 ) $ 0.05 Diluted $ (0.07 ) $ 0.05

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	4. Goodwill and Intangible Assets In accordance with FASB ASC Topic No. 350, Intangibles-Goodwill and Other During the first quarter of 2021, we received a customer contract termination notice related to a customer contract acquired in the acquisition of Circle’s operator business (as discussed in Note 3), which was otherwise set to expire in the second quarter of 2024. The contract was terminated effective April 15, 2021 ; however, in accordance with its terms, we continue to deliver wind-down services under the contract. While the terms of the contract allow for a wind-down period of up to two years post termination, the Company expects to continue services under this contract through the second quarter of 2022. The Company determined the customer contract should be accounted for under the contract modification guidance in Topic 606 . As a result, the Company recognized deferred revenue of $ 0.6 million which was being amortized over the customer contract term and will amortize the remaining $ 0.3 million over the remaining service period. Additionally, the Company reviewed its customer contract intangible asset associated with this customer contract and determined that the carrying value was in excess of it s fair value. Accordingly, the Company recorded a $ 1.5 million impairment charge within “selling and marketing expenses” in the consolidated statements of operations during the three months ended March 31, 2021 and will amortize the remaining $ 0.4 million over the remaining service period.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share	5. Earnings Per Share The Company calculates earnings per share (“EPS”) as required by FASB ASC Topic No. 260, Earnings Per Share The following table sets forth the details of basic and diluted earnings per share: For the Three Months Ended March 31, 2021 2020 (unaudited, in thousands, except per share amounts) Numerator: Net income (loss) $ (3,225 ) $ 2,045 Denominator: Weighted average shares outstanding – basic 43,368 39,482 Potential common shares – options / warrants (treasury stock method) — 2,712 Weighted average shares outstanding – diluted 43,368 42,194 Shares excluded (anti-dilutive) 2,559 77 Net earnings (loss) per common share: Basic $ (0.07 ) $ 0.05 Diluted $ (0.07 ) $ 0.05

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2021
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock-Based Compensation	6. Stock-Based Compensation Stock Plans During the three months ended March 31, 2021 , the Company granted shares of restricted stock and incentive stock options exercisable for shares under the Comp any’s 2015 Omnibus Equity Incentive Plan, as amended (the “2015 Plan”) . As of March 31, 2021 , there were approximately 3.9 million shares available for future grants under the Company’s 2015 Plan.

Revenues

Revenues	3 Months Ended
	Mar. 31, 2021
Revenue From Contract With Customer [Abstract]
Revenues	7. Revenues Revenue Recognition We primarily sell our software solutions, cloud-based services and consulting services to major wireless network and cable operators. We recognize sales of goods and services based on the five-step analysis of transactions as provided in Topic 606. For all contracts with customers, we first identify the contract which usually is established when a contract is fully executed by each party and consideration is expected to be received. Next, we identify the performance obligations in the contract. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. We then determine the transaction price in the arrangement and allocate the transaction price, if necessary, to each performance obligation identified in the contract. The allocation of the transaction price to the performance obligations is based on the relative standalone selling prices for the goods and services contained in a particular performance obligation. The transaction price is adjusted for the Company’s estimate of variable consideration which may include certain incentives and discounts, product returns, distributor fees, and storage fees. We evaluate the total amount of variable consideration expected to be earned by using the expected value method, as we believe this method represents the most appropriate estimate for this consideration, based on historical service trends, the individual contract considerations and our best judgment at the time. We include estimates of variable consideration in revenues only to the extent that it is probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved. We also generate the majority of our revenue on usage based fees which are variable and depend entirely on our customers’ use of perpetual licenses, transactions processed on our hosted environment, advertisement placements on our service platform, and activity on our cloud-based service platform. As discussed in Note 3, on February 12, 2020, we purchased two customer contracts, among other assets, from Circle. Under these contracts, we provide our customers with licenses to software solutions and related services, for which we earn license fees, managed and hosting service fees, and consulting services which are provided throughout the life of the licensing arrangement. Our contracts with the Tier 1 customers include promises to transfer multiple products and services. Determining whether products and services are considered distinct performance obligations that should be accounted for separately versus together may require significant judgment. Our cloud-based service includes a software solution license integrated with cloud-based services. Judgment is required to determine whether the software license is considered distinct and accounted for separately, or not distinct and accounted for together with the cloud service and recognized over time. Since we do not allow our customers to take possession of the software solution, and since the utility of the license comes from the could-based services that we provide, we consider the software license and the cloud services to be a single performance obligation. We provide the Circle software solution license together with highly integrated consulting services to generate the utility of the license to the customers. Since the software solution and consulting services provided are highly interrelated, we consider the license and the consulting services to be a single performance obligation. We also provide consulting services to configure ad hoc targeted promotional content to be presented on our solutions, as well as consulting services to provide additional functionality for our software solutions based on our customers’ request. These requests are driven by our customers’ marketing initiatives and tend to be short term “bursts” of activity or specific incremental functionality to existing software solutions. We recognize these revenues upon delivery and acceptance of the configured promotional content or additional functionality to the software solution. We have made accounting policy elections to exclude all taxes by governmental authorities from the measurement of the transaction price, and since our standard payment terms are less than one year, we have elected the practical expedient not to assess whether a contract has a significant financing component. Deferred Revenue Deferred revenue represents amounts billed to customers for which revenue has not been recognized. Deferred revenue primarily consists of the unearned portion of monthly, quarterly and annually billed service fees and prepayments made by customers for a future period. We recognize revenue upon transfer of control. As of March 31, 2021, our total deferred revenue balance was $1.0 million, of which $0.9 million was related to the acquisition of the Circle operator business. As also discussed in Note 4, during the first quarter of 2021, we received a customer contract termination notice related to a customer contract acquired in the acquisition of Circle’s operator business (as discussed in Note 3), which was otherwise set to expire in the second quarter of 2024. The contract was terminated effective April 15, 2021; however, in accordance with its terms, we continue to deliver wind-down services under the contract. While the terms of the contract allow for a wind-down period of up to two years post termination, the Company expects to continue services under this contract through the second quarter of 2022. The Company determined the customer contract should be accounted for under the contract modification guidance in Topic 606. As a result, the Company recognized deferred revenue of $0.6 million which was being amortized over the customer contract term and will amortize the remaining $0.3 million over the remaining service period. Additionally, the Company reviewed its customer contract intangible asset associated with this customer contract and determined that the carrying value was in excess of its fair value. Accordingly, the Company recorded a $ 1.5 million impairment charge within “selling and marketing expenses” in the consolidated statements of operations during the three months ended March 31, 2021 and will amortize the remaining $ 0.4 million over the remaining service period. Disaggregation of Revenues Revenues on a disaggregated basis are as follows (in thousands): For the Three Months Ended March 31, 2021 2020 (unaudited) License and service fees $ 1,587 $ 555 Hosted environment usage fees 4,141 4,549 Cloud based usage fees 4,963 7,647 Consulting services and other 690 571 Total revenues $ 11,381 $ 13,322

Segment, Customer Concentration

Segment, Customer Concentration and Geographical Information	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Segment, Customer Concentration and Geographical Information	8. Segment, Customer Concentration and Geographical Information Segment Information Public companies are required to report financial and descriptive information about their reportable operating segments as required by FASB ASC Topic No. 280, Segment Reporting The Company does not separately allocate operating expenses to these business units, nor does it allocate specific assets. Therefore, business unit information reported includes only revenues. The following table presents the Wireless revenues by product (in thousands): For the Three Months Ended March 31, 2021 2020 (unaudited) SafePath $ 6,267 $ 7,848 CommSuite 4,128 4,539 ViewSpot 930 745 Other 56 83 Total wireless revenues $ 11,381 $ 13,215 Customer Concentration Information The Company has certain customers whose revenues individually represented 10% or more of the Company’s total revenues, or whose accounts receivable balances individually represented 10% or more of the Company’s total accounts receivable, as follows: For the three months ended March 31, 2021 and 2020, three customers accounted for 91% and one customer accounted for 91% of revenues, respectively. As of March 31, 2021, two customers accounted for 80% of accounts receivable, and at March 31, 2020, one customer accounted for 84% of accounts receivable. Geographical Information During the three months ended March 31, 2021 and 2020, the Company operated in three geographic locations; the Americas, EMEA (Europe, the Middle East, and Africa), and Asia Pacific. Revenues attributed to the geographic location of the customers’ bill-to address were as follows (in thousands): For the Three Months Ended March 31, 2021 2020 (unaudited) Americas $ 10,144 $ 13,304 EMEA 1,237 8 Asia Pacific — 10 Total revenues $ 11,381 $ 13,322 The Company does not separately allocate specific assets to these geographic locations.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	9. Commitments and Contingencies Litigation The Company may become involved in various legal proceedings arising from its business activities. While management does not believe the ultimate disposition of these matters will have a material adverse impact on the Company’s consolidated results of operations, cash flows, or financial position, litigation is inherently unpredictable, and depending on the nature and timing of these proceedings, an unfavorable resolution could materially affect the Company’s future consolidated results of operations, cash flows, or financial position in a particular period. Other Contingent Contractual Obligations During its normal course of business, the Company has made certain indemnities, commitments, and guarantees under which it may be required to make payments in connection with certain transactions. These include: intellectual property indemnities to the Company’s customers and licensees in connection with the use, sale, and/or license of Company products; indemnities to various lessors in connection with facility leases for certain claims arising from use of such facility or under such lease; indemnities to vendors and service providers pertaining to claims based on the negligence or willful misconduct of the Company; indemnities involving the accuracy of representations and warranties in certain contracts; and indemnities to directors and officers of the Company to the maximum extent permitted under the laws of the State of Delaware. In addition, the Company has made contractual commitments to employees providing for severance payments upon the occurrence of certain prescribed events. The Company may also issue a guarantee in the form of a standby letter of credit as security for contingent liabilities under certain customer contracts. The duration of these indemnities, commitments, and guarantees varies, and in certain cases may be indefinite. The majority of these indemnities, commitments, and guarantees may not provide for any limitation of the maximum potential for future payments the Company could be obligated to make. The Company has not recorded any liability for these indemnities, commitments, and guarantees in the accompanying consolidated balance sheets.

Leases

Leases	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Leases	10. Leases The Company leases office space and equipment, and certain office space is subleased. Management determines if a contract is a lease at the inception of the arrangement and reviews all options to extend, terminate, or purchase its right-of-use assets at the inception of the lease and accounts for these options when they are reasonably certain of being exercised. Leases with an initial term of greater than twelve months are recorded on the consolidated balance sheet. Lease expense is recognized on a straight-line basis over the lease term. The Company’s lease contracts generally do not provide a readily determinable implicit rate. For these contracts, the estimated incremental borrowing rate is based on information available at the inception of the lease. Operating lease cost consists of the following (in thousands): For the Three Months Ended March 31, 2021 2020 Lease cost $ 558 $ 527 Sublease income (151 ) (151 ) Total lease cost $ 407 $ 376 The maturity of operating lease liabilities is presented in the following table (in thousands): As of March 31, 2021 (unaudited) 2021 $ 1,386 2022 1,615 2023 1,600 2024 1,226 2025 867 Thereafter 291 Total lease payments 6,985 Less imputed interest (931 ) Present value of lease liabilities $ 6,054 Additional information relating to the Company’s operating leases follows: As of March 31, 2021 (unaudited) Weighted average remaining lease term (years) 4.27 Weighted average discount rate 6.75 %

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2021
Income Tax Disclosure [Abstract]
Income Taxes	11. Income Taxes We account for income taxes as required by FASB ASC Topic No. 740, Income Taxes The Company assesses whether a valuation allowance should be recorded against its deferred tax assets based on the consideration of all available evidence, using a “more likely than not” realization standard. The four sources of taxable income that must be considered in determining whether deferred tax assets will be realized are: (1) future reversals of existing taxable temporary differences (i.e., offset of gross deferred tax liabilities against gross deferred tax assets); (2) taxable income in prior carryback years, if carryback is permitted under the applicable tax law; (3) tax planning strategies; and (4) future taxable income exclusive of reversing temporary differences and carryforwards. In assessing whether a valuation allowance is required, significant weight is to be given to evidence that can be objectively verified. A significant factor in the Company’s assessment is that the Company was in a five-year After a review of the four sources of taxable income as of December 31, 2020, and after consideration of the Company’s cumulative loss position as of December 31, 2020, the Company will continue to reserve its U.S.-based deferred tax amounts, which total $49.4 million as of March 31, 2021. The Company is subject to U.S. federal income tax as well as income tax of multiple state jurisdictions. Currently there are no audits in process or pending from Federal or state tax authorities. State income tax returns are subject to examination for a period of three to four years after filing. As of December 31, 2020, the company had no outstanding tax audits. The outcome of tax audits cannot be predicted with certainty. If any issues addressed in the Company’s tax audits are resolved in a manner not consistent with management’s expectations, the Company could be required to adjust its provision for income tax in the period such resolution occurs. We may from time to time be assessed interest or penalties by major tax jurisdictions, although any such assessments historically have been minimal and immaterial to our consolidated financial results. It is the Company’s policy to classify any interest and/or penalties in the consolidated financial statements as a component of income tax expense. On March 27, 2020, the Coronavirus Aid, Relief and Economic Security Act (CARES Act) was enacted in response to the COVID-19 pandemic. The CARES Act, among other things, permits NOL carryovers and carrybacks to offset taxable income for years beginning before 2021. The CARES Act also made modifications to IRC Sec. 163(j) to increase the allowable interest from 30% of adjusted taxable income to 50% of adjusted taxable income. The CARES Act changes in NOL carrybacks interest expense limitation had no impact on the Company’s tax provision. We continue to analyze the different aspects of the CARES Act to determine whether any specific provisions may impact us.

Equity Transactions

Equity Transactions	3 Months Ended
	Mar. 31, 2021
Equity [Abstract]
Equity Transactions	12. Equity Transactions On March 15, 2021, the Company completed a registered public offering (“Offering”), wherein a total of 9,520,787 shares of the Company’s common stock were issued at a purchase price of $6.85 per share, for a total purchase price of $65.2 million. The Offering raised net cash proceeds of approximately $59.9 million after deducting the underwriting discount and fees and expenses of the Offering. The Company used the net cash proceeds from the Offering to fund, in part, the acquisition of Avast plc’s Family Safety Mobile business completed on April 16, 2021 (see Note 13 for additional information).

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	13. Subsequent Events The Company evaluates and discloses subsequent events as required by FASB ASC Topic No. 855, Subsequent Events On April 16, 2021, the Company completed the acquisition of Avast plc’s Family Safety Mobile business. Pursuant to the terms of the transaction, the Company paid an aggregate purchase price of $66.0 million, net of an escrow of $5.0 million, consisting of $51.1 million in cash (excluding any adjustments for working capital and other closing adjustments) and the issuance of 1,460,131 unregistered shares of the Company’s common stock valued at $8.4 million on the transaction date.

Accounting Policies (Policies)

Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
The Company	The Company Smith Micro Software, Inc. (“Smith Micro”, the “Company”, “we”, “us”, or “our”) develops software to simplify and enhance the mobile experience, providing solutions to some of the leading wireless and cable service providers around the world. From enabling the family digital lifestyle to providing powerful voice messaging capabilities, we strive to enrich today’s connected lifestyles while creating new opportunities to engage consumers via smartphones and consumer IoT devices. Our portfolio includes a wide range of products for creating, sharing and monetizing rich content, such as visual voice messaging, retail content display optimization and performance analytics on any product set.
Basis of Presentation	Basis of Presentation The accompanying interim consolidated balance sheet as of March 31, 2021, and the related consolidated statements of operations, stockholders’ equity, and cash flows for the three months ended March 31, 2021 and 2020, are unaudited. The unaudited consolidated financial statements have been prepared according to the rules and regulations of the Securities and Exchange Commission (“SEC”) and, therefore, certain information and disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) have been omitted. In the opinion of management, the accompanying unaudited consolidated financial statements for the periods presented reflect all adjustments which are normal and recurring, and necessary to fairly state the financial position, results of operations, and cash flows of the Company. These unaudited consolidated financial statements should be read in conjunction with the audited financial statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020 filed with the SEC on March 8, 2021. Intercompany balances and transactions have been eliminated in consolidation. Operating results for the three months ended March 31, 2021 are not necessarily indicative of the results that may be expected for any other interim period or for the fiscal year ending December 31, 2021.
Impact of COVID-19	Impact of COVID-19 In March 2020, the World Health Organization categorized coronavirus disease 2019 (COVID-19) as a pandemic, and the President of the United States declared the COVID-19 outbreak a national emergency. We continue to monitor the spread of COVID-19 throughout the United States and other countries across the world. The duration and severity of its effects continue to be uncertain. While the response to the COVID-19 outbreak continues to rapidly evolve, it has led to stay-at-home orders and social distancing guidelines that have seriously disrupted, and continue to disrupt, activities in large segments of the economy. During the past four quarters, we saw a reduction in the number of SafePath® platform subscribers compared to March 2020, which we believe was largely driven by the COVID-19 related economic slowdown. The Company’s consolidated financial statements presented herein reflect estimates and assumptions made by management that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and reported amounts of revenue and expenses during the reporting periods presented. As the impact of the COVID-19 pandemic on the economy and the Company’s operations continue to evolve, we will continue to monitor the impact on the Company’s operations and, if needed, postpone non-essential capital expenditures, reduce operating costs, and substantially reduce discretionary spending .
Revenue Recognition	Revenue Recognition In accordance with FASB ASC Topic No. 606, Revenue from Contracts with Customers, W e transfer software licenses to our customers on a royalty free, non-exclusive, non-transferrable, limited use basis during the term of the agreement. In some instances, we perform customization services to ensure the softwar e operates within our customers’ operating platforms as well as the operating platforms of the mobile devices used by their end customers, before transferring the license. Revenue related to these services is recognized at a point in time upon acceptance of the software license by the customer. We also earn usage based revenue on our platforms. Usage based revenue is generated based on active licenses used by our customers’ end customers, the provision of hosting services, revenue share based on media placements on our platform, and use of our cloud based services. We recognize our usage based revenue when we have completed our performance obligation and have the right to invoice the customer. This revenue is generally recognized monthly or quarterly. Finally, in this segment, we ratably recognize revenue over the contract period when customers pay in advance of our service delivery . On February 12, 2020, we acquired certain assets from Circle (as defined in Note 3 below), including a source code license to Circle’s parental control software solution and two customer contracts. Pursuant to these contracts, the customer parties thereto license the parental control software solution for distribution to their respective subscribers in designated markets. In each case, the contracts allow the customer to take possession of the software solution and to host it on their platform or with an independent third party hosting service provider without significant cost. We also provide significant services that are required by the customer to ensure they have the utility of the license. As the license to the software solution and the services we provide are highly interrelated, we have concluded that the license and our services are a single performance obligation. The license fee is earned and recognized on a pro-rata basis over the contract term based on our customer’s continued use of the license and our services. We also provide consulting services to develop customer-specified functionality that is generally not on our software development roadmap. We recognize revenue from our consulting services upon delivery and acceptance by the customer of our software enhancements and upgrades. For certain customers we provide maintenance and technology support services for which the customer either pays upfront or as we provide the services. When the customer pays upfront, we record the payments as contract liabilities and recognize revenue ratably over the contract period as this is our stand ready performance obligation that is satisfied ratably over the maintenance and technology services period. We receive upfront payments from customers from services to be provided under our ViewSpot® contracts. The advance receipts are deferred and subsequently recognized ratably over the contract period. We also provide consulting services to configure ad hoc targeted promotional content for our customers upon request. These requests are driven by our customers’ marketing initiatives and tend to be short term “bursts” of activity. We recognize these revenues upon delivery of the configured promotional content to the cloud platform.
Fair Value Measurements	Fair Value Measurements The Company measures and discloses fair value measurements as required by FASB ASC Topic No. 820, Fair Value Measurements and Disclosures Fair value is an exit price, representing the amount that would be received to sell an asset, or paid to transfer a liability, in an orderly transaction between market participants. As such, fair value is a market-based measurement that is determined based on assumptions that market participants would use in pricing an asset or a liability. As a basis for considering such assumptions, the FASB establishes a three-tier value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value: • Level 1 - Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets • Level 2 - Include other inputs that are directly or indirectly observable in the marketplace • Level 3 - Unobservable inputs which are supported by little or no market activity The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. As required by FASB ASC Topic No. 820, we measure our cash and cash equivalents at fair value. Our cash equivalents are classified within Level 1 by using quoted market prices utilizing market observable inputs. As required by FASB ASC Topic No. 350, for goodwill and other intangibles impairment analysis, we utilize fair value measurements which are categorized within Level 3 of the fair value hierarchy.
Goodwill and Intangible Assets	In accordance with FASB ASC Topic No. 350, Intangibles-Goodwill and Other During the first quarter of 2021, we received a customer contract termination notice related to a customer contract acquired in the acquisition of Circle’s operator business (as discussed in Note 3), which was otherwise set to expire in the second quarter of 2024. The contract was terminated effective April 15, 2021 ; however, in accordance with its terms, we continue to deliver wind-down services under the contract. While the terms of the contract allow for a wind-down period of up to two years post termination, the Company expects to continue services under this contract through the second quarter of 2022. The Company determined the customer contract should be accounted for under the contract modification guidance in Topic 606 . As a result, the Company recognized deferred revenue of $ 0.6 million which was being amortized over the customer contract term and will amortize the remaining $ 0.3 million over the remaining service period. Additionally, the Company reviewed its customer contract intangible asset associated with this customer contract and determined that the carrying value was in excess of it s fair value. Accordingly, the Company recorded a $ 1.5 million impairment charge within “selling and marketing expenses” in the consolidated statements of operations during the three months ended March 31, 2021 and will amortize the remaining $ 0.4 million over the remaining service period.
Earnings Per Share	Earnings Per Share The Company calculates earnings per share (“EPS”) as required by FASB ASC Topic No. 260, Earnings Per Share The following table sets forth the details of basic and diluted earnings per share: For the Three Months Ended March 31, 2021 2020 (unaudited, in thousands, except per share amounts) Numerator: Net income (loss) $ (3,225 ) $ 2,045 Denominator: Weighted average shares outstanding – basic 43,368 39,482 Potential common shares – options / warrants (treasury stock method) — 2,712 Weighted average shares outstanding – diluted 43,368 42,194 Shares excluded (anti-dilutive) 2,559 77 Net earnings (loss) per common share: Basic $ (0.07 ) $ 0.05 Diluted $ (0.07 ) $ 0.05
Segment Information	Segment Information Public companies are required to report financial and descriptive information about their reportable operating segments as required by FASB ASC Topic No. 280, Segment Reporting
Income Taxes	We account for income taxes as required by FASB ASC Topic No. 740, Income Taxes

Acquisitions (Tables)

Acquisitions (Tables)	3 Months Ended
	Mar. 31, 2021
Business Combinations [Abstract]
Summary of Consideration Paid for Acquisitions	The following table summarizes the consideration paid for the Circle acquisition in 2020 (unaudited, in thousands): Fair value of assets acquired $ 14,966 Fair value of liabilities assumed 1,466 Total purchase price $ 13,500 Components of purchase price: Cash $ 13,500 Total purchase price $ 13,500
Summary of Allocation of Purchase Price	The Company’s allocation of the purchase price is summarized as follows (unaudited, in thousands): Assets: Inventory, net $ 14 Intangible assets 10,483 Goodwill 4,469 Total assets $ 14,966 Liabilities: Deferred revenue $ 1,290 Amounts due to seller 176 Total liabilities 1,466 Total purchase price $ 13,500
Summary of Unaudited Proforma Results of Operation	Unaudited pro forma results of operations for the three months ended March 31, 2021 and 2020 are included below as if the Circle acquisition occurred on January 1, 2019. This summary of the unaudited pro forma results of operations is not necessarily indicative of what the Company’s results of operations would have been had the operator business of Circle been acquired at the beginning of 2019, nor does it purport to represent results of operations for any future periods. For the Three Months Ended March 31, 2021 2020 (unaudited, in thousands, except per share amounts) Revenues $ 11,381 $ 13,789 Net income (loss) (3,225 ) 2,105 Earnings (loss) per share: Basic $ (0.07 ) $ 0.05 Diluted $ (0.07 ) $ 0.05

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Details of Basic and Diluted Earnings Per Share	The following table sets forth the details of basic and diluted earnings per share: For the Three Months Ended March 31, 2021 2020 (unaudited, in thousands, except per share amounts) Numerator: Net income (loss) $ (3,225 ) $ 2,045 Denominator: Weighted average shares outstanding – basic 43,368 39,482 Potential common shares – options / warrants (treasury stock method) — 2,712 Weighted average shares outstanding – diluted 43,368 42,194 Shares excluded (anti-dilutive) 2,559 77 Net earnings (loss) per common share: Basic $ (0.07 ) $ 0.05 Diluted $ (0.07 ) $ 0.05

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2021
Revenue From Contract With Customer [Abstract]
Schedule of Revenues on Disaggregated Basis	Revenues on a disaggregated basis are as follows (in thousands): For the Three Months Ended March 31, 2021 2020 (unaudited) License and service fees $ 1,587 $ 555 Hosted environment usage fees 4,141 4,549 Cloud based usage fees 4,963 7,647 Consulting services and other 690 571 Total revenues $ 11,381 $ 13,322

Segment, Customer Concentrati_2

Segment, Customer Concentration and Geographical Information (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Wireless Revenues by Product	The following table presents the Wireless revenues by product (in thousands): For the Three Months Ended March 31, 2021 2020 (unaudited) SafePath $ 6,267 $ 7,848 CommSuite 4,128 4,539 ViewSpot 930 745 Other 56 83 Total wireless revenues $ 11,381 $ 13,215
Company Revenue in Different Geographic Locations	Revenues attributed to the geographic location of the customers’ bill-to address were as follows (in thousands): For the Three Months Ended March 31, 2021 2020 (unaudited) Americas $ 10,144 $ 13,304 EMEA 1,237 8 Asia Pacific — 10 Total revenues $ 11,381 $ 13,322

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Summary of Operating Lease Cost	Operating lease cost consists of the following (in thousands): For the Three Months Ended March 31, 2021 2020 Lease cost $ 558 $ 527 Sublease income (151 ) (151 ) Total lease cost $ 407 $ 376
Summary of Maturity of Operating Lease Liabilities	The maturity of operating lease liabilities is presented in the following table (in thousands): As of March 31, 2021 (unaudited) 2021 $ 1,386 2022 1,615 2023 1,600 2024 1,226 2025 867 Thereafter 291 Total lease payments 6,985 Less imputed interest (931 ) Present value of lease liabilities $ 6,054
Summary of Additional Information Relating to Company's Operating Leases	Additional information relating to the Company’s operating leases follows: As of March 31, 2021 (unaudited) Weighted average remaining lease term (years) 4.27 Weighted average discount rate 6.75 %

Accounting Policies - Additiona

Accounting Policies - Additional Information (Details)	Feb. 12, 2020Customer
Circle [Member]
Business Acquisition [Line Items]
Number of customer contracts	2

Acquisitions - Summary of Consi

Acquisitions - Summary of Consideration Paid for Acquisitions (Detail) - Circle [Member] $ in Thousands	Feb. 12, 2020USD ($)
Business Acquisition [Line Items]
Fair value of assets acquired	$ 14,966
Fair value of liabilities assumed	1,466
Total purchase price	13,500
Components of purchase price:
Cash	13,500
Total purchase price	$ 13,500

Acquisitions - Summary of Alloc

Acquisitions - Summary of Allocation of Purchase Price (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020	Feb. 12, 2020
Business Acquisition [Line Items]
Goodwill	$ 12,266	$ 12,266
Circle [Member]
Business Acquisition [Line Items]
Inventory, net			$ 14
Intangible assets			10,483
Goodwill			4,469
Total assets			14,966
Deferred revenue			1,290
Amounts due to seller			176
Total liabilities			1,466
Total purchase price			$ 13,500

Acquisitions - Additional Infor

Acquisitions - Additional Information (Detail)	Feb. 12, 2020Customer
Circle [Member]
Business Acquisition [Line Items]
Number of customer contracts	2

Acquisitions - Summary of Unaud

Acquisitions - Summary of Unaudited Proforma Results of Operation (Detail) - Circle [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Business Acquisition [Line Items]
Revenues	$ 11,381	$ 13,789
Net income (loss)	$ (3,225)	$ 2,105
Earnings (loss) per share:
Basic	$ (0.07)	$ 0.05
Diluted	$ (0.07)	$ 0.05

Goodwill and Intangible Assets

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 0	$ 0
Circle [Member]
Goodwill [Line Items]
Contract termination date	Apr. 15, 2021
Deferred revenue, recognized	$ 600,000
Amortization of intangible assets remaining	300,000
Finite lived intangible assets remaining amortization	400,000
Circle [Member] | Selling and Marketing Expense [Member]
Goodwill [Line Items]
Impairment charge of intangible assets	$ 1,500,000

Earnings Per Share - Details of

Earnings Per Share - Details of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net income (loss)	$ (3,225)	$ 2,045
Denominator:
Weighted average shares outstanding – basic	43,368	39,482
Potential common shares – options / warrants (treasury stock method)		2,712
Weighted average shares outstanding – diluted	43,368	42,194
Shares excluded (anti-dilutive)	2,559	77
Net earnings (loss) per common share:
Basic	$ (0.07)	$ 0.05
Diluted	$ (0.07)	$ 0.05

Stock-Based Compensation - Addi

Stock-Based Compensation - Additional Information (Detail) - 2015 Omnibus Equity Incentive Plan [Member]	3 Months Ended
	Mar. 31, 2021shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future grants	3,900,000
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, granted	1,000,000
Incentive Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incentive stock options, exercisable	10,000

Revenues - Additional Informati

Revenues - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Disaggregation Of Revenue [Line Items]
Deferred revenue	$ 1,027	$ 1,572
Circle [Member]
Disaggregation Of Revenue [Line Items]
Deferred revenue	$ 900
Contract termination date	Apr. 15, 2021
Deferred revenue, recognized	$ 600
Amortization of intangible assets remaining	300
Finite lived intangible assets remaining amortization	400
Circle [Member] | Selling and Marketing Expense [Member]
Disaggregation Of Revenue [Line Items]
Impairment charge of intangible assets	$ 1,500

Revenues - Schedule of Revenues

Revenues - Schedule of Revenues on Disaggregated Basis (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation Of Revenue [Line Items]
Revenues	$ 11,381	$ 13,322
Wireless [Member]
Disaggregation Of Revenue [Line Items]
Revenues	11,381	13,215
Wireless [Member] | License and Service Fees [Member]
Disaggregation Of Revenue [Line Items]
Revenues	1,587	555
Wireless [Member] | Hosted Environment Usage Fees [Member]
Disaggregation Of Revenue [Line Items]
Revenues	4,141	4,549
Wireless [Member] | Cloud Based Usage Fees [Member]
Disaggregation Of Revenue [Line Items]
Revenues	4,963	7,647
Wireless [Member] | Consulting Services and Other [Member]
Disaggregation Of Revenue [Line Items]
Revenues	$ 690	$ 571

Segment, Customer Concentrati_3

Segment, Customer Concentration and Geographical Information - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2021CustomerBusiness_UnitLocation	Mar. 31, 2020CustomerLocation
Revenue, Major Customer [Line Items]
Number of primary business units | Business_Unit	1
Number of customers concentrated | Customer	3	1
Number of geographic locations | Location	3	3
Customer Concentration Risk | Revenues [Member] | Two Customer [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	91.00%
Customer Concentration Risk | Revenues [Member] | One Customer [Member]
Revenue, Major Customer [Line Items]
Concentration percentage		91.00%
Customer Concentration Risk | Accounts Receivable [Member] | Two Customer [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	80.00%
Customer Concentration Risk | Accounts Receivable [Member] | One Customer [Member]
Revenue, Major Customer [Line Items]
Concentration percentage		84.00%
Customer Concentration Risk | Minimum [Member] | Revenues [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	10.00%
Customer Concentration Risk | Minimum [Member] | Accounts Receivable [Member]
Revenue, Major Customer [Line Items]
Concentration percentage	10.00%

Segment, Customer Concentrati_4

Segment, Customer Concentration and Geographical Information - Wireless Revenues by Product (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Total revenues	$ 11,381	$ 13,322
Wireless [Member]
Revenue from External Customer [Line Items]
Total revenues	11,381	13,215
Wireless [Member] | SafePath [Member]
Revenue from External Customer [Line Items]
Total revenues	6,267	7,848
Wireless [Member] | CommSuite [Member]
Revenue from External Customer [Line Items]
Total revenues	4,128	4,539
Wireless [Member] | ViewSpot [Member]
Revenue from External Customer [Line Items]
Total revenues	930	745
Wireless [Member] | Other [Member]
Revenue from External Customer [Line Items]
Total revenues	$ 56	$ 83

Segment, Customer Concentrati_5

Segment, Customer Concentration and Geographical Information - Company Revenue in Different Geographic Locations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Total revenues	$ 11,381	$ 13,322
Americas [Member] | Reportable Geographical Components [Member]
Revenue from External Customer [Line Items]
Total revenues	10,144	13,304
EMEA [Member] | Reportable Geographical Components [Member]
Revenue from External Customer [Line Items]
Total revenues	$ 1,237	8
Asia Pacific [Member] | Reportable Geographical Components [Member]
Revenue from External Customer [Line Items]
Total revenues		$ 10

Leases - Additional Information

Leases - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Operating lease description	The Company leases office space and equipment, and certain office space is subleased. Management determines if a contract is a lease at the inception of the arrangement and reviews all options to extend, terminate, or purchase its right-of-use assets at the inception of the lease and accounts for these options when they are reasonably certain of being exercised.

Leases - Summary of Operating L

Leases - Summary of Operating Lease Cost (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Lease Cost [Abstract]
Lease cost	$ 558	$ 527
Sublease income	(151)	(151)
Total lease cost	$ 407	$ 376

Leases - Summary of Maturity of

Leases - Summary of Maturity of Operating Lease Liabilities (Detail) $ in Thousands	Mar. 31, 2021USD ($)
Operating Lease Liabilities Payments Due [Abstract]
2021	$ 1,386
2022	1,615
2023	1,600
2024	1,226
2025	867
Thereafter	291
Total lease payments	6,985
Less imputed interest	(931)
Present value of lease liabilities	$ 6,054

Leases - Summary of Additional

Leases - Summary of Additional Information Relating to Company's Operating Leases (Detail)	Mar. 31, 2021
Leases [Abstract]
Weighted average remaining lease term (years)	4 years 8 months 12 days
Weighted average discount rate	6.75%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Operating Loss Carryforwards [Line Items]
Cumulative loss period	5 years
Valuation allowance	$ 49,400,000
Outstanding tax audit		$ 0
State [Member]
Operating Loss Carryforwards [Line Items]
Federal income tax returns subject to examination description	State income tax returns are subject to examination for a period of three to four years after filing

Equity Transactions - Additiona

Equity Transactions - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	Mar. 15, 2021	Mar. 31, 2021
Class Of Stock [Line Items]
Purchase price		$ 59,898
Common Stock [Member]
Class Of Stock [Line Items]
Number of common shares issued		9,521,000
Purchase price		$ 10
IPO
Class Of Stock [Line Items]
Proceeds from initial public offering	$ 59,900
IPO | Common Stock [Member]
Class Of Stock [Line Items]
Number of common shares issued	9,520,787
Shares issued, price per share	$ 6.85
Purchase price	$ 65,200

Subsequent Events - Additional

Subsequent Events - Additional Information (Detail) - Avast PLC Family Safety Mobile Business [Member] - Subsequent Event [Member] $ in Millions	Apr. 16, 2021USD ($)shares
Subsequent Event [Line Items]
Aggregate purchase price	$ 66
Escrow amount	5
Cash payments to acquire business, excluding working capital adjustments and other closing adjustments	$ 51.1
Common Stock [Member]
Subsequent Event [Line Items]
Issuance of common stock in connection with acquisition | shares	1,460,131
Issuance of common stock value in connection with acquisition	$ 8.4