Smith Micro Software (SMSI) 10-Q 14 Nov 22 2022 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2022	Nov. 02, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	001-35525
Entity Registrant Name	SMITH MICRO SOFTWARE, INC.
Entity Incorporation, State or Country Code	DE
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
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	SMSI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		56,237,081
Entity Central Index Key	0000948708
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 19,001	$ 16,078
Accounts receivable, net of allowance for doubtful accounts of $3 and $2 (2022 and 2021, respectively)	9,479	10,590
Prepaid expenses and other current assets	1,087	1,988
Total current assets	29,567	28,656
Equipment and improvements, net	1,767	2,698
Right-of-use assets	4,709	4,866
Other assets	547	620
Intangible assets, net	37,865	42,631
Goodwill	35,041	35,041
Total assets	109,496	114,512
Current liabilities:
Accounts payable	3,625	3,301
Accrued payroll and benefits	3,342	4,055
Current operating lease liabilities	1,402	1,400
Other current liabilities	961	612
Current portion of convertible notes payable	3,435	0
Total current liabilities	12,765	9,368
Non-current liabilities:
Long term portion of convertible notes payable	3,873	0
Warrant and derivative liabilities	6,121	0
Operating lease liabilities	3,237	4,467
Deferred tax liabilities, net	117	117
Total non-current liabilities	13,348	4,584
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 56,260,670 and 54,259,390 shares issued and outstanding (2022 and 2021, respectively)	56	54
Additional paid-in capital	356,907	352,779
Accumulated comprehensive deficit	(273,580)	(252,273)
Total stockholders’ equity	83,383	100,560
Total liabilities and stockholders' equity	$ 109,496	$ 114,512

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 3	$ 2
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	56,260,670	54,259,390
Common stock, shares outstanding (in shares)	56,260,670	54,259,390

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenues	$ 11,699	$ 16,443	$ 37,108	$ 43,743
Cost of revenues	3,629	3,692	10,882	8,595
Gross profit	8,070	12,751	26,226	35,148
Operating expenses:
Selling and marketing	2,986	3,067	9,692	8,428
Research and development	7,523	7,123	23,139	19,060
General and administrative	4,333	5,143	12,406	13,746
Change in fair value of contingent consideration	0	12,864	0	12,864
Amortization of intangible assets	1,545	3,015	4,766	7,958
Total operating expenses	16,387	31,212	50,003	62,056
Operating loss	(8,317)	(18,461)	(23,777)	(26,908)
Other income (expense):
Change in fair value of warrant and derivative liabilities	(3,457)	0	(3,457)	0
Interest (expense) income, net	(896)	1	(898)	25
Other (expense) income, net	(29)	(2)	(12)	7
Loss before provision for income taxes	(5,785)	(18,462)	(21,230)	(26,876)
Provision for income tax expense	27	145	77	159
Net loss	$ (5,812)	$ (18,607)	$ (21,307)	$ (27,035)
Loss per share:
Basic (in dollars per share)	$ (0.10)	$ (0.34)	$ (0.39)	$ (0.54)
Diluted (in dollars per share)	$ (0.10)	$ (0.34)	$ (0.39)	$ (0.54)
Weighted average shares outstanding:
Basic (in shares)	55,722	53,939	55,140	50,147
Diluted (in shares)	55,722	53,939	55,140	50,147

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Comprehensive Deficit
BALANCE, at beginning of period (in shares) at Dec. 31, 2020		41,233,000
BALANCE, at beginning of period at Dec. 31, 2020	$ 58,716	$ 41	$ 279,905	$ (221,230)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and ESPP	61		61
Restricted stock grants, net of cancellations (in shares)		1,222,000
Restricted stock grants, net of cancellations	3,561	$ 1	3,560
Employee stock purchase plan (in shares)		10,000
Employee stock purchase plan	37		37
Cancellation of shares for payment of withholding tax (in shares)		(298,000)
Cancellation of shares for payment of withholding tax	(1,736)		(1,736)
Common shares issued in stock offering, net offering costs (in shares)		9,521,000
Common shares issued in stock offering, net of offering costs	59,711	$ 10	59,701
Common shares issued in connection with Avast Family Safety Mobile acquisition, net (in shares)		1,460,000
Common shares issued in connection with Avast Family Safety Mobile acquisition, net	8,381	$ 1	8,380
Exercise of common stock warrants (in shares)		1,408,000
Exercise of common stock warrants	2,066	$ 2	2,064
Exercise of stock options (in shares)		18,000
Exercise of stock options	58		58
Net loss	(27,035)			(27,035)
BALANCE, at end of period (in shares) at Sep. 30, 2021		54,574,000
BALANCE, at end of period at Sep. 30, 2021	103,820	$ 55	352,030	(248,265)
BALANCE, at beginning of period (in shares) at Jun. 30, 2021		53,576,000
BALANCE, at beginning of period at Jun. 30, 2021	119,473	$ 54	349,077	(229,658)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and ESPP	22		22
Restricted stock grants, net of cancellations (in shares)		152,000
Restricted stock grants, net of cancellations	1,305	$ 0	1,305
Employee stock purchase plan (in shares)		5,000
Employee stock purchase plan	27		22
Cancellation of shares for payment of withholding tax (in shares)		(86,000)
Cancellation of shares for payment of withholding tax	(427)		(427)
Exercise of common stock warrants (in shares)		924,000
Exercise of common stock warrants	2,025	$ 1	2,024
Exercise of stock options (in shares)		3,000
Exercise of stock options	7		7
Net loss	(18,607)			(18,607)
BALANCE, at end of period (in shares) at Sep. 30, 2021		54,574,000
BALANCE, at end of period at Sep. 30, 2021	$ 103,820	$ 55	352,030	(248,265)
BALANCE, at beginning of period (in shares) at Dec. 31, 2021	54,259,390	54,259,000
BALANCE, at beginning of period at Dec. 31, 2021	$ 100,560	$ 54	352,779	(252,273)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and ESPP	66		66
Restricted stock grants, net of cancellations (in shares)		1,192,000
Restricted stock grants, net of cancellations	3,783	$ 1	3,782
Employee stock purchase plan (in shares)		17,000
Employee stock purchase plan	40		40
Cancellation of shares for payment of withholding tax (in shares)		(347,000)
Cancellation of shares for payment of withholding tax	(1,084)		(1,084)
Common shares issued in stock offering, net offering costs (in shares)		1,132,000
Common shares issued in stock offering, net of offering costs	$ 1,309	$ 1	1,308
Exercise of stock options (in shares)	8,000	8,000
Exercise of stock options	$ 16		16
Net loss	$ (21,307)			(21,307)
BALANCE, at end of period (in shares) at Sep. 30, 2022	56,260,670	56,261,000
BALANCE, at end of period at Sep. 30, 2022	$ 83,383	$ 56	356,907	(273,580)
BALANCE, at beginning of period (in shares) at Jun. 30, 2022		55,120,000
BALANCE, at beginning of period at Jun. 30, 2022	86,928	$ 55	354,641	(267,768)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and ESPP	22		22
Restricted stock grants, net of cancellations (in shares)		59,000
Restricted stock grants, net of cancellations	1,074		1,074
Employee stock purchase plan (in shares)		11,000
Employee stock purchase plan	21		21
Cancellation of shares for payment of withholding tax (in shares)		(61,000)
Cancellation of shares for payment of withholding tax	(159)		(159)
Common shares issued in stock offering, net offering costs (in shares)		1,132,000
Common shares issued in stock offering, net of offering costs	1,309	$ 1	1,308
Net loss	$ (5,812)			(5,812)
BALANCE, at end of period (in shares) at Sep. 30, 2022	56,260,670	56,261,000
BALANCE, at end of period at Sep. 30, 2022	$ 83,383	$ 56	$ 356,907	$ (273,580)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Operating activities:
Net loss	$ (21,307)	$ (27,035)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	5,751	8,872
Non-cash lease expense	157	819
Non-cash transaction costs including amortization	1,422	0
Change in fair value	(3,457)	12,864
Provision for doubtful accounts	0	(3)
Provision for excess and obsolete inventory	0	(97)
Stock based compensation	3,849	3,622
Loss on disposal of assets	31	0
Changes in operating accounts:
Accounts receivable	1,108	5,951
Prepaid expenses and other assets	883	(199)
Accounts payable and accrued liabilities	(2,754)	(1,648)
Other liabilities	(161)	(871)
Net cash (used in) provided by operating activities	(14,478)	2,275
Investing activities:
Acquisitions, net	0	(56,865)
Capital expenditures, net	(85)	(738)
Other investing activities	94	74
Net cash provided by (used in) investing activities	9	(57,529)
Financing activities:
Proceeds from notes and warrants offering	15,000	0
Proceeds from stock and warrants offering	3,000	59,711
Stock, notes, and warrants offering costs	(1,227)	0
Proceeds from exercise of common stock warrants	0	2,066
Proceeds from financing arrangements	1,541	0
Repayments of financing arrangements	(978)	0
Other financing activities	56	95
Net cash provided by financing activities	17,392	61,872
Net increase in cash and cash equivalents	2,923	6,618
Cash and cash equivalents, beginning of period	16,078	25,754
Cash and cash equivalents, end of period	19,001	32,372
Supplemental disclosures of cash flow information:
Cash paid for income taxes	253	102
Non-cash investing and financing activities:
Issuance of common stock in connection with acquisition	0	8,381
Derivative and warrants in connection with notes and stock offerings	$ 9,578	$ 0

The Company

The Company	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
The Company	The Company Smith Micro Software, Inc. (“Smith Micro” or “the Company”) 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, the Company strives to enrich today’s connected lifestyles while creating new opportunities to engage consumers via smartphones and consumer Internet of Things (“IoT”) devices. Smith Micro’s 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 various product sets. Smith Micro’s solution portfolio is comprised of proven products that enable its customers to provide: • In-demand digital services that connect today’s digital lifestyle, including family location services, parental controls, and consumer IoT devices to mobile consumers worldwide; • Easy visual access to voice messages on mobile devices through visual voicemail and voice-to-text transcription functionality; and • Strategic, consistent, and measurable digital demonstration experiences that educate retail shoppers, create awareness of products and services, drive in-store sales, and optimize retail experiences with actionable analytics derived from in-store customer behavior.

Accounting Policies

Accounting Policies	9 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Accounting Policies	Accounting Policies Basis of Presentation The accompanying interim consolidated balance sheet as of September 30, 2022, and the related consolidated statements of operations, and stockholders’ equity for the three and nine months ended September 30, 2022 and 2021 and the statement of cash flows for the nine months ended September 30, 2022 and 2021, 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 of America (“US 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 the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed with the SEC on March 11, 2022. Intercompany balances and transactions have been eliminated in consolidation. Operating results for the three and nine months ended September 30, 2022 are not necessarily indicative of the results that may be expected for any other interim period or for the fiscal year ending December 31, 2022. New Accounting Pronouncements In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." This updated guidance sets forth a current expected credit loss model based on expected losses. Under this model, an entity recognizes an allowance for expected credit losses based on historical experience, current conditions and forecasted information rather than the current methodology of delaying recognition of credit losses until it is probable a loss has been incurred. This guidance becomes effective for the Company beginning in interim periods starting in fiscal year 2023. The impact of adopting the new standard is not anticipated to have a material impact on the Company's consolidated financial statements. In August 2020, the FASB issued ASU 2020-06, Debt with Conversion and Other Options and Derivatives and Hedging: Accounting for Convertible Instruments and Contracts in an Entity's Own Equity. This ASU simplifies accounting for convertible instruments whereby embedded conversion features that are not accounted for as derivatives under Accounting Standards Codification 815 or that do not result in substantial premiums accounted for as paid-in capital are no longer separated from the host contract. Under ASU 2020-06, entities are required to use the if-converted method to calculate the impact of convertible instruments on diluted earnings per share. The if-converted method assumes share settlement of the instrument, which increases the number of potentially dilutive securities used to calculate diluted EPS. This ASU also adds several new disclosure requirements. The Company adopted this ASU in the current period and there was no impact to the prior period. Reclassifications Certain reclassification have been made to the prior year financial statements to conform to the current presentation.

Debt and Fair Value of Financia

Debt and Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Debt and Fair Value of Financial Instruments	Debt and Fair Value of Financial Instruments Notes and Warrants Offering On August 11, 2022, the Company entered into a Securities Purchase Agreement ("SPA") with certain accredited investors, and, pursuant to the SPA, sold a new series of senior secured convertible notes (the "Notes") with an aggregate original principal amount of $15.0 million and an initial conversion price of $3.35 per share, subject to adjustment as described in the Notes, and warrants to acquire up to an aggregate amount of 2,238,806 additional shares of the Company’s common stock (the "Warrants" and together with the Notes, the "Notes and Warrants Offering"). The Warrants are exercisable immediately at an exercise price of $3.35 per share and expire 5 years from the date of issuance on August 11, 2027. There is no established public trading market for the Warrants and the Company does not intend to list the Warrants on any national securities exchange or nationally recognized trading system. The closing of the Notes and Warrants Offering occurred on August 11, 2022. The Notes accrue compounding interest at the rate of 6.0% per annum, which is payable in cash or shares of the Company's common stock at the Company's option, in arrears quarterly in accordance with the terms of the Notes. Upon the occurrence and during the continuance of an Event of Default (as defined in the Notes), the Notes will accrue interest at the rate of 15.0% per annum. Upon conversion and other designated events, holders of the Notes are also entitled to receive an interest make-whole payment. Upon a redemption due to a Change in Control (as defined in the Notes), holders of the Notes are entitled to cash settlement. The Notes mature on December 31, 2023. The Warrants were assessed and concluded to be liability instruments due to cash settlement provisions, and as a result all changes in the fair value of warrants will be recognized in the Company's consolidated statements of operations until they are either exercised or expire. The Warrants are not traded in an active securities market and, as such, the estimated fair value at inception was $3.8 million, determined utilizing a Black-Scholes option pricing model and is reflected on the balance sheet line Warrant and derivative liabilities and as a discount on the Notes. The Notes contain a make-whole feature and a redemption right payable in cash upon change in control feature which are both embedded derivatives that meet the criteria to be bifurcated and carried at fair value. These are classified as in the balance sheet line Warrant and derivative liabilities and as a discount on the Notes, with subsequent adjustments to fair value each reporting period with a charge to earnings. These derivatives are initially recognized at a fair value of $4.2 million based on the net present value of the expected cash flows and a Black-Scholes option pricing model, respectively, with the following assumptions being utilized: Convertibles Notes Derivative August 11, 2022 September 30, 2022 Common stock market price $ 3.04 $ 2.26 Risk-free interest rate 3.28 % 3.89 % Expected dividend yield — — Expected term (in years) 1.39 1.25 Expected volatility 56.32 % 57.73 % The Notes also contain certain other conversion and redemption features which represent embedded derivatives requiring bifurcation from the debt host instrument and fair value reported at each reporting period; however the key inputs in valuing these instruments include the likelihood that events triggering these provisions will occur during the term of the Notes. The Company has assessed the likelihood of these events occurring as remote at issuance and again at September 30, 2022 such that no value is ascribed to the instruments. Given that the warrants and the derivatives are liability instruments that are measured at fair value, the transaction proceeds were allocated first to the warrants and derivatives, with the residual to the Notes. Transaction issuance costs for the Notes and Warrants Offering were allocated in the same manner, with $0.5 million relating to the warrants and derivatives being expensed immediately within General and administrative expenses. Deferred financing costs for the Notes and Warrant Offering totaled $0.5 million and are reported net of accumulated amortization as a deduction from the face amount of the debt. Amortization of the deferred financing costs and discount is reported as a component of interest expense and is computed using the effective interest method over the expected term of the debt. In the Notes and Warrant Offering, the Company raised net cash proceeds of $14.0 million. During the three and nine month period ended September 30, 2022, the Company recognized interest expense of $0.9 million on the Notes and related instruments utilizing the effective interest rate of 155%, which includes amortization of debt issuance costs of $0.1 million, amortization of discount of $0.7 million, and contractual interest of $0.1 million. The balance of the Notes as of September 30, 2022 is as follows (unaudited, in thousands): Current Long term Total Gross Balance as of September 30, 2022 $ 10,500 $ 4,500 $ 15,000 Unamortized Discount (6,687) (585) $ (7,272) Unamortized Issuance Costs (378) (42) $ (420) Net Balance as of September 30, 2022 $ 3,435 $ 3,873 $ 7,308 The Notes contain certain customary affirmative and negative covenants regarding the incurrence of indebtedness, acquisition and investment transactions, the existence of liens, the repayment of indebtedness, the payment of cash in respect of dividends, distributions or redemptions, and the transfer of assets, among other matters. As of September 30, 2022, the Company was in compliance with all covenants. Warrant Liabilities As further discussed above, on August 11, 2022, warrants to purchase 2,238,806 shares of common stock were issued with an exercise price of $3.35 per share in conjunction with the Notes and Warrants Offering, at an initial fair value of $3.8 million. As further discussed in Note 4, Additional Warrants (as defined in Note 4 below) to purchase 1,132,075 shares of common stock were issued with an exercise price of $2.65 per share in conjunction with the Stock and Additional Warrants Offering (as defined in Note 4 below). All changes in the fair value of these warrant liabilities are recognized in the Company's consolidated statements of operations until they are either exercised or expire. The warrants are not traded in an active securities market and, as such, the estimated fair value at inception and again at September 30, 2022 was determined by using a Black-Scholes option pricing model that utilizes assumptions noted in the following table. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant. Expected volatility is based on the historical volatility over the expected term of the warrants. The Company has no reason to believe future volatility over the expected remaining life of the warrants is likely to differ materially from historical volatility. Expected life is based on the contractual term of the warrants. Below are the specific assumptions utilized: Warrants Additional Warrants August 11, 2022 September 30, 2022 August 12, 2022 September 30, 2022 Common stock market price $ 3.04 $ 2.26 $ 2.34 $ 2.26 Risk-free interest rate 3.03 % 3.70 % 3.03 % 3.70 % Expected dividend yield — — — — Expected term (in years) 5.00 4.87 5.50 5.37 Expected volatility 66.85 % 66.51 % 70.55 % 68.50 % Fair Value of Financial Instruments The warrants and derivative instruments are measured as Level 3 instruments in the fair value hierarchy as per FASB ASC Topic No. 820, Fair Value Measurements and Disclosures for fair value measurements of items that are recognized or disclosed at fair value in the financial statements. Fair value is an exit price, representing the amount that would be received upon the sale of an asset or the amount that would be 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 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 in measuring fair value. As required by FASB Accounting Standards Codification ("ASC") Topic No. 825, Financial Instruments , an entity can choose to measure at fair value many financial instruments and certain other items that are not currently required to be measured at fair value. Subsequent changes in fair value for designated items are required to be reported in earnings in the current period. This topic also establishes presentation and disclosure requirements for similar types of assets and liabilities measured at fair value. The following table presents information about the financial liabilities that are measured at fair value on a recurring basis at September 30, 2022 (in thousands): Level 1 Level 2 Level 3 Total Notes and Warrants Offering Derivatives — — $ 2,173 $ 2,173 Notes and Warrants Offering Warrants — — 2,462 2,462 Stock and Warrants Offering Warrants — — 1,486 1,486 Total at September 30, 2022 — — $ 6,121 $ 6,121 The following table presents the changes in the fair value for the nine months ended September 30, 2022 (in thousands): Notes and Warrants Offering Derivatives Notes and Warrants Offering Warrants Stock and Warrants Offering Warrants Total Measurement at December 31, 2021 $ — $ — $ — $ — Additions 4,195 3,793 1,590 9,578 Change in Fair Value (2,022) (1,331) (104) (3,457) Measurement at September 30, 2022 $ 2,173 $ 2,462 $ 1,486 $ 6,121 Credit Facility

Goodwill and Intangible Assets

Goodwill and Intangible Assets	9 Months Ended
	Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets In accordance with FASB ASC Topic No. 350, Intangibles-Goodwill and Other , Smith Micro reviews the recoverability of the carrying value of goodwill at least annually or whenever events or circumstances indicate a potential impairment. The Company’s impairment testing will be performed annually on December 31. Recoverability of goodwill is determined by comparing the fair value of the Company’s reporting unit to the carrying value of the underlying net assets in the reporting unit. If the fair value of a reporting unit is determined to be less than the carrying value of its net assets, goodwill is deemed impaired and an impairment loss is recognized to the extent that the carrying value of goodwill exceeds the difference between the fair value of the reporting unit and the fair value of its other assets and liabilities. The Company determined that there were no goodwill impairment indicators at September 30, 2022 and December 31, 2021. The components of the Company’s intangible assets were as follows for the periods presented : September 30, 2022 December 31, 2021 (unaudited, in thousands, except for useful life data) (audited, in thousands, except for useful life data) Weighted Average Gross Accumulated Net Book Value Weighted Average Gross Accumulated Net Book Value Purchased technology 7 $ 13,529 $ (5,320) $ 8,209 8 $ 13,529 $ (3,764) $ 9,765 Customer relationships 12 27,960 (4,380) 23,580 13 27,960 (2,816) 25,144 Customer contracts 1 7,000 (5,396) 1,604 2 7,000 (4,441) 2,559 Software license 7 5,419 (1,362) 4,057 9 5,419 (793) 4,626 Non-compete 0 283 (254) 29 1 283 (196) 87 Patents 5 600 (214) 386 5 600 (150) 450 Total $ 54,791 $ (16,926) $ 37,865 $ 54,791 $ (12,160) $ 42,631 The Company amortizes intangible assets over the pattern of economic benefit expected to be generated from the use of the assets, with a total weighted average amortization period of approximately 10 years as of September 30, 2022 and December 31, 2021. As of September 30, 2022, estimated amortization expense for the remainder of 2022 and thereafter was as follows (unaudited, in thousands): Year Ending December 31, Amortization Expense 2022 $ 1,545 2023 5,874 2024 5,635 2025 5,402 2026 5,007 2027 and thereafter 14,402 Total $ 37,865

Earnings Per Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Earnings Per Share	Earnings Per Share The Company calculates earnings per share (“EPS”) as required by FASB ASC Topic No. 260, Earnings Per Share . Basic EPS is calculated by dividing the net income available to common stockholders by the weighted average number of common shares outstanding for the period, excluding common stock equivalents. Diluted EPS is computed by dividing the net income available to common stockholders by the weighted average number of common shares outstanding for the period, plus the weighted average number of dilutive common stock equivalents outstanding for the period determined using the treasury-stock method. For periods with a net loss, the dilutive common stock equivalents are excluded from the diluted EPS calculation. For purposes of this calculation, common stock subject to repurchase by the Company, options, warrants, and convertible notes are considered to be common stock equivalents and are only included in the calculation of diluted earnings per share when their effect is dilutive. The following table sets forth the details of basic and diluted earnings per share (unaudited, in thousands, except per share amounts): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Numerator: Net loss $ (5,812) $ (18,607) $ (21,307) $ (27,035) Denominator: Weighted average shares outstanding – basic 55,722 53,939 55,140 50,147 Potential common shares – options / warrants (treasury stock method) and convertible notes (as if converted method) — — — — Weighted average shares outstanding – diluted 55,722 53,939 55,140 50,147 Shares excluded (anti-dilutive) 8,097 1,279 2,182 1,333 Net loss per common share: Basic $ (0.10) $ (0.34) $ (0.39) $ (0.54) Diluted $ (0.10) $ (0.34) $ (0.39) $ (0.54) The following shares were excluded from the computation of diluted net loss per share as the impact of including those shares would be anti-dilutive (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Convertible notes, as if converted 2,460 — 823 — Outstanding stock options 138 144 143 105 Outstanding warrants 5,499 1,135 1,215 1,228 Total anti-dilutive 8,097 1,279 2,182 1,333

Stock-Based Compensation

Stock-Based Compensation	9 Months Ended
	Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation Stock Plans During the nine months ended September 30, 2022, the Company granted 1.4 million shares of restricted stock under the Company’s 2015 Omnibus Equity Incentive Plan, as amended ("2015 OEIP"), which was approved by Smith Micro’s stockholders on June 18, 2015 and subsequent amendments to the 2015 OEIP to increase the number of shares reserved thereunder were subsequently approved by its stockholders on June 14, 2018 and June 9, 2020. The 2015 OEIP replaced the 2005 Stock Option / Stock Issuance Plan (“2005 Plan”) which was due to expire on July 28, 2015. As of September 30, 2022, there were approximately 2.4 million shares available for future grants under the Company’s 2015 Plan. The outstanding options under the 2005 Plan remain outstanding, but no new grants will be made under the 2005 Plan. The maximum number of shares of the Company’s common stock available for issuance over the term of the 2015 OEIP may not exceed 9,625,000 shares. The 2015 OEIP provides for the issuance of full value awards (restricted stock, performance stock, dividend equivalent right or restricted stock units) and partial value awards (stock options or stock appreciation rights) to employees, non-employee members of the board and consultants. Any full value award settled in shares will be debited as 1.2 shares, and partial value awards settled in shares will be debited as 1.0 shares against the share reserve. The exercise price per share for stock option grants is not to be less than the fair market value per share of the Company’s common stock on the date of grant. The Board of Directors has the discretion to determine the vesting schedule. Stock options may be exercisable immediately or in installments, but generally vest over a four-year period from the date of grant. In the event the holder ceases to be employed by the Company, all unvested stock options terminate, and all vested stock options may be exercised within a period of 90 days following termination. In general, stock options expire ten years from the date of grant. Restricted stock is valued using the closing stock price on the date of the grant. The total value is expensed over the vesting period of 12 to 48 months. Employee Stock Purchase Plan The Company has a shareholder approved employee stock purchase plan (“ESPP”), under which substantially all employees may purchase the Company’s common stock through payroll deductions at a price equal to 85% of the lower of the fair market values of the stock as of the beginning and end of six-month offering periods. An employee’s payroll deductions under the ESPP are limited to 10% of the employee’s compensation and employees may not purchase more than the lesser of $25,000 of stock, or 250 shares, for any purchase period. Additionally, no more than 250,000 shares in the aggregate may be purchased under the ESPP. Stock Compensation Expense The Company accounts for all stock-based payment awards made to employees and directors based on their fair values and recognized as compensation expense over the vesting period using the straight-line method over the requisite service period for each award as required by FASB ASC Topic No. 718, Compensation-Stock Compensation . Compensation Costs Non-cash stock-based compensation expenses related to stock options, restricted stock grants and the ESPP were recorded in the financial statements as follows (unaudited, in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Cost of sales $ — $ — $ 2 $ 1 Sales and marketing 179 238 915 663 Research and development 279 270 808 705 General and administrative 637 818 2,124 2,254 Total non-cash stock compensation expense $ 1,095 $ 1,326 $ 3,849 $ 3,623 As of September 30, 2022, there was approximately $8.5 million unrecognized compensation costs related to non-vested stock options and restricted stock granted under the 2015 OEIP and the 2005 Plan. In the second quarter of 2022 there was a modification of a restricted stock award which accelerated the vesting of that award. As such an additional $0.6 million of stock compensation expense was recorded in Sales and Marketing expense in that period. Stock Options A summary of the Company’s stock options outstanding and related information under the 2015 OEIP and 2005 Plan for the nine months ended September 30, 2022 are as follows (unaudited, in thousands except weighted average exercise price and weighted average remaining contractual life): Shares Weighted Avg. Exercise Price Wtd. Avg. Remaining Contractual Life (Yrs) Aggregate Intrinsic Value Outstanding as of December 31, 2021 194 $ 4.12 $ 218 Granted — $ — $ — Exercised (8) $ 2.15 $ 11 Forfeited (1) $ 5.52 $ — Expired (5) $ 6.80 $ — Outstanding as of September 30, 2022 180 $ 4.12 4.2 $ 12 Vested and expected to vest at September 30, 2022 177 $ 4.10 4.2 $ 12 Exercisable as of September 30, 2022 152 $ 4.00 3.6 $ 10 Restricted Stock Awards A summary of the Company’s restricted stock awards outstanding under the 2015 OEIP and 2005 Plan for the nine months ended September 30, 2022 are as follows (unaudited, in thousands, except weighted average grant date fair value): Shares Weighted average Unvested at December 31, 2021 1,668 $ 5.83 Granted 1,398 $ 3.76 Vested (972) $ 4.92 Canceled and forfeited (208) $ 6.08 Unvested at September 30, 2022 1,886 $ 4.74

Revenues

Revenues	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenues	Revenues Revenue Recognition In accordance with FASB ASC Topic No. 606, Revenue from Contracts with Customers , the Company recognizes the sale of goods and services based on the five-step analysis of transactions as provided in Topic 606, which requires an entity to recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for such goods and services. The Company recognizes sales of goods and services based on the five-step analysis of transactions as provided in Topic 606. For all contracts with customers, the Company first identifies the contract which usually is established when a contract is fully executed by each party and consideration is expected to be received. Next, the Company identifies 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. The Company then determines the transaction price in the arrangement and allocates the transaction price, if necessary, to each performance obligation identified in the contract. The allocation of the transaction price to the performance obligations are 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. The Company evaluates the total amount of variable consideration expected to be earned by using the expected value method, as the Company believes this method represents the most appropriate estimate for this consideration, based on historical service trends, the individual contract considerations, and its best judgment at the time. The Company includes 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. The Company also generates the majority of its revenue on usage-based fees which are variable and depend entirely on customers’ use of perpetual licenses, transactions processed on the Company’s hosted environment, advertisement placements on the Company’s service platform, and activity on the Company’s cloud-based service platform. The Company’s contracts with the mobile network operator (“MNO”) 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. Smith Micro’s cloud-based services include a software solution license integrated with cloud-based services. Since the Company does not allow its customers to take possession of the cloud-based elements of its software solutions, and since the utility of the license comes from the cloud-based services that the Company provides, Smith Micro considers the software license and the cloud services to be a single performance obligation. The Company recognizes revenue associated with its MNO customers based on their active subscribers’ access and usage of Smith Micro’s software licenses and cloud-based services on Smith Micro’s platforms. Smith Micro has made accounting policy elections to exclude all taxes by governmental authorities from the measurement of the transaction price, and since the Company’s standard payment terms are less than one year, the Company has elected the practical expedient not to assess whether a contract has a significant financing component. Disaggregation of Revenues Revenues on a disaggregated basis are as follows (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 License and service fees $ 957 $ 818 $ 2,818 $ 3,199 Hosted environment usage fees 1,074 3,475 3,937 11,573 Cloud based usage fees 9,388 11,446 28,936 27,047 Consulting services and other 280 704 1,417 1,924 Total revenues $ 11,699 $ 16,443 $ 37,108 $ 43,743

Segment, Customer Concentration

Segment, Customer Concentration and Geographical Information	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Segment, Customer Concentration and Geographical Information	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 has one primary business unit based on how management internally evaluates separate financial information, business activities and management responsibility: Wireless. The Wireless segment includes the Family Safety (which includes SafePath®), CommSuite®, and ViewSpot® families of products. The Company does not separately allocate operating expenses to these product lines, nor does it allocate specific assets. Therefore, product line information reported includes only revenues. The following table presents the Wireless revenues by product line (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Family Safety $ 9,625 $ 11,969 $ 30,153 $ 29,355 CommSuite 1,070 3,463 3,932 11,535 ViewSpot 989 971 3,003 2,717 Other 15 40 20 136 Total wireless revenues $ 11,699 $ 16,443 $ 37,108 $ 43,743 Customer Concentration Information The Company has certain customers whose revenues individually represented greater than 10% of the Company’s total revenues, or whose accounts receivable balances individually represented greater than 10% of the Company’s total accounts receivable. For the three months ended September 30, 2022, two customers made up 40% and 37% of revenues. For the three months ended September 30, 2021, two customers made up 57% and 29% of revenues. For the nine months ended September 30, 2022, two customers made up 40% and 37% of revenues. For the nine months ended September 30, 2021, two customers made up 59% and 21% of revenues. As of September 30, 2022 four customers accounted for 36%, 28%, 17%, and 11% of accounts receivable, and as of September 30, 2021, four customers accounted for 45%, 25%, 11%, and 11% of accounts receivable. Geographical Information During the three and nine months ended September 30, 2022 and 2021, the Company operated in two geographic locations: the Americas and Europe, Middle East and Africa (EMEA). Revenues attributed to the geographic location of the customers’ bill-to address were as follows (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Americas $ 11,247 $ 15,825 $ 35,654 $ 41,323 EMEA 452 618 1,454 2,420 Total revenues $ 11,699 $ 16,443 $ 37,108 $ 43,743 The Company does not separately allocate specific assets to these geographic locations.

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	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: indemnities to the Company’s customers pursuant to contracts for the Company’s products and services, including indemnities with respect to intellectual property, confidentiality and data privacy; 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 or may make 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	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Leases	Leases The Company leases office space and equipment, and certain office space was 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 (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Lease cost $ 400 $ 609 $ 1,219 $ 1,724 Sublease income — (151) (18) (452) Total lease cost $ 400 $ 458 $ 1,201 $ 1,272 The maturity of operating lease liabilities is presented in the following table (unaudited, in thousands): As of September 30, 2022 2022 $ 415 2023 1,630 2024 1,485 2025 1,133 2026 459 Total lease payments 5,122 Less imputed interest (483) Present value of lease liabilities $ 4,639 Additional information relating to the Company’s operating leases follows (unaudited): As of September 30, 2022 Weighted average remaining lease term (years) 3.30 Weighted average discount rate 6.3 %

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company accounts 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 three-year historical cumulative loss as of the end of fiscal 2021. In addition, the Company was also in a loss for fiscal 2017 and 2018. These facts, combined with uncertain near-term market and economic conditions, reduced the Company’s ability to rely on projections of future taxable income in assessing the realizability of its deferred tax assets. After a review of the four sources of taxable income as of December 31, 2021, and after consideration of the Company’s cumulative loss position as of December 31, 2021, the Company will continue to reserve its U.S.-based deferred tax amounts, which total $57.3 million as of September 30, 2022. 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. The Company is no longer subject to examination for U.S. federal income tax returns for years before December 31, 2018 and for state income tax returns, the Company is no longer subject to examination for years before December 31, 2017. As of September 30, 2022, 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. Smith Micro 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 the consolidated financial results of the Company. 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.

Subsequent Events

Subsequent Events	9 Months Ended
	Sep. 30, 2022
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company evaluates and discloses subsequent events as required by FASB ASC Topic No. 855, Subsequent Events . The Topic establishes general standards of accounting for and disclosure of events that occur after the balance sheet date, but before the financial statements are issued or are available to be issued. Subsequent events have been evaluated as of the date of this filing and no further disclosures are required.

Equity Transactions

Equity Transactions	9 Months Ended
	Sep. 30, 2022
Equity [Abstract]
Equity Transactions	Equity TransactionsIn a registered direct offering concurrent with the Notes and Warrants Offering referred to in Note 3, on August 11, 2022, the Company entered into a Securities Purchase Agreement (the “Additional Purchase Agreement” and together with the SPA, the “Purchase Agreements”) with certain accredited investors to sell an aggregate of 1,132,075 shares of the Company’s common stock and warrants to purchase up to an aggregate of 1,132,075 shares of the Company’s common stock (the “Additional Warrants”) at a purchase price of $2.65 per share of Company common stock and associated Additional Warrants (the “Stock and Additional Warrants Offering”). Each Additional Warrant is exercisable on the sixth month Securities and Exchange Commission, and prospectus supplements thereunder. The Stock and Additional Warrants Offering closed on August 12, 2022, and the Company raised net cash proceeds of $2.8 million. The Additional Warrants were assessed and concluded to be liability instruments due to cash purchase settlement provisions and as a result all changes in the fair value of the Additional Warrants will be recognized in the Company's consolidated statements of operations until they are either exercised or expire. The Additional Warrants for the Company's stock are not traded in an active securities market and, as such, the estimated fair value at inception was $1.6 million determined utilizing a Black-Scholes option pricing model, and is reflected on the balance sheet line Warrant and Derivative Liabilities and as a reduction to Additional Paid in Capital. Given that the Additional Warrants are liability instruments that are measured at fair value, the transaction proceeds were first allocated among the Additional Warrants, with the residual of $1.4 million to equity and transaction issuance costs allocated in the same manner, with $0.1 million relating to the Additional Warrants being expensed immediately within General and Administrative Expenses, and $0.1 million as an offset to Additional Paid in Capital.

Accounting Policies (Policies)

Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2022
Accounting Policies [Abstract]
Basis of Presentation	The accompanying interim consolidated balance sheet as of September 30, 2022, and the related consolidated statements of operations, and stockholders’ equity for the three and nine months ended September 30, 2022 and 2021 and the statement of cash flows for the nine months ended September 30, 2022 and 2021, 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 of America (“US 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 the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2021 filed with the SEC on March 11, 2022. Intercompany balances and transactions have been eliminated in consolidation.
New Accounting Pronouncements	In June 2016, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2016-13, "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." This updated guidance sets forth a current expected credit loss model based on expected losses. Under this model, an entity recognizes an allowance for expected credit losses based on historical experience, current conditions and forecasted information rather than the current methodology of delaying recognition of credit losses until it is probable a loss has been incurred. This guidance becomes effective for the Company beginning in interim periods starting in fiscal year 2023. The impact of adopting the new standard is not anticipated to have a material impact on the Company's consolidated financial statements. In August 2020, the FASB issued ASU 2020-06, Debt with Conversion and Other Options and Derivatives and Hedging: Accounting for Convertible Instruments and Contracts in an Entity's Own Equity. This ASU simplifies accounting for convertible instruments whereby embedded conversion features that are not accounted for as derivatives under Accounting Standards Codification 815 or that do not result in substantial premiums accounted for as paid-in capital are no longer separated from the host contract. Under ASU 2020-06, entities are required to use the if-converted method to calculate the
Reclassifications	Certain reclassification have been made to the prior year financial statements to conform to the current presentation.
Fair Value of Financial Instruments	The warrants and derivative instruments are measured as Level 3 instruments in the fair value hierarchy as per FASB ASC Topic No. 820, Fair Value Measurements and Disclosures for fair value measurements of items that are recognized or disclosed at fair value in the financial statements. Fair value is an exit price, representing the amount that would be received upon the sale of an asset or the amount that would be 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 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 in measuring fair value. As required by FASB Accounting Standards Codification ("ASC") Topic No. 825, Financial Instruments
Earnings Per Share	The Company calculates earnings per share (“EPS”) as required by FASB ASC Topic No. 260, Earnings Per Share . Basic EPS is calculated by dividing the net income available to common stockholders by the weighted average number of common shares outstanding for the period, excluding common stock equivalents. Diluted EPS is computed by dividing the net income available to common stockholders by the weighted average number of common shares outstanding for the period, plus the weighted average number of dilutive common stock equivalents outstanding for the period determined using the treasury-stock method. For periods with a net loss, the dilutive common stock equivalents are excluded from the diluted EPS calculation. For purposes of this calculation, common stock subject to repurchase by the Company, options, warrants, and convertible notes are considered to be common stock equivalents and are only included in the calculation of diluted earnings per share when their effect is dilutive.
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 has one primary business unit based on how management internally evaluates separate financial information, business activities and management responsibility: Wireless. The Wireless segment includes the Family Safety (which includes SafePath®), CommSuite®, and ViewSpot® families of products. The Company does not separately allocate operating expenses to these product lines, nor does it allocate specific assets. Therefore, product line information reported includes only revenues.
Income Taxes	The Company accounts 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 three-year historical cumulative loss as of the end of fiscal 2021. In addition, the Company was also in a loss for fiscal 2017 and 2018. These facts, combined with uncertain near-term market and economic conditions, reduced the Company’s ability to rely on projections of future taxable income in assessing the realizability of its deferred tax assets.

Debt and Fair Value of Financ_2

Debt and Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Balance of the Notes	The balance of the Notes as of September 30, 2022 is as follows (unaudited, in thousands): Current Long term Total Gross Balance as of September 30, 2022 $ 10,500 $ 4,500 $ 15,000 Unamortized Discount (6,687) (585) $ (7,272) Unamortized Issuance Costs (378) (42) $ (420) Net Balance as of September 30, 2022 $ 3,435 $ 3,873 $ 7,308
Summary of Assumptions Utilized	These derivatives are initially recognized at a fair value of $4.2 million based on the net present value of the expected cash flows and a Black-Scholes option pricing model, respectively, with the following assumptions being utilized: Convertibles Notes Derivative August 11, 2022 September 30, 2022 Common stock market price $ 3.04 $ 2.26 Risk-free interest rate 3.28 % 3.89 % Expected dividend yield — — Expected term (in years) 1.39 1.25 Expected volatility 56.32 % 57.73 % Warrants Additional Warrants August 11, 2022 September 30, 2022 August 12, 2022 September 30, 2022 Common stock market price $ 3.04 $ 2.26 $ 2.34 $ 2.26 Risk-free interest rate 3.03 % 3.70 % 3.03 % 3.70 % Expected dividend yield — — — — Expected term (in years) 5.00 4.87 5.50 5.37 Expected volatility 66.85 % 66.51 % 70.55 % 68.50 %
Summary of Financial Liabilities Measured at Fair Value on a Recurring Basis	The following table presents information about the financial liabilities that are measured at fair value on a recurring basis at September 30, 2022 (in thousands): Level 1 Level 2 Level 3 Total Notes and Warrants Offering Derivatives — — $ 2,173 $ 2,173 Notes and Warrants Offering Warrants — — 2,462 2,462 Stock and Warrants Offering Warrants — — 1,486 1,486 Total at September 30, 2022 — — $ 6,121 $ 6,121
Schedule of Changes in Fair Value	The following table presents the changes in the fair value for the nine months ended September 30, 2022 (in thousands): Notes and Warrants Offering Derivatives Notes and Warrants Offering Warrants Stock and Warrants Offering Warrants Total Measurement at December 31, 2021 $ — $ — $ — $ — Additions 4,195 3,793 1,590 9,578 Change in Fair Value (2,022) (1,331) (104) (3,457) Measurement at September 30, 2022 $ 2,173 $ 2,462 $ 1,486 $ 6,121

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Components of Intangible Assets	The components of the Company’s intangible assets were as follows for the periods presented : September 30, 2022 December 31, 2021 (unaudited, in thousands, except for useful life data) (audited, in thousands, except for useful life data) Weighted Average Gross Accumulated Net Book Value Weighted Average Gross Accumulated Net Book Value Purchased technology 7 $ 13,529 $ (5,320) $ 8,209 8 $ 13,529 $ (3,764) $ 9,765 Customer relationships 12 27,960 (4,380) 23,580 13 27,960 (2,816) 25,144 Customer contracts 1 7,000 (5,396) 1,604 2 7,000 (4,441) 2,559 Software license 7 5,419 (1,362) 4,057 9 5,419 (793) 4,626 Non-compete 0 283 (254) 29 1 283 (196) 87 Patents 5 600 (214) 386 5 600 (150) 450 Total $ 54,791 $ (16,926) $ 37,865 $ 54,791 $ (12,160) $ 42,631
Estimated Future Amortization Expense	As of September 30, 2022, estimated amortization expense for the remainder of 2022 and thereafter was as follows (unaudited, in thousands): Year Ending December 31, Amortization Expense 2022 $ 1,545 2023 5,874 2024 5,635 2025 5,402 2026 5,007 2027 and thereafter 14,402 Total $ 37,865

Earnings Per Share (Tables)

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2022
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 (unaudited, in thousands, except per share amounts): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Numerator: Net loss $ (5,812) $ (18,607) $ (21,307) $ (27,035) Denominator: Weighted average shares outstanding – basic 55,722 53,939 55,140 50,147 Potential common shares – options / warrants (treasury stock method) and convertible notes (as if converted method) — — — — Weighted average shares outstanding – diluted 55,722 53,939 55,140 50,147 Shares excluded (anti-dilutive) 8,097 1,279 2,182 1,333 Net loss per common share: Basic $ (0.10) $ (0.34) $ (0.39) $ (0.54) Diluted $ (0.10) $ (0.34) $ (0.39) $ (0.54)
Summary of Shares Excluded from the Computation of Diluted Net Loss Per Share	The following shares were excluded from the computation of diluted net loss per share as the impact of including those shares would be anti-dilutive (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Convertible notes, as if converted 2,460 — 823 — Outstanding stock options 138 144 143 105 Outstanding warrants 5,499 1,135 1,215 1,228 Total anti-dilutive 8,097 1,279 2,182 1,333

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]
Schedule of non-cash stock-based compensation expense	Non-cash stock-based compensation expenses related to stock options, restricted stock grants and the ESPP were recorded in the financial statements as follows (unaudited, in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Cost of sales $ — $ — $ 2 $ 1 Sales and marketing 179 238 915 663 Research and development 279 270 808 705 General and administrative 637 818 2,124 2,254 Total non-cash stock compensation expense $ 1,095 $ 1,326 $ 3,849 $ 3,623
Summary of outstanding stock options	A summary of the Company’s stock options outstanding and related information under the 2015 OEIP and 2005 Plan for the nine months ended September 30, 2022 are as follows (unaudited, in thousands except weighted average exercise price and weighted average remaining contractual life): Shares Weighted Avg. Exercise Price Wtd. Avg. Remaining Contractual Life (Yrs) Aggregate Intrinsic Value Outstanding as of December 31, 2021 194 $ 4.12 $ 218 Granted — $ — $ — Exercised (8) $ 2.15 $ 11 Forfeited (1) $ 5.52 $ — Expired (5) $ 6.80 $ — Outstanding as of September 30, 2022 180 $ 4.12 4.2 $ 12 Vested and expected to vest at September 30, 2022 177 $ 4.10 4.2 $ 12 Exercisable as of September 30, 2022 152 $ 4.00 3.6 $ 10
Summary of restricted stock awards outstanding	A summary of the Company’s restricted stock awards outstanding under the 2015 OEIP and 2005 Plan for the nine months ended September 30, 2022 are as follows (unaudited, in thousands, except weighted average grant date fair value): Shares Weighted average Unvested at December 31, 2021 1,668 $ 5.83 Granted 1,398 $ 3.76 Vested (972) $ 4.92 Canceled and forfeited (208) $ 6.08 Unvested at September 30, 2022 1,886 $ 4.74

Revenues (Tables)

Revenues (Tables)	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Schedule of Revenues on Disaggregated Basis	Revenues on a disaggregated basis are as follows (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 License and service fees $ 957 $ 818 $ 2,818 $ 3,199 Hosted environment usage fees 1,074 3,475 3,937 11,573 Cloud based usage fees 9,388 11,446 28,936 27,047 Consulting services and other 280 704 1,417 1,924 Total revenues $ 11,699 $ 16,443 $ 37,108 $ 43,743

Segment, Customer Concentrati_2

Segment, Customer Concentration and Geographical Information (Tables)	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Wireless Revenues by Product	The following table presents the Wireless revenues by product line (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Family Safety $ 9,625 $ 11,969 $ 30,153 $ 29,355 CommSuite 1,070 3,463 3,932 11,535 ViewSpot 989 971 3,003 2,717 Other 15 40 20 136 Total wireless revenues $ 11,699 $ 16,443 $ 37,108 $ 43,743
Company Revenue in Different Geographic Locations	Revenues attributed to the geographic location of the customers’ bill-to address were as follows (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Americas $ 11,247 $ 15,825 $ 35,654 $ 41,323 EMEA 452 618 1,454 2,420 Total revenues $ 11,699 $ 16,443 $ 37,108 $ 43,743

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2022
Leases [Abstract]
Summary of Operating Lease Cost	Operating lease cost consists of the following (unaudited, in thousands): For the Three Months Ended September 30, For the Nine Months Ended September 30, 2022 2021 2022 2021 Lease cost $ 400 $ 609 $ 1,219 $ 1,724 Sublease income — (151) (18) (452) Total lease cost $ 400 $ 458 $ 1,201 $ 1,272
Summary of Maturity of Operating Lease Liabilities	The maturity of operating lease liabilities is presented in the following table (unaudited, in thousands): As of September 30, 2022 2022 $ 415 2023 1,630 2024 1,485 2025 1,133 2026 459 Total lease payments 5,122 Less imputed interest (483) Present value of lease liabilities $ 4,639
Summary of Additional Information Relating to Company's Operating Leases	Additional information relating to the Company’s operating leases follows (unaudited): As of September 30, 2022 Weighted average remaining lease term (years) 3.30 Weighted average discount rate 6.3 %

Debt and Fair Value of Financ_3

Debt and Fair Value of Financial Instruments - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	9 Months Ended
	Aug. 12, 2022	Aug. 11, 2022	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2022	Dec. 31, 2021
Line Of Credit Facility [Line Items]
Aggregate original principal amount of convertible notes			$ 15,000	$ 15,000
Fair value of warrants at inception			6,121	6,121			$ 0
Non-cash transaction costs including amortization				1,422	$ 0
Deferred financing costs			420	420
Net cash proceeds from stock and warrants offering				15,000	$ 0
Credit Facility | Wells Fargo Bank, National Association
Line Of Credit Facility [Line Items]
Secured revolving credit facility						$ 7,000
Repayments of secured debt			300	300
Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Derivative liability		$ 4,200	$ 2,173	$ 2,173
Notes and Warrants Offering
Line Of Credit Facility [Line Items]
Non-cash transaction costs including amortization		500
Deferred financing costs		500
Net cash proceeds from stock and warrants offering	$ 14,000
Effective interest rate			155%	155%
Interest expense				$ 900
Amortization of debt issuance costs				100
Amortization of discount				700
Stated interest				$ 100
Stock and Additional Warrants Offering
Line Of Credit Facility [Line Items]
Non-cash transaction costs including amortization	1,400
Net cash proceeds from stock and warrants offering	2,800
Warrants
Line Of Credit Facility [Line Items]
Fair value of warrants at inception		$ 3,800
Warrants | Notes and Warrants Offering
Line Of Credit Facility [Line Items]
Aggregate number of warrants (in shares)		2,238,806
Exercise price of warrants (in dollars per share)		$ 3.35
Warrant expiration, term		5 years
Additional Warrants
Line Of Credit Facility [Line Items]
Fair value of warrants at inception	$ 1,600
Additional Warrants | Stock and Additional Warrants Offering
Line Of Credit Facility [Line Items]
Aggregate number of warrants (in shares)		1,132,075
Exercise price of warrants (in dollars per share)		$ 2.65
Senior Secured Convertible Notes
Line Of Credit Facility [Line Items]
Aggregate original principal amount of convertible notes		$ 15,000
Senior Secured Convertible Notes | Convertible Debt
Line Of Credit Facility [Line Items]
Stated interest rate		6%
Default interest rate		15%
Senior Secured Convertible Notes | Convertible Debt | Notes and Warrants Offering
Line Of Credit Facility [Line Items]
Initial conversion price (in dollars per share)		$ 3.35

Debt and Fair Value of Financ_4

Debt and Fair Value of Financial Instruments - Assumptions (Details)	Sep. 30, 2022 yr $ / shares	Aug. 12, 2022 $ / shares yr	Aug. 11, 2022 $ / shares yr
Common stock market price | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input | $ / shares	2.26		3.04
Common stock market price | Warrants
Line Of Credit Facility [Line Items]
Measurement input | $ / shares	2.26		3.04
Common stock market price | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input | $ / shares	2.26	2.34
Risk-free interest rate | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input	0.0389		0.0328
Risk-free interest rate | Warrants
Line Of Credit Facility [Line Items]
Measurement input	0.0370		0.0303
Risk-free interest rate | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input	0.0370	0.0303
Expected dividend yield | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input	0		0
Expected dividend yield | Warrants
Line Of Credit Facility [Line Items]
Measurement input	0		0
Expected dividend yield | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input	0	0
Expected term (in years) | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input | yr	1.25		1.39
Expected term (in years) | Warrants
Line Of Credit Facility [Line Items]
Measurement input | yr	4.87		5
Expected term (in years) | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input | yr	5.37	5.50
Expected volatility | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input	0.5773		0.5632
Expected volatility | Warrants
Line Of Credit Facility [Line Items]
Measurement input	0.6651		0.6685
Expected volatility | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input	0.6850	0.7055

Debt and Fair Value of Financ_5

Debt and Fair Value of Financial Instruments - Balance of the Notes (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Current
Gross Balance as of September 30, 2022	$ 10,500
Unamortized Discount	(6,687)
Unamortized Issuance Costs	(378)
Net Balance as of September 30, 2022	3,435
Long term
Gross Balance as of September 30, 2022	4,500
Unamortized Discount	(585)
Unamortized Issuance Costs	(42)
Net Balance as of September 30, 2022	3,873
Total
Gross Balance as of September 30, 2022	15,000
Unamortized Discount	(7,272)
Unamortized Issuance Costs	(420)
Net Balance as of September 30, 2022	$ 7,308

Debt and Fair Value of Financ_6

Debt and Fair Value of Financial Instruments - Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Aug. 11, 2022
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total at September 30, 2022	$ 6,121
Notes and Warrants Offering
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	2,462
Stock and Additional Warrants Offering
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	1,486
Embedded Derivative Financial Instruments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivatives	2,173	$ 4,200
Level 1
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total at September 30, 2022	0
Level 1 | Notes and Warrants Offering
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	0
Level 1 | Stock and Additional Warrants Offering
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	0
Level 1 | Embedded Derivative Financial Instruments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivatives	0
Level 2
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total at September 30, 2022	0
Level 2 | Notes and Warrants Offering
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	0
Level 2 | Stock and Additional Warrants Offering
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	0
Level 2 | Embedded Derivative Financial Instruments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivatives	0
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total at September 30, 2022	6,121
Level 3 | Notes and Warrants Offering
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	2,462
Level 3 | Stock and Additional Warrants Offering
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	1,486
Level 3 | Embedded Derivative Financial Instruments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivatives	$ 2,173

Debt and Fair Value of Financ_7

Debt and Fair Value of Financial Instruments - Rollforward (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($)
Notes and Warrants Offering Derivatives
Measurement at beginning of period	$ 0
Additions	4,195
Change in Fair Value	(2,022)
Measurement at end of period	2,173
Total
Measurement at beginning of period	0
Additions	9,578
Change in Fair Value	(3,457)
Measurement at end of period	6,121
Notes and Warrants Offering
Warrants
Measurement at beginning of period	0
Additions	3,793
Change in Fair Value	(1,331)
Measurement at end of period	2,462
Stock and Additional Warrants Offering
Warrants
Measurement at beginning of period	0
Additions	1,590
Change in Fair Value	(104)
Measurement at end of period	$ 1,486

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 0	$ 0
Weighted average useful life	10 years	10 years

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Components of Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Finite Lived Intangible Assets [Line Items]
Gross	$ 54,791	$ 54,791
Accumulated Amortization	(16,926)	(12,160)
Net Book Value	$ 37,865	$ 42,631
Purchased technology
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	7 years	8 years
Gross	$ 13,529	$ 13,529
Accumulated Amortization	(5,320)	(3,764)
Net Book Value	$ 8,209	$ 9,765
Customer relationships
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	12 years	13 years
Gross	$ 27,960	$ 27,960
Accumulated Amortization	(4,380)	(2,816)
Net Book Value	$ 23,580	$ 25,144
Customer contracts
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	1 year	2 years
Gross	$ 7,000	$ 7,000
Accumulated Amortization	(5,396)	(4,441)
Net Book Value	$ 1,604	$ 2,559
Software license
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	7 years	9 years
Gross	$ 5,419	$ 5,419
Accumulated Amortization	(1,362)	(793)
Net Book Value	$ 4,057	$ 4,626
Non-compete
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	0 years	1 year
Gross	$ 283	$ 283
Accumulated Amortization	(254)	(196)
Net Book Value	$ 29	$ 87
Patents
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	5 years	5 years
Gross	$ 600	$ 600
Accumulated Amortization	(214)	(150)
Net Book Value	$ 386	$ 450

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Estimated Future Amortization Expense (Detail) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
2022	$ 1,545
2023	5,874
2024	5,635
2025	5,402
2026	5,007
2027 and thereafter	14,402
Total	$ 37,865	$ 42,631

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		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Numerator:
Net loss	$ (5,812)	$ (18,607)	$ (21,307)	$ (27,035)
Denominator:
Weighted average shares outstanding – basic (in shares)	55,722	53,939	55,140	50,147
Potential common shares - options / warrants (treasury stock method) and convertible notes (in shares)	0	0	0	0
Weighted average shares outstanding – diluted (in shares)	55,722	53,939	55,140	50,147
Shares excluded (anti-dilutive) (in shares)	8,097	1,279	2,182	1,333
Net loss per common share:
Basic (in dollars per share)	$ (0.10)	$ (0.34)	$ (0.39)	$ (0.54)
Diluted (in dollars per share)	$ (0.10)	$ (0.34)	$ (0.39)	$ (0.54)

Earnings Per Share - Shares Exc

Earnings Per Share - Shares Excluded from the Computation of Diluted Net Loss Per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	8,097	1,279	2,182	1,333
Convertible notes, as if converted
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	2,460	0	823	0
Outstanding stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	138	144	143	105
Outstanding warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	5,499	1,135	1,215	1,228

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Plans (Detail) - shares	9 Months Ended
	Sep. 30, 2022	Jun. 18, 2015
2015 Omnibus Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)		9,625,000
Vesting period	4 years
Expiration period	10 years
2015 Omnibus Equity Incentive Plan | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	48 months
Exercise period following termination	90 days
2015 Omnibus Equity Incentive Plan | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	12 months
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, granted (in shares)	1,398,000
Restricted stock | 2015 Omnibus Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, granted (in shares)	1,400,000
Number of shares available for future grants (in shares)	2,400,000
Full value awards | 2015 Omnibus Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards settled in shares, adjustments against share reserve (in shares)	1.2
Partial value awards | 2015 Omnibus Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards settled in shares, adjustments against share reserve (in shares)	1

Stock-Based Compensation - Empl

Stock-Based Compensation - Employee Stock Purchase Plan (Details) - Employee Stock Purchase Plan	9 Months Ended
	Sep. 30, 2022 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase price as a percentage of fair market value	85%
Maximum value of shares available for purchase per employee | $	$ 25,000
Maximum number of shares available for purchase per employee (in shares)	250
Number of shares authorized (in shares)	250,000
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum percentage of payroll deductions	10%

Stock-Based Compensation - Non-

Stock-Based Compensation - Non-cash stock-based compensation expense (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	$ 1,095		$ 1,326	$ 3,849	$ 3,623
Unrecognized compensation costs	$ 8,500			$ 8,500
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense		$ 600
2015 Omnibus Equity Incentive Plan | Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future grants (in shares)	2.4			2.4
Cost of sales
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	$ 0		0	$ 2	1
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	179		238	915	663
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	279		270	808	705
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	$ 637		$ 818	$ 2,124	$ 2,254

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of outstanding stock options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Shares
Outstanding at beginning of period (in shares)	194
Granted (in shares)	0
Exercised (in shares)	(8)
Forfeited (in shares)	(1)
Expired (in shares)	(5)
Outstanding at end of period (in shares)	180
Vested and expected to vest (in shares)	177
Exercisable (in shares)	152
Weighted Avg. Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 4.12
Granted (in dollars per share)	0
Exercised (in dollars per share)	2.15
Forfeited (in dollars per share)	5.52
Expired (in dollars per share)	6.80
Outstanding at end of period (in dollars per share)	4.12
Vested and expected to vest (in dollars per share)	4.10
Exercisable (in dollars per share)	$ 4
Additional disclosures
Wtd. Avg. Remaining Contractual Life (Yrs), Outstanding	4 years 2 months 12 days
Wtd. Avg. Remaining Contractual Life (Yrs), Vested and expected to vest	4 years 2 months 12 days
Wtd. Avg. Remaining Contractual Life (Yrs), Exercisable	3 years 7 months 6 days
Aggregate Intrinsic Value, Exercised	$ 11
Aggregate Intrinsic Value, Forfeited	0
Aggregate Intrinsic Value, Outstanding	12	$ 218
Aggregate Intrinsic Value, Vested and expected to vest	12
Aggregate Intrinsic Value, Exercisable	$ 10

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of restricted stock awards outstanding (Details) - Restricted stock shares in Thousands	9 Months Ended
	Sep. 30, 2022 $ / shares shares
Shares
Unvested at beginning of period (in shares) | shares	1,668
Granted (in shares) | shares	1,398
Vested (in shares) | shares	(972)
Canceled and forfeited (in shares) | shares	(208)
Unvested at end of period (in shares) | shares	1,886
Weighted average grant date fair value
Unvested at beginning of period (in dollars per share) | $ / shares	$ 5.83
Granted (in dollars per share) | $ / shares	3.76
Vested (in dollars per share) | $ / shares	4.92
Canceled and forfeited (in dollars per share) | $ / shares	6.08
Unvested at end of period (in dollars per share) | $ / shares	$ 4.74

Revenues - Schedule of Revenues

Revenues - Schedule of Revenues on Disaggregated Basis (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Disaggregation Of Revenue [Line Items]
Revenues	$ 11,699	$ 16,443	$ 37,108	$ 43,743
Wireless
Disaggregation Of Revenue [Line Items]
Revenues	11,699	16,443	37,108	43,743
Wireless | License and service fees
Disaggregation Of Revenue [Line Items]
Revenues	957	818	2,818	3,199
Wireless | Hosted environment usage fees
Disaggregation Of Revenue [Line Items]
Revenues	1,074	3,475	3,937	11,573
Wireless | Cloud based usage fees
Disaggregation Of Revenue [Line Items]
Revenues	9,388	11,446	28,936	27,047
Wireless | Consulting services and other
Disaggregation Of Revenue [Line Items]
Revenues	$ 280	$ 704	$ 1,417	$ 1,924

Segment, Customer Concentrati_3

Segment, Customer Concentration and Geographical Information - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2022 location	Sep. 30, 2021 location	Sep. 30, 2022 location businessUnit	Sep. 30, 2021 location
Revenue, Major Customer [Line Items]
Number of primary business units | businessUnit			1
Number of geographic locations | location	2	2	2	2
Customer Concentration Risk | Revenues | Customer one
Revenue, Major Customer [Line Items]
Concentration percentage	40%	57%	40%	59%
Customer Concentration Risk | Revenues | Customer two
Revenue, Major Customer [Line Items]
Concentration percentage	37%	29%	37%	21%
Customer Concentration Risk | Accounts receivable | Customer one
Revenue, Major Customer [Line Items]
Concentration percentage			36%	45%
Customer Concentration Risk | Accounts receivable | Customer two
Revenue, Major Customer [Line Items]
Concentration percentage			28%	25%
Customer Concentration Risk | Accounts receivable | Customer three
Revenue, Major Customer [Line Items]
Concentration percentage			17%	11%
Customer Concentration Risk | Accounts receivable | Customer four
Revenue, Major Customer [Line Items]
Concentration percentage			11%	11%

Segment, Customer Concentrati_4

Segment, Customer Concentration and Geographical Information - Wireless Revenues by Product (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue from External Customer [Line Items]
Total revenues	$ 11,699	$ 16,443	$ 37,108	$ 43,743
Wireless
Revenue from External Customer [Line Items]
Total revenues	11,699	16,443	37,108	43,743
Wireless | Family Safety
Revenue from External Customer [Line Items]
Total revenues	9,625	11,969	30,153	29,355
Wireless | CommSuite
Revenue from External Customer [Line Items]
Total revenues	1,070	3,463	3,932	11,535
Wireless | ViewSpot
Revenue from External Customer [Line Items]
Total revenues	989	971	3,003	2,717
Wireless | Other
Revenue from External Customer [Line Items]
Total revenues	$ 15	$ 40	$ 20	$ 136

Segment, Customer Concentrati_5

Segment, Customer Concentration and Geographical Information - Company Revenue in Different Geographic Locations (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenue from External Customer [Line Items]
Total revenues	$ 11,699	$ 16,443	$ 37,108	$ 43,743
Americas | Geographical components
Revenue from External Customer [Line Items]
Total revenues	11,247	15,825	35,654	41,323
EMEA | Geographical components
Revenue from External Customer [Line Items]
Total revenues	$ 452	$ 618	$ 1,454	$ 2,420

Leases - Summary of Operating L

Leases - Summary of Operating Lease Cost (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Lease, Cost [Abstract]
Lease cost	$ 400	$ 609	$ 1,219	$ 1,724
Sublease income	0	(151)	(18)	(452)
Total lease cost	$ 400	$ 458	$ 1,201	$ 1,272

Leases - Summary of Maturity of

Leases - Summary of Maturity of Operating Lease Liabilities (Detail) $ in Thousands	Sep. 30, 2022 USD ($)
Lessee, Operating Lease, Liability, to be Paid [Abstract]
2022	$ 415
2023	1,630
2024	1,485
2025	1,133
2026	459
Total lease payments	5,122
Less imputed interest	(483)
Present value of lease liabilities	$ 4,639

Leases - Summary of Additional

Leases - Summary of Additional Information Relating to Company's Operating Leases (Detail)	Sep. 30, 2022
Leases [Abstract]
Weighted average remaining lease term (years)	3 years 3 months 18 days
Weighted average discount rate	6.30%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) $ in Millions	Sep. 30, 2022 USD ($)
Income Tax Disclosure [Abstract]
Valuation allowance	$ 57.3

Equity Transactions (Details)

Equity Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended		9 Months Ended
	Aug. 12, 2022	Aug. 11, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Class of Warrant or Right [Line Items]
Net cash proceeds from stock and warrants offering					$ 15,000	$ 0
Fair value of warrants at inception			$ 6,121		6,121		$ 0
Non-cash transaction costs including amortization					1,422	0
Amount expensed within general and administrative expenses			$ 4,333	$ 5,143	$ 12,406	$ 13,746
Stock and Additional Warrants Offering
Class of Warrant or Right [Line Items]
Number of shares issued (in shares)		1,132,075
Term when warrants become exercisable		6 months
Net cash proceeds from stock and warrants offering	$ 2,800
Non-cash transaction costs including amortization	1,400
Amount expensed within general and administrative expenses	100
Offset to additional paid in capital	100
Additional Warrants
Class of Warrant or Right [Line Items]
Fair value of warrants at inception	$ 1,600
Additional Warrants | Stock and Additional Warrants Offering
Class of Warrant or Right [Line Items]
Aggregate number of warrants (in shares)		1,132,075
Purchase price (in dollars per share)		$ 2.65
Exercise price of warrants (in dollars per share)		$ 2.65