Smith Micro Software (SMSI) 10-Q 12 May 23 2023 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2023	May 10, 2023
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2023
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		62,196,224
Entity Central Index Key	0000948708
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 8,724	$ 14,026
Accounts receivable, net of allowance for doubtful accounts of $3 and $3 (2023 and 2022, respectively)	11,186	10,501
Prepaid expenses and other current assets	3,323	1,983
Total current assets	23,233	26,510
Equipment and improvements, net	1,272	1,498
Right-of-use assets	3,378	3,722
Other assets	487	490
Intangible assets, net	34,847	36,320
Goodwill	35,041	35,041
Total assets	98,258	103,581
Current liabilities:
Accounts payable	3,119	3,236
Accrued payroll and benefits	3,961	3,883
Current operating lease liabilities	1,452	1,441
Other current liabilities	1,561	1,589
Current portion of convertible notes payable	9,624	9,007
Derivative liabilities	532	1,575
Total current liabilities	20,249	20,731
Non-current liabilities:
Warrant liabilities	1,353	3,317
Operating lease liabilities	2,594	2,976
Deferred tax liabilities, net	178	178
Total non-current liabilities	4,125	6,471
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 60,595,949 and 56,197,910 shares issued and outstanding (2023 and 2022, respectively)	61	56
Additional paid-in capital	362,262	357,875
Accumulated comprehensive deficit	(288,439)	(281,552)
Total stockholders’ equity	73,884	76,379
Total liabilities and stockholders' equity	$ 98,258	$ 103,581

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for doubtful accounts receivable	$ 3	$ 3
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)	60,595,949	56,197,910
Common stock, shares outstanding (in shares)	60,595,949	56,197,910

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenues	$ 10,930	$ 12,735
Cost of revenues (including depreciation of $14 and $32 in 2023 and 2022, respectively)	3,282	3,637
Gross profit	7,648	9,098
Operating expenses:
Selling and marketing	3,554	2,981
Research and development	5,868	7,265
General and administrative	3,475	3,923
Depreciation and amortization	1,686	1,967
Total operating expenses	14,583	16,136
Operating loss	(6,935)	(7,038)
Other income (expense):
Change in fair value of warrant and derivative liabilities	2,984	0
Loss on derecognition of debt	(627)	0
Interest expense, net	(2,260)	(4)
Other (expense) income, net	(40)	59
Loss before provision for income taxes	(6,878)	(6,983)
Provision for income tax expense	9	19
Net loss	$ (6,887)	$ (7,002)
Loss per share:
Basic (in dollars per share)	$ (0.11)	$ (0.13)
Diluted (in dollars per share)	$ (0.11)	$ (0.13)
Weighted average shares outstanding:
Basic (in shares)	61,646	54,501
Diluted (in shares)	61,646	54,501

Consolidated Statements of Op_2

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Depreciation	$ 14	$ 32

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, 2021		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	21		21
Restricted stock grants, net of cancellations (in shares)		1,005,000
Restricted stock grants, net of cancellations	1,045	$ 1	1,044
Employee stock purchase plan shares issued (in shares)		7,000
Employee stock purchase plan shares issued	26		19
Cancellation of shares for payment of withholding tax (in shares)		(121,000)
Cancellation of shares for payment of withholding tax	(474)		(474)
Exercise of stock options (in shares)		6,000
Exercise of stock options	14		14
Net loss	(7,002)			(7,002)
BALANCE, at end of period (in shares) at Mar. 31, 2022		55,156,000
BALANCE, at end of period at Mar. 31, 2022	$ 94,183	$ 55	353,403	(259,275)
BALANCE, at beginning of period (in shares) at Dec. 31, 2022	56,197,910	56,198,000
BALANCE, at beginning of period at Dec. 31, 2022	$ 76,379	$ 56	357,875	(281,552)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and ESPP	9		9
Restricted stock grants, net of cancellations (in shares)		1,264,000
Restricted stock grants, net of cancellations	935	$ 2	933
Employee stock purchase plan shares issued (in shares)		8,000
Employee stock purchase plan shares issued	8		8
Employee stock purchase plan expense	2		2
Cancellation of shares for payment of withholding tax (in shares)		(111,000)
Cancellation of shares for payment of withholding tax	(211)		(211)
Common shares issued with debt conversion (in shares)		3,237,000
Common shares issued in settlement and prepayment of notes payable	3,649	$ 3	3,646
Net loss	$ (6,887)			(6,887)
BALANCE, at end of period (in shares) at Mar. 31, 2023	60,595,949	60,596,000
BALANCE, at end of period at Mar. 31, 2023	$ 73,884	$ 61	$ 362,262	$ (288,439)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities:
Net loss	$ (6,887)	$ (7,002)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,699	1,998
Non-cash lease expense	344	338
Change in fair value of warrant and derivative liabilities	(2,984)	0
Loss on derecognition of debt	627	0
Amortization of debt discount and issuance costs	2,117	0
Provision for doubtful accounts	0	5
Stock based compensation	945	1,065
Gain on disposal of assets	(3)	0
Changes in operating accounts:
Accounts receivable	(685)	(1,472)
Prepaid expenses and other assets	163	(218)
Accounts payable and accrued liabilities	(436)	(1,172)
Other liabilities	(235)	(131)
Net cash used in operating activities	(5,335)	(6,589)
Investing activities:
Capital expenditures, net	3
Capital expenditures, net		(63)
Other investing activities	0	12
Net cash provided by (used in) investing activities	3	(51)
Financing activities:
Proceeds from financing arrangements	442	541
Repayments of financing arrangements	(420)	(181)
Other financing activities	8	33
Net cash provided by financing activities	30	393
Net decrease in cash and cash equivalents	(5,302)	(6,247)
Cash and cash equivalents, beginning of period	14,026	16,078
Cash and cash equivalents, end of period	8,724	9,831
Non-cash investing and financing activities:
Issuance of common stock in settlement and prepayment of notes payable	$ 3,000	$ 0

The Company

The Company	3 Months Ended
	Mar. 31, 2023
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	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Accounting Policies	Accounting Policies Basis of Presentation The accompanying interim consolidated balance sheet as of March 31, 2023, and the related consolidated statements of operations, and stockholders’ equity and cash flows for the three months ended March 31, 2023 and 2022, 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, 2022 filed with the SEC on March 23, 2023 (the "2022 Form 10-K"). Intercompany balances and transactions have been eliminated in consolidation. Operating results for the three months ended March 31, 2023 are not necessarily indicative of the results that may be expected for any other interim period or for the fiscal year ending December 31, 2023. 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 did not have a material impact on the Company's consolidated financial statements. Reclassifications Certain reclassifications have been made to the prior year financial statements to conform to the current presentation.

Equity Transactions

Equity Transactions	3 Months Ended
	Mar. 31, 2023
Equity [Abstract]
Equity Transactions	Equity Transactions In a registered direct offering concurrent with the 2022 Notes and Warrants Offering referred to in Note 4, on August 11, 2022, the Company entered into a Securities Purchase Agreement (the “Additional Purchase Agreement” and together with the Securities Purchase Agreement further discussed in Note 4, the “Purchase Agreements”) with certain accredited investors to sell at a purchase price of $2.65 per share 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”) (the “Stock and Additional Warrants Offering”). Each Additional Warrant is exercisable on the sixth month 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 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 liabilities" and as an adjustment to Additional Paid-in Capital. In accordance with the 2022 Notes and Warrants offering described further in Note 4, during the quarter ended March 31, 2023, at the Company's election, 1,644,738 shares were issued for the April 1, 2023 installment date and the payment for the April 1, 2023 installment date was completed on March 31, 2023, which reduced the convertible notes balance by $1.5 million and is discussed further in Note 4. During the quarter ended March 31, 2023, at the Company's election, 1,592,359 shares were prefunded for the May 1, 2023 installment date, which is represented in the balance sheet line "Prepaid expenses and other current assets" as of March 31, 2023. There were no conversions by the holders of the Notes during the first quarter of 2023.

Debt and Warrants Transactions

Debt and Warrants Transactions	3 Months Ended
	Mar. 31, 2023
Debt Disclosure [Abstract]
Debt and Warrants Transactions	Debt and Warrants Transactions 2022 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, with amortization payments due monthly by the first business day of the month from April 2023 through December 2023, and the balance at maturity. The April 2023 installment payment of $1.5 million was made on March 31, 2023, as described in Note 3 above, and as such a portion of the debt and related derivative were derecognized as of March 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 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, as well as certain other conversion and redemption features. These features are viewed as a compound embedded derivative that meets the criteria to be bifurcated and carried at fair value. This is classified as in the balance sheet line "Derivative liabilities" and as a discount on the Notes, with subsequent adjustments to fair value each reporting period with a charge to earnings. The derivative was initially recognized at a fair value of $4.2 million and is subsequently adjusted to fair value quarterly, as required, and immediately prior to any change in underlying debt balance. The change in valuation of the debt instrument as a whole, including the derivative, as a result of installment payments extinguishing an aggregate of $1.5 million in principal under the Notes, is reflected in the income statement line " Loss on derecognition of debt " totaling $0.6 million for the three months ended March 31, 2023. The assumptions utilized during the quarter are as follows: Convertible Notes Derivative March 31, 2023 Common stock market price $ 1.16 Risk-free interest rate 4.68 % Expected dividend yield — Expected term (in years) 0.75 Expected volatility 84.34 % During the three months ended March 31, 2023, the Company recognized interest expense of $2.3 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 $2.0 million, and contractual interest of $0.2 million. The current balance of the Notes as of March 31, 2023 is as follows (unaudited, in thousands): Current Gross Balance as of March 31, 2023 $ 13,500 Unamortized Discount (3,658) Unamortized Issuance Costs (218) Net Balance as of March 31, 2023 $ 9,624 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 March 31, 2023, 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 3, Additional Warrants 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. 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. There were no warrant exercises in the quarter ended March 31, 2023. The warrants are not traded in an active securities market and, as such, the estimated fair value at inception and again at March 31, 2023 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 March 31, 2023 March 31, 2023 Common stock market price $ 1.16 $ 1.16 Risk-free interest rate 3.82 % 3.82 % Expected dividend yield — — Expected term (in years) 4.37 4.87 Expected volatility 68.94 % 67.85 %

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments The Company measures and discloses fair value measurements as required by FASB ASC Topic No. 820, Fair Value Measurements and Disclosures . Fair value is an exit price, representing the amount that would be received 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 value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value: • Level 1 – Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. • Level 2 – Include other inputs that are directly or indirectly observable in the marketplace. • Level 3 – Unobservable inputs which are supported by little or no market activity. The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. There were no instruments measured at fair value during the three months ended March 31, 2022. The following table presents information about the financial liabilities that are measured at fair value on a recurring basis at March 31, 2023 (in thousands): Level 3 Notes and Warrants Offering Derivative $ 532 Warrants 830 Additional Warrants 524 Total at March 31, 2023 $ 1,886 The following table presents the changes in the fair value for the three months ended March 31, 2023 (in thousands): Notes and Warrants Offering Derivative Warrants Additional Warrants Total Measurement at December 31, 2022 $ 1,575 $ 2,052 $ 1,265 $ 4,892 Change in fair value (1,021) (1,222) (741) (2,984) Derecognition of debt (22) — — (22) Measurement at March 31, 2023 $ 532 $ 830 $ 524 $ 1,886

Goodwill and Intangible Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2023
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. For purposes of our goodwill impairment test, we operate as a single reporting unit. Different judgments relating to the determination of reporting units could significantly affect the testing of goodwill for impairment and the amount of any impairment recognized. In the first quarter of 2023, management concluded that the written notice of termination of a U.S. Tier 1 customer agreement for the Company's family safety solution, as disclosed in Note 16 of the 2022 Form 10-K, represented a triggering event indicating possible impairment of goodwill and long-lived assets, including Customer Relationships intangible assets. Recoverability of goodwill is determined by comparing the fair value of the Company’s single reporting unit to the carrying value of the underlying net assets in the reporting unit. If the fair value of the 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. Due to the triggering event, an interim quantitative impairment analysis was performed as of February 28, 2023 for the Company's single reporting unit. The fair value for the reporting unit was determined using Level 3 unobservable inputs which incorporated assumptions that the Company believes would be a reasonable market participant's view in a hypothetical purchase, to develop the discounted cash flows, which included estimates of revenue growth, earnings before interest taxes, depreciation and amortization ("EBITDA") and a discount rate of 22% derived from a capital asset pricing model. The fair value was estimated utilizing a combination of the income approach using the estimated discounted cash flows and a market-based valuation methodology applying an equal weighting. The impairment analysis contains inherent uncertainties due to uncontrollable events that could positively or negatively impact anticipated future economic and operating conditions. The estimated fair value of the Company's reporting unit exceeded the fair value of the other assets and liabilities (expressed as a percentage of carrying value) as of February 2023, and as such there was not any impairment. The Company determined that there were no further goodwill impairment indicators at March 31, 2023 and there were no goodwill impairment indicators at December 31, 2022. If current projections, including revenue growth and operating results are not achieved or specific valuation factors outside the Company's control, such as discount rates, economic or industry challenges, significantly change, goodwill could be subject to future impairment. For intangibles, an impairment loss is recognized if the carrying amount of an intangible asset is not recoverable and its carrying amount exceeds its fair value. The carrying amount of a long-lived asset is not recoverable if it exceeds the sum of the undiscounted cash flows expected to result from the use and eventual disposition of the asset. The Company assessed the assets impacted as a result of the triggering event indicated above and performed a recoverability test on the Customer relationships intangible asset from the Avast Family Safety Mobile Business acquisition as of February 28, 2023 using Level 3 unobservable inputs including estimates of revenue growth, and EBITDA. The Company's estimated undiscounted future cash flows exceeded the carrying amount of the Customer Relationships intangible asset, and therefore there was no impairment to the definite-lived intangible assets as a result of the triggering event. The components of the Company’s intangible assets were as follows for the periods presented: March 31, 2023 (unaudited, in thousands, except for useful life data) Weighted Average Gross Carrying Amount Accumulated Net Book Value Purchased technology 6 $ 13,529 $ (6,272) $ 7,257 Customer relationships 12 27,548 (5,166) 22,382 Customer contracts 1 7,000 (5,802) 1,198 Software license 7 5,419 (1,752) 3,667 Patents 4 600 (257) 343 Total $ 54,096 $ (19,249) $ 34,847 December 31, 2022 (audited, in thousands, except for useful life data) Weighted Average Gross Carrying Amount Accumulated Net Book Value Purchased technology 7 $ 13,529 $ (5,835) $ 7,694 Customer relationships 12 27,548 (4,490) 23,058 Customer contracts 1 7,000 (5,673) 1,327 Software license 7 5,419 (1,552) 3,867 Non-compete 1 283 (273) 10 Patents 5 600 (236) 364 Total $ 54,379 $ (18,059) $ 36,320 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 March 31, 2023 and December 31, 2022. During the three months ended March 31, 2023 and 2022, intangible asset amortization expense was $1.5 million and $1.6 million, respectively. As of March 31, 2023, estimated amortization expense for the remainder of 2023 and thereafter was as follows (unaudited, in thousands): Year Ending December 31, Amortization Expense 2023 $ 4,400 2024 5,635 2025 5,402 2026 5,007 2027 4,131 2028 and thereafter 10,272 Total $ 34,847

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2023
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 March 31, 2023 2022 Numerator: Net loss $ (6,887) $ (7,002) Denominator: Weighted average shares outstanding – basic 61,646 54,501 Potential common shares – options / warrants (treasury stock method) and convertible notes (as if converted method) — — Weighted average shares outstanding – diluted 61,646 54,501 Shares excluded (anti-dilutive) 8,032 1,024 Net loss per common share: Basic $ (0.11) $ (0.13) Diluted $ (0.11) $ (0.13) 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 March 31, 2023 2022 Convertible notes, as if converted 4,473 — Outstanding stock options 95 131 Outstanding warrants 3,464 893 Total anti-dilutive shares 8,032 1,024

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation Stock Plans During the quarter ended March 31, 2023, 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 March 31, 2023, there were approximately 0.9 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 Company's Board of Directors 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 Compensation Committee of the Board of Directors administers the 2015 OEIP and determines the vesting schedule at the time of grant. 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, which typically ranges from 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 March 31, 2023 2022 Sales and marketing 162 83 Research and development 224 261 General and administrative 559 721 Total non-cash stock compensation expense $ 945 $ 1,065 As of March 31, 2023, there was approximately $8.3 million in unrecognized compensation costs related to non-vested stock options and restricted stock granted under the 2015 OEIP and the 2005 Plan. Stock Options A summary of the Company’s stock options outstanding and related information under the 2015 OEIP and 2005 Plan for the three months ended March 31, 2023 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, 2022 139 $ 3.75 $ 6 Forfeited (18) $ 4.31 $ 7 Outstanding as of March 31, 2023 121 $ 3.66 4.75 $ — Vested and expected to vest at March 31, 2023 120 $ 3.65 4.73 $ — Exercisable as of March 31, 2023 112 $ 3.58 4.52 $ — Restricted Stock Awards A summary of the Company’s restricted stock awards outstanding under the 2015 OEIP for the three months ended March 31, 2023 are as follows (unaudited, in thousands, except weighted average grant date fair value): Shares Weighted average Unvested at December 31, 2022 1,679 4.75 Granted 1,358 1.63 Vested (316) 4.30 Canceled and forfeited (94) 3.75 Unvested at March 31, 2023 2,627 3.23

Revenues

Revenues	3 Months Ended
	Mar. 31, 2023
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. 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 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 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 March 31, 2023 2022 License and service fees $ 1,000 $ 828 Hosted environment usage fees 819 1,429 Cloud based usage fees 8,677 9,878 Consulting services and other 434 600 Total revenues $ 10,930 $ 12,735

Segment, Customer Concentration

Segment, Customer Concentration and Geographical Information	3 Months Ended
	Mar. 31, 2023
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 March 31, 2023 2022 Family Safety $ 9,089 $ 10,366 CommSuite 826 1,430 ViewSpot 1,015 939 Total Wireless revenues $ 10,930 $ 12,735 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 March 31, 2023, three customers made up 37%, 37% and 14% of revenues. For the three months ended March 31, 2022, three customers made up 40%, 37%, and 10% of revenues. Geographical Information During the three months ended March 31, 2023 and 2022, 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 March 31, 2023 2022 Americas $ 10,511 $ 12,193 EMEA 419 542 Total revenues $ 10,930 $ 12,735 The Company does not separately allocate specific assets to these geographic locations.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2023
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	3 Months Ended
	Mar. 31, 2023
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 March 31, 2023 2022 Lease cost $ 410 $ 434 Sublease income — (18) Total lease cost $ 410 $ 416 The maturity of operating lease liabilities is presented in the following table (unaudited, in thousands): As of March 31, 2023 2023 $ 1,670 2024 1,519 2025 1,162 2026 479 Total lease payments 4,830 Less imputed interest 784 Present value of lease liabilities $ 4,046 Additional information relating to the Company’s operating leases follows (unaudited): As of March 31, 2023 Weighted average remaining lease term (years) 2.85 Weighted average discount rate 6.2 %

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2023
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 2022. 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, 2022, and after consideration of the Company’s cumulative loss position as of December 31, 2022, the Company will continue to reserve its U.S.-based deferred tax amounts, which total $62.7 million as of March 31, 2023. 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 March 31, 2023, 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

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2023
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.

Accounting Policies (Policies)

Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	The accompanying interim consolidated balance sheet as of March 31, 2023, and the related consolidated statements of operations, and stockholders’ equity and cash flows for the three months ended March 31, 2023 and 2022, 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, 2022 filed with the SEC on March 23, 2023 (the "2022 Form 10-K"). 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 did not have a material impact on the Company's consolidated financial statements.
Reclassifications	Certain reclassifications have been made to the prior year financial statements to conform to the current presentation.
Fair Value of Financial Instruments	The Company measures and discloses fair value measurements as required by FASB ASC Topic No. 820, Fair Value Measurements and Disclosures . Fair value is an exit price, representing the amount that would be received 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 value hierarchy, which prioritizes the inputs used in the valuation methodologies in measuring fair value: • Level 1 – Observable inputs that reflect quoted prices (unadjusted) for identical assets or liabilities in active markets. • Level 2 – Include other inputs that are directly or indirectly observable in the marketplace. • Level 3 – Unobservable inputs which are supported by little or no market activity. The fair value hierarchy also requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value.
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 2022. 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 Warrants Transactions

Debt and Warrants Transactions (Tables)	3 Months Ended
	Mar. 31, 2023
Debt Disclosure [Abstract]
Summary of Assumptions Utilized	The assumptions utilized during the quarter are as follows: Convertible Notes Derivative March 31, 2023 Common stock market price $ 1.16 Risk-free interest rate 4.68 % Expected dividend yield — Expected term (in years) 0.75 Expected volatility 84.34 % Warrants Additional Warrants March 31, 2023 March 31, 2023 Common stock market price $ 1.16 $ 1.16 Risk-free interest rate 3.82 % 3.82 % Expected dividend yield — — Expected term (in years) 4.37 4.87 Expected volatility 68.94 % 67.85 %
Balance of the Notes	The current balance of the Notes as of March 31, 2023 is as follows (unaudited, in thousands): Current Gross Balance as of March 31, 2023 $ 13,500 Unamortized Discount (3,658) Unamortized Issuance Costs (218) Net Balance as of March 31, 2023 $ 9,624

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
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 March 31, 2023 (in thousands): Level 3 Notes and Warrants Offering Derivative $ 532 Warrants 830 Additional Warrants 524 Total at March 31, 2023 $ 1,886
Schedule of Changes in Fair Value	The following table presents the changes in the fair value for the three months ended March 31, 2023 (in thousands): Notes and Warrants Offering Derivative Warrants Additional Warrants Total Measurement at December 31, 2022 $ 1,575 $ 2,052 $ 1,265 $ 4,892 Change in fair value (1,021) (1,222) (741) (2,984) Derecognition of debt (22) — — (22) Measurement at March 31, 2023 $ 532 $ 830 $ 524 $ 1,886

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2023
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: March 31, 2023 (unaudited, in thousands, except for useful life data) Weighted Average Gross Carrying Amount Accumulated Net Book Value Purchased technology 6 $ 13,529 $ (6,272) $ 7,257 Customer relationships 12 27,548 (5,166) 22,382 Customer contracts 1 7,000 (5,802) 1,198 Software license 7 5,419 (1,752) 3,667 Patents 4 600 (257) 343 Total $ 54,096 $ (19,249) $ 34,847 December 31, 2022 (audited, in thousands, except for useful life data) Weighted Average Gross Carrying Amount Accumulated Net Book Value Purchased technology 7 $ 13,529 $ (5,835) $ 7,694 Customer relationships 12 27,548 (4,490) 23,058 Customer contracts 1 7,000 (5,673) 1,327 Software license 7 5,419 (1,552) 3,867 Non-compete 1 283 (273) 10 Patents 5 600 (236) 364 Total $ 54,379 $ (18,059) $ 36,320
Estimated Future Amortization Expense	As of March 31, 2023, estimated amortization expense for the remainder of 2023 and thereafter was as follows (unaudited, in thousands): Year Ending December 31, Amortization Expense 2023 $ 4,400 2024 5,635 2025 5,402 2026 5,007 2027 4,131 2028 and thereafter 10,272 Total $ 34,847

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2023
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 March 31, 2023 2022 Numerator: Net loss $ (6,887) $ (7,002) Denominator: Weighted average shares outstanding – basic 61,646 54,501 Potential common shares – options / warrants (treasury stock method) and convertible notes (as if converted method) — — Weighted average shares outstanding – diluted 61,646 54,501 Shares excluded (anti-dilutive) 8,032 1,024 Net loss per common share: Basic $ (0.11) $ (0.13) Diluted $ (0.11) $ (0.13)
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 March 31, 2023 2022 Convertible notes, as if converted 4,473 — Outstanding stock options 95 131 Outstanding warrants 3,464 893 Total anti-dilutive shares 8,032 1,024

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2023
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 March 31, 2023 2022 Sales and marketing 162 83 Research and development 224 261 General and administrative 559 721 Total non-cash stock compensation expense $ 945 $ 1,065
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 three months ended March 31, 2023 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, 2022 139 $ 3.75 $ 6 Forfeited (18) $ 4.31 $ 7 Outstanding as of March 31, 2023 121 $ 3.66 4.75 $ — Vested and expected to vest at March 31, 2023 120 $ 3.65 4.73 $ — Exercisable as of March 31, 2023 112 $ 3.58 4.52 $ —
Summary of restricted stock awards outstanding	A summary of the Company’s restricted stock awards outstanding under the 2015 OEIP for the three months ended March 31, 2023 are as follows (unaudited, in thousands, except weighted average grant date fair value): Shares Weighted average Unvested at December 31, 2022 1,679 4.75 Granted 1,358 1.63 Vested (316) 4.30 Canceled and forfeited (94) 3.75 Unvested at March 31, 2023 2,627 3.23

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2023
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 March 31, 2023 2022 License and service fees $ 1,000 $ 828 Hosted environment usage fees 819 1,429 Cloud based usage fees 8,677 9,878 Consulting services and other 434 600 Total revenues $ 10,930 $ 12,735

Segment, Customer Concentrati_2

Segment, Customer Concentration and Geographical Information (Tables)	3 Months Ended
	Mar. 31, 2023
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 March 31, 2023 2022 Family Safety $ 9,089 $ 10,366 CommSuite 826 1,430 ViewSpot 1,015 939 Total Wireless revenues $ 10,930 $ 12,735
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 March 31, 2023 2022 Americas $ 10,511 $ 12,193 EMEA 419 542 Total revenues $ 10,930 $ 12,735

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2023
Leases [Abstract]
Summary of Operating Lease Cost	Operating lease cost consists of the following (unaudited, in thousands): For the Three Months Ended March 31, 2023 2022 Lease cost $ 410 $ 434 Sublease income — (18) Total lease cost $ 410 $ 416
Summary of Maturity of Operating Lease Liabilities	The maturity of operating lease liabilities is presented in the following table (unaudited, in thousands): As of March 31, 2023 2023 $ 1,670 2024 1,519 2025 1,162 2026 479 Total lease payments 4,830 Less imputed interest 784 Present value of lease liabilities $ 4,046
Summary of Additional Information Relating to Company's Operating Leases	Additional information relating to the Company’s operating leases follows (unaudited): As of March 31, 2023 Weighted average remaining lease term (years) 2.85 Weighted average discount rate 6.2 %

Equity Transactions (Details)

Equity Transactions (Details) - USD ($) $ / shares in Units, $ in Thousands	May 01, 2023	Mar. 31, 2023	Aug. 12, 2022	Aug. 11, 2022	Dec. 31, 2022
Class of Warrant or Right [Line Items]
Fair value of warrants at inception		$ 1,353			$ 3,317
Senior Secured Convertible Notes
Class of Warrant or Right [Line Items]
Reduction in convertible notes balance		$ 1,500
Additional Warrants
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
Warrants
Class of Warrant or Right [Line Items]
Number of shares issued (in shares)		1,644,738
Warrants | Forecast
Class of Warrant or Right [Line Items]
Number of shares issued (in shares)	1,592,359
Additional Warrants
Class of Warrant or Right [Line Items]
Fair value of warrants at inception			$ 1,600
Additional Warrants | Additional Warrants
Class of Warrant or Right [Line Items]
Purchase price (in dollars per share)				$ 2.65
Aggregate number of warrants (in shares)				1,132,075
Exercise price of warrants (in dollars per share)				$ 2.65

Debt and Warrants Transaction_2

Debt and Warrants Transactions - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Mar. 31, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Aug. 12, 2022	Aug. 11, 2022
Line Of Credit Facility [Line Items]
Fair value of warrants at inception	$ 1,353	$ 1,353		$ 3,317
Loss on derecognition of debt		627	$ 0
Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Derivative liability						$ 4,200
Warrants
Line Of Credit Facility [Line Items]
Interest expense		$ 2,300
Effective interest rate	155%	155%
Amortization of debt issuance costs		$ 100
Amortization of discount		2,000
Stated interest		200
Warrants
Line Of Credit Facility [Line Items]
Fair value of warrants at inception						$ 3,800
Warrants | Warrants
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 | Additional Warrants
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
Reduction in convertible notes balance	$ 1,500
Amount of debt extinguished		$ 1,500
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 | Warrants
Line Of Credit Facility [Line Items]
Initial conversion price (in dollars per share)						$ 3.35

Debt and Warrants Transaction_3

Debt and Warrants Transactions - Assumptions (Details)	Mar. 31, 2023 $ / shares yr
Common stock market price | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input | $ / shares	1.16
Common stock market price | Warrants
Line Of Credit Facility [Line Items]
Measurement input | $ / shares	1.16
Common stock market price | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input | $ / shares	1.16
Risk-free interest rate | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input	0.0468
Risk-free interest rate | Warrants
Line Of Credit Facility [Line Items]
Measurement input	0.0382
Risk-free interest rate | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input	0.0382
Expected dividend yield | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input	0
Expected dividend yield | Warrants
Line Of Credit Facility [Line Items]
Measurement input	0
Expected dividend yield | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input	0
Expected term (in years) | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input | yr	0.75
Expected term (in years) | Warrants
Line Of Credit Facility [Line Items]
Measurement input | yr	4.37
Expected term (in years) | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input | yr	4.87
Expected volatility | Embedded Derivative Financial Instruments
Line Of Credit Facility [Line Items]
Measurement input	0.8434
Expected volatility | Warrants
Line Of Credit Facility [Line Items]
Measurement input	0.6894
Expected volatility | Additional Warrants
Line Of Credit Facility [Line Items]
Measurement input	0.6785

Debt and Warrants Transaction_4

Debt and Warrants Transactions - Balance of the Notes (Details) $ in Thousands	Mar. 31, 2023 USD ($)
Current
Gross Balance as of March 31, 2023	$ 13,500
Unamortized Discount	(3,658)
Unamortized Issuance Costs	(218)
Net Balance as of March 31, 2023	$ 9,624

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Aug. 11, 2022
Embedded Derivative Financial Instruments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivatives		$ 4,200
Level 3
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total at March 31, 2023	$ 1,886
Level 3 | Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	830
Level 3 | Additional Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	524
Level 3 | Embedded Derivative Financial Instruments
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivatives	$ 532

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Rollforward (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2023 USD ($)
Notes and Warrants Offering Derivative
Measurement at beginning of period	$ 1,575
Change in fair value	(1,021)
Derecognition of debt	(22)
Measurement at end of period	532
Total
Measurement at beginning of period	4,892
Change in fair value	(2,984)
Derecognition of debt	(22)
Measurement at end of period	1,886
Warrants
Warrants
Measurement at beginning of period	2,052
Change in fair value	(1,222)
Measurement at end of period	830
Additional Warrants
Warrants
Measurement at beginning of period	1,265
Change in fair value	(741)
Measurement at end of period	$ 524

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Feb. 28, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Discount rate				22%
Goodwill impairment	$ 0		$ 0
Weighted average useful life	10 years		10 years
Intangible asset amortization expense	$ 1,500,000	$ 1,600,000

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Components of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 54,096	$ 54,379
Accumulated Amortization	(19,249)	(18,059)
Net Book Value	$ 34,847	$ 36,320
Purchased technology
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	6 years	7 years
Gross Carrying Amount	$ 13,529	$ 13,529
Accumulated Amortization	(6,272)	(5,835)
Net Book Value	$ 7,257	$ 7,694
Customer relationships
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	12 years	12 years
Gross Carrying Amount	$ 27,548	$ 27,548
Accumulated Amortization	(5,166)	(4,490)
Net Book Value	$ 22,382	$ 23,058
Customer contracts
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	1 year	1 year
Gross Carrying Amount	$ 7,000	$ 7,000
Accumulated Amortization	(5,802)	(5,673)
Net Book Value	$ 1,198	$ 1,327
Software license
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	7 years	7 years
Gross Carrying Amount	$ 5,419	$ 5,419
Accumulated Amortization	(1,752)	(1,552)
Net Book Value	$ 3,667	$ 3,867
Non-compete
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)		1 year
Gross Carrying Amount		$ 283
Accumulated Amortization		(273)
Net Book Value		$ 10
Patents
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	4 years	5 years
Gross Carrying Amount	$ 600	$ 600
Accumulated Amortization	(257)	(236)
Net Book Value	$ 343	$ 364

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Estimated Future Amortization Expense (Detail) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
2023	$ 4,400
2024	5,635
2025	5,402
2026	5,007
2027	4,131
2028 and thereafter	10,272
Total	$ 34,847	$ 36,320

Earnings Per Share - Details of

Earnings Per Share - Details of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net loss	$ (6,887)	$ (7,002)
Denominator:
Weighted average shares outstanding – basic (in shares)	61,646	54,501
Potential common shares - options / warrants (treasury stock method) and convertible notes (in shares)	0	0
Weighted average shares outstanding – diluted (in shares)	61,646	54,501
Shares excluded (anti-dilutive) (in shares)	8,032	1,024
Net loss per common share:
Basic (in dollars per share)	$ (0.11)	$ (0.13)
Diluted (in dollars per share)	$ (0.11)	$ (0.13)

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
	Mar. 31, 2023	Mar. 31, 2022
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	8,032	1,024
Convertible notes, as if converted
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	4,473	0
Outstanding stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	95	131
Outstanding warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	3,464	893

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Plans (Detail) - shares	3 Months Ended
	Mar. 31, 2023	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)	1,358,000
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)	900,000
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	3 Months Ended
	Mar. 31, 2023 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	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	$ 945	$ 1,065
Unrecognized compensation costs	8,300
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	162	83
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	224	261
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	$ 559	$ 721

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of outstanding stock options (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Shares
Outstanding at beginning of period (in shares)	139
Forfeited (in shares)	(18)
Outstanding at end of period (in shares)	121
Vested and expected to vest (in shares)	120
Exercisable (in shares)	112
Weighted Avg. Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 3.75
Forfeited (in dollars per share)	4.31
Outstanding at end of period (in dollars per share)	3.66
Vested and expected to vest (in dollars per share)	3.65
Exercisable (in dollars per share)	$ 3.58
Additional disclosures
Wtd. Avg. Remaining Contractual Life (Yrs), Outstanding	4 years 9 months
Wtd. Avg. Remaining Contractual Life (Yrs), Vested and expected to vest	4 years 8 months 23 days
Wtd. Avg. Remaining Contractual Life (Yrs), Exercisable	4 years 6 months 7 days
Aggregate Intrinsic Value, Forfeited	$ 7
Aggregate Intrinsic Value, Outstanding	0	$ 6
Aggregate Intrinsic Value, Vested and expected to vest	0
Aggregate Intrinsic Value, Exercisable	$ 0

Stock-Based Compensation - Su_2

Stock-Based Compensation - Summary of restricted stock awards outstanding (Details) - Restricted stock shares in Thousands	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Shares
Unvested at beginning of period (in shares) | shares	1,679
Granted (in shares) | shares	1,358
Vested (in shares) | shares	(316)
Canceled and forfeited (in shares) | shares	(94)
Unvested at end of period (in shares) | shares	2,627
Weighted average grant date fair value
Unvested at beginning of period (in dollars per share) | $ / shares	$ 3.23
Granted (in dollars per share) | $ / shares	1.63
Vested (in dollars per share) | $ / shares	4.30
Canceled and forfeited (in dollars per share) | $ / shares	3.75
Unvested at end of period (in dollars per share) | $ / shares	$ 4.75

Revenues - Schedule of Revenues

Revenues - Schedule of Revenues on Disaggregated Basis (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation Of Revenue [Line Items]
Revenues	$ 10,930	$ 12,735
Wireless
Disaggregation Of Revenue [Line Items]
Revenues	10,930	12,735
Wireless | License and service fees
Disaggregation Of Revenue [Line Items]
Revenues	1,000	828
Wireless | Hosted environment usage fees
Disaggregation Of Revenue [Line Items]
Revenues	819	1,429
Wireless | Cloud based usage fees
Disaggregation Of Revenue [Line Items]
Revenues	8,677	9,878
Wireless | Consulting services and other
Disaggregation Of Revenue [Line Items]
Revenues	$ 434	$ 600

Segment, Customer Concentrati_3

Segment, Customer Concentration and Geographical Information - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2023 location businessUnit	Mar. 31, 2022 location
Revenue, Major Customer [Line Items]
Number of primary business units | businessUnit	1
Number of geographic locations | location	2	2
Customer Concentration Risk | Revenues | Customer one
Revenue, Major Customer [Line Items]
Concentration percentage	37%	40%
Customer Concentration Risk | Revenues | Customer two
Revenue, Major Customer [Line Items]
Concentration percentage	37%	37%
Customer Concentration Risk | Revenues | Customer three
Revenue, Major Customer [Line Items]
Concentration percentage	14%	10%
Customer Concentration Risk | Accounts receivable | Customer one
Revenue, Major Customer [Line Items]
Concentration percentage	37%	36%
Customer Concentration Risk | Accounts receivable | Customer two
Revenue, Major Customer [Line Items]
Concentration percentage	34%	35%
Customer Concentration Risk | Accounts receivable | Customer three
Revenue, Major Customer [Line Items]
Concentration percentage	17%	12%
Customer Concentration Risk | Accounts receivable | Customer four
Revenue, Major Customer [Line Items]
Concentration percentage		11%

Segment, Customer Concentrati_4

Segment, Customer Concentration and Geographical Information - Wireless Revenues by Product (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue from External Customer [Line Items]
Total revenues	$ 10,930	$ 12,735
Wireless
Revenue from External Customer [Line Items]
Total revenues	10,930	12,735
Wireless | Family Safety
Revenue from External Customer [Line Items]
Total revenues	9,089	10,366
Wireless | CommSuite
Revenue from External Customer [Line Items]
Total revenues	826	1,430
Wireless | ViewSpot
Revenue from External Customer [Line Items]
Total revenues	$ 1,015	$ 939

Segment, Customer Concentrati_5

Segment, Customer Concentration and Geographical Information - Company Revenue in Different Geographic Locations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Revenue from External Customer [Line Items]
Total revenues	$ 10,930	$ 12,735
Americas | Geographical components
Revenue from External Customer [Line Items]
Total revenues	10,511	12,193
EMEA | Geographical components
Revenue from External Customer [Line Items]
Total revenues	$ 419	$ 542

Leases - Summary of Operating L

Leases - Summary of Operating Lease Cost (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Lease, Cost [Abstract]
Lease cost	$ 410	$ 434
Sublease income	0	(18)
Total lease cost	$ 410	$ 416

Leases - Summary of Maturity of

Leases - Summary of Maturity of Operating Lease Liabilities (Detail) $ in Thousands	Mar. 31, 2023 USD ($)
Lessee, Operating Lease, Liability, to be Paid [Abstract]
2023	$ 1,670
2024	1,519
2025	1,162
2026	479
Total lease payments	4,830
Less imputed interest	784
Present value of lease liabilities	$ 4,046

Leases - Summary of Additional

Leases - Summary of Additional Information Relating to Company's Operating Leases (Detail)	Mar. 31, 2023
Leases [Abstract]
Weighted average remaining lease term (years)	2 years 10 months 6 days
Weighted average discount rate	6.20%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) $ in Millions	Mar. 31, 2023 USD ($)
Income Tax Disclosure [Abstract]
Valuation allowance	$ (62.7)