Smith Micro Software (SMSI) 10-Q 8 May 24 2024 Q1 Quarterly report Financial data

Cover Page

Cover Page - shares	3 Months Ended
	Mar. 31, 2024	May 06, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
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		9,601,582
Entity Central Index Key	0000948708
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands		Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents		$ 6,155	$ 7,125
Accounts receivable, net of related allowances of $3 and $3 at 2024 and 2023, respectively		4,301	7,912
Prepaid expenses and other current assets		1,800	1,843
Total current assets		12,256	16,880
Equipment and improvements, net		790	883
Right-of-use assets		3,147	2,759
Other assets		480	482
Intangible assets, net		27,715	29,532
Goodwill		11,052	35,041
Total assets		55,440	85,577
Current liabilities:
Accounts payable		2,218	2,522
Accrued payroll and benefits		2,653	2,500
Current operating lease liabilities		1,272	1,483
Other current liabilities		1,048	1,137
Total current liabilities		7,191	7,642
Non-current liabilities:
Warrant liabilities		411	597
Operating lease liabilities		2,228	1,780
Deferred tax liabilities, net		168	168
Total non-current liabilities		2,807	2,545
Commitments and contingencies
Stockholders' equity:
Common stock, par value $0.001 per share; 100,000,000 shares authorized; 9,601,504 and 9,347,979 shares issued and outstanding 2024 and 2023, respectively*	[1]	10	9
Additional paid-in capital		382,387	381,329
Accumulated comprehensive deficit		(336,955)	(305,948)
Total stockholders’ equity		45,442	75,390
Total liabilities and stockholders' equity		$ 55,440	$ 85,577
[1] *After giving effect to the Reverse Stock Split (as defined in Note 1).

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
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)	9,601,504	9,347,979
Common stock, shares outstanding (in shares)	9,601,504	9,347,979

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Revenues		$ 5,798	$ 10,930
Cost of revenues (including depreciation of $6 and $14 in the three months ended March 31, 2024 and 2023, respectively)		1,988	3,282
Gross profit		3,810	7,648
Operating expenses:
Selling and marketing		2,614	3,554
Research and development		3,989	5,868
General and administrative		2,756	3,475
Depreciation and amortization		1,908	1,686
Goodwill impairment		23,989	0
Total operating expenses		35,256	14,583
Operating loss		(31,446)	(6,935)
Other income (expense):
Change in fair value of warrant and derivative liabilities		185	2,984
Loss on derecognition of debt		0	(627)
Interest income (expense), net		74	(2,260)
Other income (expense), net		219	(40)
Loss before provision for income taxes		(30,968)	(6,878)
Provision for income tax expense		39	9
Net loss		$ (31,007)	$ (6,887)
Loss per share:
Basic (in dollars per share)	[1]	$ (3.28)	$ (0.97)
Diluted (in dollars per share)	[1]	$ (3.28)	$ (0.97)
Weighted average shares outstanding:
Basic (in shares)	[1]	9,466	7,121
Diluted (in shares)	[1]	9,466	7,121
[1] *After giving effect to the Reverse Stock Split.

Consolidated Statements of Op_2

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Income Statement [Abstract]
Depreciation	$ 6	$ 14

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, 2022	[1]		7,025,000
BALANCE, at beginning of period at Dec. 31, 2022		$ 76,379	$ 7		$ 357,924	$ (281,552)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")		9			9
Restricted stock grants, net of cancellations (in shares)	[1]		158,000
Restricted stock grants, net of cancellations		934			934
Cancellation of shares for payment of withholding tax (in shares)	[1]		(14,000)
Cancellation of shares for payment of withholding tax		(211)			(211)
ESPP shares issued (in shares)	[1]		1,000
ESPP shares issued		8			8
Employee stock purchase plan expense		2			2
Common shares issued in settlement and prepayment of notes payable (in shares)	[1]		405,000
Common shares issued in settlement and prepayment of notes payable		3,650	$ 1		3,649
Net loss		(6,887)				(6,887)
BALANCE, at end of period (in shares) at Mar. 31, 2023	[1]		7,575,000
BALANCE, at end of period at Mar. 31, 2023		$ 73,884	$ 8		362,315	(288,439)
BALANCE, at beginning of period (in shares) at Dec. 31, 2023		9,347,979	9,348,000	[2]
BALANCE, at beginning of period at Dec. 31, 2023		$ 75,390	$ 9		381,329	(305,948)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Non-cash compensation recognized on stock options and employee stock purchase plan ("ESPP")		6			6
Restricted stock grants, net of cancellations (in shares)	[2]		266,000
Restricted stock grants, net of cancellations		1,130	$ 1		1,129
Cancellation of shares for payment of withholding tax (in shares)	[2]		(13,000)
Cancellation of shares for payment of withholding tax		(79)			(79)
ESPP shares issued (in shares)	[2]		1,000
ESPP shares issued		2			2
Net loss		$ (31,007)				(31,007)
BALANCE, at end of period (in shares) at Mar. 31, 2024		9,601,504	9,602,000	[2]
BALANCE, at end of period at Mar. 31, 2024		$ 45,442	$ 10		$ 382,387	$ (336,955)
[1] *After giving effect to the Reverse Stock Split. *After giving effect to the Reverse Stock Split.

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Operating activities:
Net loss	$ (31,007)	$ (6,887)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	1,914	1,700
Goodwill impairment charge	23,989	0
Non-cash lease expense	(151)	(27)
Change in fair value of warrant and derivative liabilities	(185)	(2,984)
Loss on derecognition of debt	0	627
Amortization of debt discount and issuance costs	0	2,117
Stock based compensation	1,136	945
Gain on license of patents, net	(198)	0
Gain on disposal of assets	0	(3)
Changes in operating accounts:
Accounts receivable	3,611	(685)
Prepaid expenses and other assets	44	164
Accounts payable and accrued liabilities	(469)	(65)
Other liabilities	(29)	(237)
Net cash used in operating activities	(1,345)	(5,335)
Investing activities:
Capital expenditures, net	(4)
Capital expenditures, net		3
Proceeds from license of patents, net	198	0
Net cash provided by investing activities	194	3
Financing activities:
Proceeds from financing arrangements	468	442
Repayments of financing arrangements	(289)	(420)
Other financing activities	2	8
Net cash provided by financing activities	181	30
Net decrease in cash and cash equivalents	(970)	(5,302)
Cash and cash equivalents, beginning of period	7,125	14,026
Cash and cash equivalents, end of period	6,155	8,724
Non-cash investing and financing activities:
Issuance of common stock in settlement and prepayment of notes payable	$ 0	$ 3,000

The Company

The Company	3 Months Ended
	Mar. 31, 2024
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 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. On April 3, 2024, the Company filed a certificate of amendment to its Amended and Restated Certificate of Incorporation with the Secretary of State of the State of Delaware to effect a one-for-eight (1:8) reverse stock split of the shares of the Company's common stock, par value $0.001 per share (the "Common Stock"), with an effective time of 11:59 p.m., Eastern Time on April 10, 2024 (the "Reverse Stock Split"). At the effective time, every eight shares of common stock, whether issued and outstanding or held by the Company as treasury stock were automatically combined and converted (without any further act) into one share of fully paid and nonassessable common stock, with any fractional shares resulting from the Reverse Stock Split rounded up to the nearest whole share. The number of outstanding shares of common stock was reduced from approximately 76.8 million shares to approximately 9.6 million shares due to the Reverse Stock Split. The Reverse Stock Split did not change the Company's authorized shares of common stock from 100,000,000 shares or the par value of the common stock, and, therefore, the Company reclassified an amount equal to the reduction in the number of shares of common stock at par value to additional paid-in-capital. Proportionate adjustments were made to the per share exercise price and/or the number of shares issuable upon the exercise of stock options and the settlement of restricted stock awards and the number of shares authorized and reserved for issuance pursuant to the Company's equity incentive plans (see Note 9). Additionally, there were adjustments to the per share exercise price and the number of shares issuable upon exercise of warrants (see Note 5). All share and per share amounts for common stock (including share amounts underlying convertible securities and the applicable exercise prices of such convertible securities) in these consolidated financial statements and notes thereto have been retroactively adjusted for all periods presented to give effect to the Reverse Stock Split, including reclassifying an amount equal to the reduction in the number of shares of common stock at par value to additional paid-in capital.

Accounting Policies

Accounting Policies	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Accounting Policies	Accounting Policies Basis of Presentation The accompanying interim consolidated balance sheet as of March 31, 2024, and the related consolidated statements of operations and stockholders’ equity for the three months ended March 31, 2024 and 2023, and the consolidated statements of cash flows for the three months ended March 31, 2024 and 2023, 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 (“U.S. 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, 2023 filed with the SEC on February 26, 2024 (the "2023 Form 10-K"). Intercompany balances and transactions have been eliminated in consolidation. Operating results for the three months ended March 31, 2024 are not necessarily indicative of the results that may be expected for any other interim period or for the fiscal year ending December 31, 2024. New Accounting Pronouncements In November 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, "Improvements to Reportable Segment Disclosures". This update was issued to improve and enhance reportable segment disclosure requirements. The amendments in this update require annual and interim disclosures on significant segment expenses that are regularly provided to the chief operating decision maker and require annual and interim disclosures on “other segment items” that comprise the difference between segment revenue less segment expense compared to the reported measure of segment profit or loss. In addition, the amendments will require all annual disclosures that are currently required to be reported on an interim basis and requires disclosure of the title and position of the chief operating decision maker and how that position uses the information to assess segment performance and the allocation of resources. ASU 2023-07 also requires entities that have a single reportable segment, such as the Company, to provide all disclosures required in this update and the existing segment disclosures in Topic 280. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of ASU 2023-07 and does not expect them to have a material effect on the consolidated financial statements. In December 2023, FASB issued ASU 2023-09, "Income Tax Disclosures". ASU 2023-09 was issued to require annual disclosures on specific categories in the income tax rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. Annual disclosures are required on income taxes paid, including the amounts paid for federal, state and foreign taxes and the amount paid in individual jurisdictions if the amount is equal to or greater than 5% of total income taxes paid (net of refunds received). Additional annual disclosures are required on pre-tax income from continuing operations and income tax expense, disaggregated by domestic and foreign amounts. The amendments in this update are effective for fiscal years beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of ASU 2023-09 and does not expect them to have a material effect on the consolidated financial statements. Reclassifications Certain reclassifications have been made to the prior year financial statements to conform to the current presentation.

Going Concern

Going Concern	3 Months Ended
	Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Going Concern	Going Concern The Company's financial statements have been presented on the basis that it is a going concern, which contemplates the realization of assets and the satisfaction of liabilities in the normal course of business. In connection with preparing interim consolidated financial statements for the three months ended March 31, 2024, certain conditions in the Company's evaluation, considered in the aggregate, have raised substantial doubt about the Company's ability to continue as a going concern within one year from the date that the financial statements are issued, which has not been alleviated. The evaluation considered the Company's financial condition, including its liquidity sources, funds necessary to maintain the Company's operations considering the current financial condition, obligations, and other expected cash flows, and negative financial trends of recurring operating losses and negative cash flows. The Company has no outstanding debt and is continuing operations and generating revenues in the normal course, however the Company is dependent, to an extent, on the timing of subscriber and revenue growth for its products and the related cash generation from that growth and/or the ability to obtain the necessary capital to meet its obligations and fund its working capital requirements to maintain normal business operations. Management believes that the actions presently being taken to implement the Company's business plan to expand subscriber growth, including dynamic marketing campaigns, to acquire new customers and to expand its offerings to existing customers to generate increased revenues, and, if necessary, to raise additional capital will support the Company's operations; as such the financial statements do not include any adjustments that may be necessary if the Company is unable to continue as a going concern. The Company believes that it would be able to raise additional funds as necessary, through public or private equity offerings, including via accessing its currently effective shelf registration, debt financings, or a combination of these funding sources as evidenced by the Company historically being able to complete debt and equity financings, however it may not be able to secure such incremental capital in a timely manner or on favorable terms, if at all. In order to preserve liquidity, the Company may also take one or more of the following additional actions: • Implement additional restructuring and cost reductions, • Secure a revolving line of credit, • Dispose of one or more product lines and/or, • Sell or license intellectual property. While management believes that the Company’s plans for growing revenue and the other potential actions available to it would alleviate the conditions that raise substantial doubt, these strategies are not entirely within the Company’s control and cannot be assessed as being probable of occurring.

Common Stock

Common Stock	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Common Stock	Common Stock On December 27, 2023, the Company received a notice (the "Notice") from the Nasdaq Stock Market ("Nasdaq") that the Company was not in compliance with the $1.00 minimum bid price requirement for continued listing, as set forth in Nasdaq Listing Rule 5550(a)(2) (the "Minimum Bid Price Requirement"), as the closing bid price of the Company’s common stock had been below $1.00 per share for more than thirty (30) consecutive business days as of the date of the Notice.

Warrant Liabilities

Warrant Liabilities	3 Months Ended
	Mar. 31, 2024
Warrants and Rights Note Disclosure [Abstract]
Warrant Liabilities	Warrant Liabilities On August 11, 2022, warrants to purchase 279,851 shares of common stock were issued with an exercise price of $26.80 per share (the "Notes Warrants") in conjunction with a notes and warrants offering (the "Notes and Warrants Offering"), at an initial fair value of $3.8 million. The related senior secured convertible notes (the "Notes") were retired at maturity at December 31, 2023. The exercise price and number of shares of Notes Warrants were immediately proportionately repriced pursuant to the Reverse Stock Split, and on May 2, 2024, due to the Reverse Stock Split the warrant exercise price for each of the Notes Warrants was further adjusted to $2.06 in accordance with their terms. Additional warrants to purchase 141,509 shares of common stock were issued on August 12, 2022 with an exercise price of $21.20 per share (the "Additional Warrants") in conjunction with a registered direct offering for the sale of shares of the Company's common stock and the Additional Warrants ("Stock and Additional Warrants Offering"). The Additional Warrants do not reprice further beyond the immediate proportionate adjustments to the per share exercise price and number of shares issuable that occurred upon and as a result of the Reverse Stock Split. All changes in the fair value of the Notes Warrant and Additional Warrants liabilities are recognized in the Company's consolidated statements of operations until they are either exercised or expire. Since issuance of the Notes Warrants and Additional Warrants, there have been no warrant exercises. The Notes Warrants and Additional Warrants are not traded in an active securities market and, as such, the estimated fair value is determined by using a Black-Scholes option pricing model which considers the likelihood of repricing adjustments and 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 Notes Warrants and Additional Warrants is likely to differ materially from historical volatility. Expected life is based on the contractual term of the applicable warrants. Below are the specific assumptions utilized: Notes Warrants March 31, 2024 December 31, 2023 Common stock market price $ 2.72 $ 6.64 Risk-free interest rate 4.29 % 4.10 % Expected dividend yield — — Expected term (in years) 3.36 3.61 Expected volatility 74.1 % 66.8 % Additional Warrants March 31, 2024 December 31, 2023 Common stock market price $ 2.72 $ 6.64 Risk-free interest rate 4.29 % 4.10 % Expected dividend yield — — Expected term (in years) 3.87 4.12 Expected volatility 71.5 % 68.7 %

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2024
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. The following table presents information about the financial liabilities that are measured at fair value on a recurring basis at March 31, 2024 and December 31, 2023 (unaudited, in thousands): Level 3 March 31, 2024 December 31, 2023 Notes Warrants $ 362 $ 334 Additional Warrants 49 263 Total $ 411 $ 597 The following tables present the changes in the fair value (unaudited, except for December 31, 2023 , and 2022, respectively, in thousands), and also includes the derivative associated with the Notes and Warrant Offering ("Notes and Warrants Offering Derivative"), which was extinguished with the retirement of the Notes on December 31, 2023: Notes Warrants Additional Warrants Total Measurement at December 31, 2023 $ 334 $ 263 $ 597 Change in fair value 28 (214) $ (186) Measurement at March 31, 2024 $ 362 $ 49 $ 411 Notes and Warrants Offering Derivative Notes 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, 2024
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 its single reporting unit goodwill at least annually or whenever events or circumstances indicate a potential impairment. 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. Recoverability of goodwill is determined by comparing the estimated fair value of reporting units to the carrying value of the underlying net assets in the reporting units. If the estimated fair value of a reporting unit is determined to be less than the fair 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 estimated fair value of the reporting unit and the fair value of its other assets and liabilities. During the three months ended March 31, 2024, as a result of the sustained decrease in the Company's common stock share price and overall market capitalization subsequent to February 23, 2024, management concluded that a triggering event occurred, indicating goodwill may be impaired. The Company conducted a quantitative impairment test of its goodwill as of February 29, 2024 and as a result of this interim assessment, the Company recorded a goodwill impairment charge totaling $24.0 million during the three months ended March 31, 2024. Subsequent to this write-down, the fair value of the Company's single reporting unit approximated its carrying value. The fair value of the reporting unit was determined utilizing level 3 inputs (including estimates of revenue growth, earnings before interest taxes depreciation and amortization ("EBITDA") contribution and discount rates) and a combination of the income approach using the estimated discounted cash flows and a market-based valuation methodology. If current projections are not achieved or specific valuation factors outside the Company's control, such as discount rates and continued economic and industry challenges, significantly change, goodwill could be subject to future impairment. The components of the Company’s intangible assets were as follows for the periods presented: March 31, 2024 (in thousands, except for useful life data) Weighted Average Gross Carrying Amount Accumulated Net Book Value Purchased technology 5 $ 13,330 $ (7,624) $ 5,706 Customer relationships 11 27,548 (9,235) 18,313 Customer contracts 1 7,000 (6,434) 566 Software license 5 5,419 (2,546) 2,873 Patents 3 600 (343) 257 Total $ 53,897 $ (26,182) $ 27,715 December 31, 2023 (in thousands, except for useful life data) Weighted Average Gross Carrying Amount Accumulated Net Book Value Purchased technology 5 $ 13,330 $ (7,243) $ 6,087 Customer relationships 11 27,548 (8,111) 19,437 Customer contracts 1 7,000 (6,337) 663 Software license 6 5,419 (2,353) 3,066 Patents 3 600 (321) 279 Total $ 53,897 $ (24,365) $ 29,532 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 nine years as of both March 31, 2024 and December 31, 2023. During the three months ended March 31, 2024 and 2023, intangible asset amortization expense was $1.8 million and $1.5 million, respectively. As of March 31, 2024, estimated amortization expense for the remainder of 2024 and thereafter was as follows (unaudited, in thousands): Year Ending December 31, Amortization Expense 2024 $ 4,119 2025 5,106 2026 4,709 2027 3,834 2028 2,790 2029 and thereafter 7,157 Total $ 27,715

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2024
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, 2024 2023 Numerator: Net loss $ (31,007) $ (6,887) Denominator: Weighted average shares outstanding – basic 9,466 7,121 Potential common shares – options / warrants (treasury stock method) and convertible notes (as if converted method) — — Weighted average shares outstanding – diluted 9,466 7,121 Shares excluded (anti-dilutive) 431 1,004 Net loss per common share: Basic $ (3.28) $ (0.97) Diluted $ (3.28) $ (0.97) 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, 2024 2023 Convertible notes, as if converted — 559 Outstanding stock options 10 12 Outstanding warrants 421 433 Total anti-dilutive shares 431 1,004

Stock-Based Compensation

Stock-Based Compensation	3 Months Ended
	Mar. 31, 2024
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based Compensation Stock Plans During the three months ended March 31, 2024, the Company granted 0.3 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, June 9, 2020, and June 6, 2023. 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, 2024, there were approximately 0.1 million shares available for future grants under the Company’s 2015 OEIP. Certain options issued under the 2005 Plan remain outstanding currently, but no new grants have been made under the 2005 Plan since the adoption of the 2015 OEIP. The maximum number of shares of the Company’s common stock available for issuance over the term of the 2015 OEIP may not exceed 1,203,125 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 awards terminate, and all vested stock options may be exercised within a period of 90 days following termination of employment. 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, however in the quarters ended September 30, 2023 and March 31, 2024, there were new grants issued with tranched vesting periods of 2 to 7 months. Employee Stock Purchase Plan The Company has a stockholder 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 the lower of the fair market values of the stock as of the beginning and end of six-month offering periods. 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 31 shares for any purchase period. Additionally, no more than 31,250 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, 2024 2023 Sales and marketing $ 309 $ 162 Research and development 264 224 General and administrative 563 559 Total non-cash stock compensation expense $ 1,136 $ 945 As of March 31, 2024, there was approximately $5.4 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, 2024 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, 2023 10 $ 26.42 3.9 $ — Forfeited — 15.04 — — Outstanding as of March 31, 2024 10 $ 26.48 3.6 $ — Vested and expected to vest at March 31, 2024 10 $ 26.45 3.6 $ — Exercisable as of March 31, 2024 9 $ 25.91 3.4 $ — Restricted Stock Awards A summary of the Company’s restricted stock awards outstanding under the 2015 OEIP for the three months ended March 31, 2024 are as follows (unaudited, in thousands, except weighted average grant date fair value): Shares Weighted average grant date fair value Unvested at December 31, 2023 255 $ 21.29 Granted 275 6.46 Vested (69) 18.68 Canceled and forfeited (9) 11.49 Unvested at March 31, 2024 452 $ 12.84

Revenues

Revenues	3 Months Ended
	Mar. 31, 2024
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 upon their active subscribers’ access and usage of Smith Micro’s software licenses and cloud-based services on Smith Micro’s platforms or satisfaction of the performance obligations as indicated in the contracts. 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, 2024 2023 License and service fees $ 777 $ 1,000 Hosted environment usage fees 665 819 Cloud based usage fees 4,025 8,677 Consulting services and other 331 434 Total revenues $ 5,798 $ 10,930

Segment, Customer Concentration

Segment, Customer Concentration and Geographical Information	3 Months Ended
	Mar. 31, 2024
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, 2024 2023 Family Safety $ 4,464 $ 9,089 CommSuite 665 826 ViewSpot 669 1,015 Total Wireless revenues $ 5,798 $ 10,930 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, 2024, three customers made up 54%, 18% and 11% of revenues. For the three months ended March 31, 2023, three customers made up 37%, 37% and 14% of revenues. As of March 31, 2024, two customers accounted for 51% and 21%, of accounts receivable. As of March 31, 2023, three customers accounted for 37%, 34%, and 17% of accounts receivable. Geographical Information During the three months ended March 31, 2024 and 2023, 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, 2024 2023 Americas $ 5,477 $ 10,511 EMEA 321 419 Total revenues $ 5,798 $ 10,930 The Company does not separately allocate specific assets to these geographic locations.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2024
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, 2024
Leases [Abstract]
Leases	Leases The Company leases office space and equipment. 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 costs were $0.4 million and $0.4 million for the three months ended March 31, 2024 and 2023, respectively. During the three months ended March 31, 2024, the Company recognized a noncash increase for the right-of-use asset obtained in exchange for the new operating lease liability due to a lease renewal in the amount of $1.0 million. There were no such transactions during the three months ended March 31, 2023. The maturity of operating lease liabilities is presented in the following table (unaudited, in thousands): As of March 31, 2024 2024 $ 1,149 2025 1,399 2026 906 2027 359 2028 61 Total lease payments 3,874 Less imputed interest 374 Present value of lease liabilities $ 3,500 Additional information relating to the Company’s operating leases follows (unaudited): As of March 31, 2024 Weighted average remaining lease term (years) 2.62 Weighted average discount rate 7.3 %

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2024
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 given to evidence that can be objectively verified. Realization of deferred tax assets is dependent upon the generation of future taxable income. As required by ASC 740, Smith Micro has evaluated the positive and negative evidence bearing upon its ability to realize the deferred tax assets and determined that it was more likely than not that the Company would not realize the deferred tax assets due to the Company's cumulative losses and uncertain near-term market and economic conditions, which reduce 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 March 31, 2024, and after consideration of the Company’s cumulative loss position as of December 31, 2023, the Company will continue to reserve its U.S.-based deferred tax amounts, which total $58.5 million as of March 31, 2024. The Company is subject to U.S. federal income tax as well as income tax of multiple state jurisdictions. The Company is no longer subject to examination for U.S. federal income tax returns for years before December 31, 2019 and for state income tax returns, the Company is no longer subject to examination for years before December 31, 2018. As of March 31, 2024, 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	3 Months Ended
	Mar. 31, 2024
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events The Company evaluates and discloses subsequent events as required by FASB ASC Topic No. 855, Subsequent Events

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Pay vs Performance Disclosure
Net loss	$ (31,007)	$ (6,887)

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Accounting Policies (Policies)

Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation	The accompanying interim consolidated balance sheet as of March 31, 2024, and the related consolidated statements of operations and stockholders’ equity for the three months ended March 31, 2024 and 2023, and the consolidated statements of cash flows for the three months ended March 31, 2024 and 2023, 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 (“U.S. 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, 2023 filed with the SEC on February 26, 2024 (the "2023 Form 10-K"). Intercompany balances and transactions have been eliminated in consolidation.
New Accounting Pronouncements	In November 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2023-07, "Improvements to Reportable Segment Disclosures". This update was issued to improve and enhance reportable segment disclosure requirements. The amendments in this update require annual and interim disclosures on significant segment expenses that are regularly provided to the chief operating decision maker and require annual and interim disclosures on “other segment items” that comprise the difference between segment revenue less segment expense compared to the reported measure of segment profit or loss. In addition, the amendments will require all annual disclosures that are currently required to be reported on an interim basis and requires disclosure of the title and position of the chief operating decision maker and how that position uses the information to assess segment performance and the allocation of resources. ASU 2023-07 also requires entities that have a single reportable segment, such as the Company, to provide all disclosures required in this update and the existing segment disclosures in Topic 280. The amendments in this update are effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of ASU 2023-07 and does not expect them to have a material effect on the consolidated financial statements. In December 2023, FASB issued ASU 2023-09, "Income Tax Disclosures". ASU 2023-09 was issued to require annual disclosures on specific categories in the income tax rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. Annual disclosures are required on income taxes paid, including the amounts paid for federal, state and foreign taxes and the amount paid in individual jurisdictions if the amount is equal to or greater than 5% of total income taxes paid (net of refunds received). Additional annual disclosures are required on pre-tax income from continuing operations and income tax expense, disaggregated by domestic and foreign amounts. The amendments in this update are effective for fiscal years beginning after December 15, 2024. The Company is evaluating the accounting and disclosure requirements of ASU 2023-09 and does not expect them to have a material effect on the 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 given to evidence that can be objectively verified. Realization of deferred tax assets is dependent upon the generation of future taxable income. As required by ASC 740, Smith Micro has evaluated the positive and negative evidence bearing upon its ability to realize the deferred tax assets and determined that it was more likely than not that the Company would not realize the deferred tax assets due to the Company's cumulative losses and uncertain near-term market and economic conditions, which reduce the Company’s ability to rely on projections of future taxable income in assessing the realizability of its deferred tax assets.

Warrant Liabilities (Tables)

Warrant Liabilities (Tables)	3 Months Ended
	Mar. 31, 2024
Warrants and Rights Note Disclosure [Abstract]
Summary of Assumptions Utilized	Below are the specific assumptions utilized: Notes Warrants March 31, 2024 December 31, 2023 Common stock market price $ 2.72 $ 6.64 Risk-free interest rate 4.29 % 4.10 % Expected dividend yield — — Expected term (in years) 3.36 3.61 Expected volatility 74.1 % 66.8 % Additional Warrants March 31, 2024 December 31, 2023 Common stock market price $ 2.72 $ 6.64 Risk-free interest rate 4.29 % 4.10 % Expected dividend yield — — Expected term (in years) 3.87 4.12 Expected volatility 71.5 % 68.7 %

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2024
Fair Value Disclosures [Abstract]
Schedule 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, 2024 and December 31, 2023 (unaudited, in thousands): Level 3 March 31, 2024 December 31, 2023 Notes Warrants $ 362 $ 334 Additional Warrants 49 263 Total $ 411 $ 597
Schedule of Changes in Fair Value	The following tables present the changes in the fair value (unaudited, except for December 31, 2023 , and 2022, respectively, in thousands), and also includes the derivative associated with the Notes and Warrant Offering ("Notes and Warrants Offering Derivative"), which was extinguished with the retirement of the Notes on December 31, 2023: Notes Warrants Additional Warrants Total Measurement at December 31, 2023 $ 334 $ 263 $ 597 Change in fair value 28 (214) $ (186) Measurement at March 31, 2024 $ 362 $ 49 $ 411 Notes and Warrants Offering Derivative Notes 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, 2024
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, 2024 (in thousands, except for useful life data) Weighted Average Gross Carrying Amount Accumulated Net Book Value Purchased technology 5 $ 13,330 $ (7,624) $ 5,706 Customer relationships 11 27,548 (9,235) 18,313 Customer contracts 1 7,000 (6,434) 566 Software license 5 5,419 (2,546) 2,873 Patents 3 600 (343) 257 Total $ 53,897 $ (26,182) $ 27,715 December 31, 2023 (in thousands, except for useful life data) Weighted Average Gross Carrying Amount Accumulated Net Book Value Purchased technology 5 $ 13,330 $ (7,243) $ 6,087 Customer relationships 11 27,548 (8,111) 19,437 Customer contracts 1 7,000 (6,337) 663 Software license 6 5,419 (2,353) 3,066 Patents 3 600 (321) 279 Total $ 53,897 $ (24,365) $ 29,532
Estimated Future Amortization Expense	As of March 31, 2024, estimated amortization expense for the remainder of 2024 and thereafter was as follows (unaudited, in thousands): Year Ending December 31, Amortization Expense 2024 $ 4,119 2025 5,106 2026 4,709 2027 3,834 2028 2,790 2029 and thereafter 7,157 Total $ 27,715

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2024
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, 2024 2023 Numerator: Net loss $ (31,007) $ (6,887) Denominator: Weighted average shares outstanding – basic 9,466 7,121 Potential common shares – options / warrants (treasury stock method) and convertible notes (as if converted method) — — Weighted average shares outstanding – diluted 9,466 7,121 Shares excluded (anti-dilutive) 431 1,004 Net loss per common share: Basic $ (3.28) $ (0.97) Diluted $ (3.28) $ (0.97)
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, 2024 2023 Convertible notes, as if converted — 559 Outstanding stock options 10 12 Outstanding warrants 421 433 Total anti-dilutive shares 431 1,004

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2024
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, 2024 2023 Sales and marketing $ 309 $ 162 Research and development 264 224 General and administrative 563 559 Total non-cash stock compensation expense $ 1,136 $ 945
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, 2024 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, 2023 10 $ 26.42 3.9 $ — Forfeited — 15.04 — — Outstanding as of March 31, 2024 10 $ 26.48 3.6 $ — Vested and expected to vest at March 31, 2024 10 $ 26.45 3.6 $ — Exercisable as of March 31, 2024 9 $ 25.91 3.4 $ —
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, 2024 are as follows (unaudited, in thousands, except weighted average grant date fair value): Shares Weighted average grant date fair value Unvested at December 31, 2023 255 $ 21.29 Granted 275 6.46 Vested (69) 18.68 Canceled and forfeited (9) 11.49 Unvested at March 31, 2024 452 $ 12.84

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2024
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, 2024 2023 License and service fees $ 777 $ 1,000 Hosted environment usage fees 665 819 Cloud based usage fees 4,025 8,677 Consulting services and other 331 434 Total revenues $ 5,798 $ 10,930

Segment, Customer Concentrati_2

Segment, Customer Concentration and Geographical Information (Tables)	3 Months Ended
	Mar. 31, 2024
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, 2024 2023 Family Safety $ 4,464 $ 9,089 CommSuite 665 826 ViewSpot 669 1,015 Total Wireless revenues $ 5,798 $ 10,930
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, 2024 2023 Americas $ 5,477 $ 10,511 EMEA 321 419 Total revenues $ 5,798 $ 10,930

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2024
Leases [Abstract]
Schedule 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, 2024 2024 $ 1,149 2025 1,399 2026 906 2027 359 2028 61 Total lease payments 3,874 Less imputed interest 374 Present value of lease liabilities $ 3,500
Schedule of Additional Information Relating to Company's Operating Leases	Additional information relating to the Company’s operating leases follows (unaudited): As of March 31, 2024 Weighted average remaining lease term (years) 2.62 Weighted average discount rate 7.3 %

The Company (Details)

The Company (Details)	Apr. 10, 2024 shares	Apr. 11, 2024 shares	Apr. 03, 2024 $ / shares	Mar. 31, 2024 $ / shares shares	Dec. 31, 2023 $ / shares shares
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Common stock, par value (in dollars per share) | $ / shares				$ 0.001	$ 0.001
Common stock, shares outstanding (in shares)				9,601,504	9,347,979
Common stock, shares authorized (in shares)				100,000,000	100,000,000
Subsequent Event
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Reverse stock split ratio	0.125
Common stock, par value (in dollars per share) | $ / shares			$ 0.001
Common stock, shares outstanding (in shares)	76,800,000	9,600,000

Warrant Liabilities - Additiona

Warrant Liabilities - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	May 02, 2024	Mar. 31, 2024	Dec. 31, 2023	Aug. 11, 2022
Line Of Credit Facility [Line Items]
Warrant liabilities		$ 411	$ 597
Outstanding warrants
Line Of Credit Facility [Line Items]
Warrant liabilities				$ 3,800
Outstanding warrants | Notes Warrants
Line Of Credit Facility [Line Items]
Aggregate number of warrants (in shares)				279,851
Exercise price (in dollars per share)				$ 26.80
Outstanding warrants | Notes Warrants | Subsequent Event
Line Of Credit Facility [Line Items]
Exercise price (in dollars per share)	$ 2.06
Additional Warrants | Additional Warrants
Line Of Credit Facility [Line Items]
Aggregate number of warrants (in shares)				141,509
Exercise price (in dollars per share)				$ 21.20

Warrant Liabilities - Assumptio

Warrant Liabilities - Assumptions (Details)	Mar. 31, 2024 yr $ / shares	Dec. 31, 2023 $ / shares yr
Outstanding warrants | Common stock market price
Line Of Credit Facility [Line Items]
Measurement input, warrants | $ / shares	2.72	6.64
Outstanding warrants | Risk-free interest rate
Line Of Credit Facility [Line Items]
Measurement input, warrants	0.0429	0.0410
Outstanding warrants | Expected dividend yield
Line Of Credit Facility [Line Items]
Measurement input, warrants	0	0
Outstanding warrants | Expected term (in years)
Line Of Credit Facility [Line Items]
Measurement input, warrants | yr	3.36	3.61
Outstanding warrants | Expected volatility
Line Of Credit Facility [Line Items]
Measurement input, warrants	0.741	0.668
Additional Warrants | Common stock market price
Line Of Credit Facility [Line Items]
Measurement input, warrants | $ / shares	2.72	6.64
Additional Warrants | Risk-free interest rate
Line Of Credit Facility [Line Items]
Measurement input, warrants	0.0429	0.0410
Additional Warrants | Expected dividend yield
Line Of Credit Facility [Line Items]
Measurement input, warrants	0	0
Additional Warrants | Expected term (in years)
Line Of Credit Facility [Line Items]
Measurement input, warrants | yr	3.87	4.12
Additional Warrants | Expected volatility
Line Of Credit Facility [Line Items]
Measurement input, warrants	0.715	0.687

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Liabilities Measured at Fair Value on a Recurring Basis (Details) - Level 3 - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Total	$ 411	$ 597
Additional Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Warrants	49	263
Notes and Warrants Offering Derivative | Notes Warrants
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Derivatives	$ 362	$ 334

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Notes Warrants
Balance at beginning of period	$ 334	$ 1,575
Change in fair value		(1,021)
Derecognition of debt		(22)
Balance at end of period	362	532
Total
Balance at beginning of period	597	4,892
Change in fair value	(186)	(2,984)
Derecognition of debt		(22)
Balance at end of period	411	1,886
Notes Warrants
Notes Warrants
Change in fair value	28
Additional Warrants
Balance at beginning of period		2,052
Change in fair value		(1,222)
Balance at end of period		830
Additional Warrants
Additional Warrants
Balance at beginning of period	263	1,265
Change in fair value	(214)	(741)
Balance at end of period	$ 49	$ 524

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill impairment	$ 23,989	$ 0
Weighted average useful life	9 years
Intangible asset amortization expense	$ 1,800	$ 1,500

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Components of Intangible Assets (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 53,897	$ 53,897
Accumulated Amortization	(26,182)	(24,365)
Net Book Value	$ 27,715	$ 29,532
Purchased technology
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	5 years	5 years
Gross Carrying Amount	$ 13,330	$ 13,330
Accumulated Amortization	(7,624)	(7,243)
Net Book Value	$ 5,706	$ 6,087
Customer relationships
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	11 years	11 years
Gross Carrying Amount	$ 27,548	$ 27,548
Accumulated Amortization	(9,235)	(8,111)
Net Book Value	$ 18,313	$ 19,437
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	(6,434)	(6,337)
Net Book Value	$ 566	$ 663
Software license
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	5 years	6 years
Gross Carrying Amount	$ 5,419	$ 5,419
Accumulated Amortization	(2,546)	(2,353)
Net Book Value	$ 2,873	$ 3,066
Patents
Finite Lived Intangible Assets [Line Items]
Weighted Average Remaining Useful Life (in Years)	3 years	3 years
Gross Carrying Amount	$ 600	$ 600
Accumulated Amortization	(343)	(321)
Net Book Value	$ 257	$ 279

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Estimated Future Amortization Expense (Detail) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
2024	$ 4,119
2025	5,106
2026	4,709
2027	3,834
2028	2,790
2029 and thereafter	7,157
Total	$ 27,715	$ 29,532

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, 2024	Mar. 31, 2023
Numerator:
Net loss		$ (31,007)	$ (6,887)
Denominator:
Weighted average shares outstanding – basic (in shares)	[1]	9,466	7,121
Potential common shares - options / warrants (treasury stock method) and convertible notes (as if converted method) (in shares)		0	0
Weighted average shares outstanding – diluted (in shares)	[1]	9,466	7,121
Shares excluded (anti-dilutive) (in shares)		431	1,004
Net loss per common share:
Basic (in dollars per share)	[1]	$ (3.28)	$ (0.97)
Diluted (in dollars per share)	[1]	$ (3.28)	$ (0.97)
[1] *After giving effect to the Reverse Stock Split.

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, 2024	Mar. 31, 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	431	1,004
Convertible notes, as if converted
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	0	559
Outstanding stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	10	12
Outstanding warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Shares excluded (anti-dilutive) (in shares)	421	433

Stock-Based Compensation - Stoc

Stock-Based Compensation - Stock Plans (Detail) - shares	3 Months Ended
	Mar. 31, 2024	Sep. 30, 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)			1,203,125
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	7 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	2 months
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock, granted (in shares)	275,000
Restricted stock | 2015 Omnibus Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for future grants (in shares)	100,000
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, 2024 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum value of shares available for purchase per employee | $	$ 25,000
Maximum number of shares available for purchase per employee (in shares)	31
Number of shares authorized (in shares)	31,250
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, 2024	Mar. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	$ 1,136	$ 945
Unrecognized compensation costs	5,400
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	309	162
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	264	224
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total non-cash stock compensation expense	$ 563	$ 559

Stock-Based Compensation - Summ

Stock-Based Compensation - Summary of Outstanding Stock Options (Details) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended	12 Months Ended
	Apr. 10, 2024	Mar. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning of period (in shares) | shares		10
Forfeited (in shares) | shares		0
Outstanding at end of period (in shares) | shares		10	10
Vested and expected to vest (in shares) | shares		10
Exercisable (in shares) | shares		9
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Outstanding at beginning of period (in dollars per share) | $ / shares		$ 26.42
Forfeited (in dollars per share) | $ / shares		15.04
Outstanding at end of period (in dollars per share) | $ / shares		26.48	$ 26.42
Vested and expected to vest (in dollars per share) | $ / shares		26.45
Exercisable (in dollars per share) | $ / shares		$ 25.91
Additional disclosures
Wtd. Avg. Remaining Contractual Life (Yrs), Outstanding		3 years 7 months 6 days	3 years 10 months 24 days
Wtd. Avg. Remaining Contractual Life (Yrs), Vested and expected to vest		3 years 7 months 6 days
Wtd. Avg. Remaining Contractual Life (Yrs), Exercisable		3 years 4 months 24 days
Aggregate Intrinsic Value, Outstanding | $		$ 0	$ 0
Aggregate Intrinsic Value, Forfeited | $		0
Aggregate Intrinsic Value, Vested and expected to vest | $		0
Aggregate Intrinsic Value, Exercisable | $		$ 0
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reverse stock split ratio	0.125

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, 2024 $ / shares shares
Shares
Unvested at beginning of period (in shares) | shares	255
Granted (in shares) | shares	275
Vested (in shares) | shares	(69)
Canceled and forfeited (in shares) | shares	(9)
Unvested at end of period (in shares) | shares	452
Weighted average grant date fair value
Unvested at beginning of period (in dollars per share) | $ / shares	$ 21.29
Granted (in dollars per share) | $ / shares	6.46
Vested (in dollars per share) | $ / shares	18.68
Canceled and forfeited (in dollars per share) | $ / shares	11.49
Unvested at end of period (in dollars per share) | $ / shares	$ 12.84

Revenues - Schedule of Revenues

Revenues - Schedule of Revenues on Disaggregated Basis (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation Of Revenue [Line Items]
Revenues	$ 5,798	$ 10,930
Wireless
Disaggregation Of Revenue [Line Items]
Revenues	5,798	10,930
Wireless | License and service fees
Disaggregation Of Revenue [Line Items]
Revenues	777	1,000
Wireless | Hosted environment usage fees
Disaggregation Of Revenue [Line Items]
Revenues	665	819
Wireless | Cloud based usage fees
Disaggregation Of Revenue [Line Items]
Revenues	4,025	8,677
Wireless | Consulting services and other
Disaggregation Of Revenue [Line Items]
Revenues	$ 331	$ 434

Segment, Customer Concentrati_3

Segment, Customer Concentration and Geographical Information - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2024 businessUnit location	Mar. 31, 2023 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	54%	37%
Customer Concentration Risk | Revenues | Customer two
Revenue, Major Customer [Line Items]
Concentration percentage	18%	37%
Customer Concentration Risk | Revenues | Customer three
Revenue, Major Customer [Line Items]
Concentration percentage	11%	14%
Customer Concentration Risk | Accounts receivable | Customer one
Revenue, Major Customer [Line Items]
Concentration percentage	51%	37%
Customer Concentration Risk | Accounts receivable | Customer two
Revenue, Major Customer [Line Items]
Concentration percentage	21%	34%
Customer Concentration Risk | Accounts receivable | Customer three
Revenue, Major Customer [Line Items]
Concentration percentage		17%

Segment, Customer Concentrati_4

Segment, Customer Concentration and Geographical Information - Wireless Revenues by Product (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Revenue from External Customer [Line Items]
Total revenues	$ 5,798	$ 10,930
Wireless
Revenue from External Customer [Line Items]
Total revenues	5,798	10,930
Wireless | Family Safety
Revenue from External Customer [Line Items]
Total revenues	4,464	9,089
Wireless | CommSuite
Revenue from External Customer [Line Items]
Total revenues	665	826
Wireless | ViewSpot
Revenue from External Customer [Line Items]
Total revenues	$ 669	$ 1,015

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, 2024	Mar. 31, 2023
Revenue from External Customer [Line Items]
Total revenues	$ 5,798	$ 10,930
Americas | Geographical components
Revenue from External Customer [Line Items]
Total revenues	5,477	10,511
EMEA | Geographical components
Revenue from External Customer [Line Items]
Total revenues	$ 321	$ 419

Leases - Additional Information

Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Lease cost	$ 400	$ 400
Right-of-use asset obtained in exchange for operating lease liability	$ 1,000

Leases - Schedule of Maturity o

Leases - Schedule of Maturity of Operating Lease Liabilities (Detail) $ in Thousands	Mar. 31, 2024 USD ($)
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
2024	$ 1,149
2025	1,399
2026	906
2027	359
2028	61
Total lease payments	3,874
Less imputed interest	374
Present value of lease liabilities	$ 3,500

Leases - Schedule of Additional

Leases - Schedule of Additional Information Relating to Company's Operating Leases (Detail)	Mar. 31, 2024
Leases [Abstract]
Weighted average remaining lease term (years)	2 years 7 months 13 days
Weighted average discount rate	7.30%

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) $ in Millions	Mar. 31, 2024 USD ($)
Income Tax Disclosure [Abstract]
Valuation allowance	$ 58.5