Energous (WATT) 10-Q 17 May 23 2023 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2023	May 10, 2023
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	Q1
Trading Symbol	WATT
Entity Registrant Name	Energous Corp
Entity Central Index Key	0001575793
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Shell Company	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		91,055,881
Title of 12(b) Security	Common Stock, $0.00001 par value
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity File Number	001-36379
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-1318953
Entity Address, Address Line One	3590 North First Street
Entity Address, Address Line Two	Suite 210
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95134
City Area Code	408
Local Phone Number	963-0200
Document Quarterly Report	true
Document Transition Report	false

Condensed Balance Sheets

Condensed Balance Sheets - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 26,339,960	$ 26,287,293
Accounts receivable, net	100,935	143,353
Inventory	71,597	105,821
Prepaid expenses and other current assets	649,479	827,551
Total current assets	27,161,971	27,364,018
Property and equipment, net	383,238	429,035
Operating lease right-of-use assets	1,778,512	1,959,869
Total assets	29,323,721	29,752,922
Current liabilities:
Accounts payable	1,351,018	900,765
Accrued expenses	1,370,046	1,790,414
Accrued severance expense	249,610	416,516
Warrant liability	3,135,000
Operating lease liabilities, current portion	702,780	705,894
Deferred revenue	35,891	29,727
Total current liabilities	6,844,345	3,843,316
Operating lease liabilities, long-term portion	1,090,639	1,264,131
Total liabilities	7,934,984	5,107,447
Commitments and contingencies
Stockholders’ equity:
Preferred Stock, $0.00001 par value, 10,000,000 shares authorized at March 31, 2023 and December 31, 2022; no shares issued or outstanding at March 31, 2023 and December 31, 2022.
Common Stock, $0.00001 par value, 200,000,000 shares authorized at March 31, 2023 and December 31, 2022; 91,032,030 and 78,944,954 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively.	911	789
Additional paid-in capital	390,715,632	387,319,985
Accumulated deficit	(369,327,806)	(362,675,299)
Total stockholders’ equity	21,388,737	24,645,475
Total liabilities and stockholders’ equity	$ 29,323,721	$ 29,752,922

Condensed Balance Sheets (Paren

Condensed Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2023	Dec. 31, 2022
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.00001	$ 0.00001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.00001	$ 0.00001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	91,032,030	78,944,954
Common stock, shares outstanding	91,032,030	78,944,954

Condensed Statements of Operati

Condensed Statements of Operations - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Statement [Abstract]
Revenue	$ 96,676	$ 215,961
Costs and expenses:
Cost of revenue	138,813	203,249
Research and development	3,078,524	3,527,146
Sales and marketing	1,211,938	1,613,590
General and administrative	1,961,460	2,027,520
Total costs and expenses	6,390,735	7,371,505
Loss from operations	(6,294,059)	(7,155,544)
Other (expense) income:
Offering costs related to warrant liability	(591,670)
Interest income	233,222	2,826
Total other (expense) income	(358,448)	2,826
Net loss	$ (6,652,507)	$ (7,152,718)
Basic loss per common share	$ (0.08)	$ (0.09)
Weighted average shares outstanding, basic	81,408,347	76,930,919
Diluted loss per common share	$ (0.08)	$ (0.09)
Weighted average shares outstanding, diluted	81,408,347	76,930,919

Condensed Statement of Changes

Condensed Statement of Changes in Stockholders' Equity - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]
Beginning balance at Dec. 31, 2021	$ 46,984,278	$ 767	$ 383,383,550	$ (336,400,039)
Beginning balance (in shares) at Dec. 31, 2021		76,667,205
Stock-based compensation - options	10,313		10,313
Stock-based compensation - restricted stock units ("RSUs")	745,620		745,620
Stock-based compensation - employee stock purchase plan ("ESPP")	40,973		40,973
Issuance of shares for RSUs		$ 4	(4)
Issuance of shares for RSUs (in shares)		387,823
Proceeds from contributions to the ESPP	104,217		104,217
Net loss	(7,152,718)			(7,152,718)
Ending balance at Mar. 31, 2022	40,732,683	$ 771	384,284,669	(343,552,757)
Ending balance (in shares) at Mar. 31, 2022		77,055,028
Beginning balance at Dec. 31, 2021	46,984,278	$ 767	383,383,550	(336,400,039)
Beginning balance (in shares) at Dec. 31, 2021		76,667,205
Ending balance at Dec. 31, 2022	24,645,475	$ 789	387,319,985	(362,675,299)
Ending balance (in shares) at Dec. 31, 2022		78,944,954
Stock-based compensation - options	21,095		21,095
Stock-based compensation - restricted stock units ("RSUs")	476,242		476,242
Stock-based compensation - employee stock purchase plan ("ESPP")	24,740		24,740
Issuance of shares for RSUs		$ 2	(2)
Issuance of shares for RSUs (in shares)		186,878
Proceeds from contributions to the ESPP	65,134		65,134
Issuance of shares in an at-the-market ("ATM") placement, net of $68,637 in issuance costs	2,674,697	$ 37	2,674,660
Issuance of shares in an at-the-market ("ATM") placement, net of issuance costs (in shares)		3,650,198
Issuance of shares in a sale of common stock, net of $3,166,139 in issuance costs and fair value of a liability warrant	133,861	$ 83	133,778
Issuance of shares in a sale of common stock, net of issuance costs and fair value of liability warrant(in shares)		8,250,000
Net loss	(6,652,507)			(6,652,507)
Ending balance at Mar. 31, 2023	$ 21,388,737	$ 911	$ 390,715,632	$ (369,327,806)
Ending balance (in shares) at Mar. 31, 2023		91,032,030

Condensed Statements of Cash Fl

Condensed Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net loss	$ (6,652,507)	$ (7,152,718)
Adjustments to reconcile net loss to Net cash used in operating activities:
Depreciation and amortization	45,797	70,119
Stock based compensation	522,077	796,906
Changes in operating lease right-of-use assets	181,357	186,736
Inventory net realizable adjustment	111,019
Bad debt expense	(12,500)
Offering costs allocated to warrants	591,670
Changes in operating assets and liabilities:
Accounts receivable	54,918	84,678
Inventory	(76,795)	(68,480)
Prepaid expenses and other current assets	178,072	443,216
Accounts payable	450,253	(271,044)
Accrued expenses	(420,368)	(180,535)
Accrued severance expense	(166,906)	(65,566)
Operating lease liabilities	(176,606)	(203,010)
Deferred revenue	6,164	2,727
Net cash used in operating activities	(5,364,355)	(6,356,971)
Cash flows from investing activities:
Purchases of property and equipment		(44,489)
Net cash used in investing activities		(44,489)
Cash flows from financing activities:
Net proceeds from an ATM offering	2,674,697
Net proceeds from a sale of common stock and warrant issuance	2,677,191
Proceeds from contributions to employee stock purchase plan	65,134	104,217
Net cash provided by financing activities	5,417,022	104,217
Net increase (decrease) in cash and cash equivalents	52,667	(6,297,243)
Cash and cash equivalents – beginning	26,287,293	49,071,414
Cash and cash equivalents – ending	26,339,960	42,774,171
Restricted Stock Units (RSUs) [Member]
Supplemental disclosure of non-cash investing and financing activities:
Common stock issued	$ 2	$ 4

Business Organization, Nature o

Business Organization, Nature of Operations	3 Months Ended
	Mar. 31, 2023
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Business Organization, Nature of Operations	Note 1 - Business Organization, Nature of Operations Energous Corporation (the “Company”) was incorporated in Delaware on October 30, 2012. The Company has developed its WattUp® wireless power technology, consisting of proprietary semiconductor chipsets, software controls, hardware designs and antennas, that enables radio frequency (“RF”) based charging for electronic devices. The WattUp technology has a broad spectrum of capabilities, including near-field wireless charging and at-a-distance wireless charging at various distances. The Company believes its proprietary WattUp technologies are well suited for many applications, including building and home automation, electronic shelf labels, industrial IoT sensors, surface and implanted medical devices, tracking devices, hearables, wearables, consumer electronics and public safety applications. Potential future applications include smartphones, commercial and industrial robotics, as well as automotive solutions and other devices with charging requirements that would otherwise require battery replacement or a wired power connection.

Liquidity and Management Plans

Liquidity and Management Plans	3 Months Ended
	Mar. 31, 2023
Liquidity And Management Plan Disclosure [Abstract]
Liquidity and Management Plans	Note 2 – Liquidity and Management Plans During the three months ended March 31, 2023 and 2022, the Company recorded revenue of $96,676 and $215,961, respectively. During the three months ended March 31, 2023 and 2022, the Company recorded net losses of $6,652,507 and $7,152,718, respectively. Net cash used in operating activities was $5,364,355 and $6,356,971 for the three months ended March 31, 2023 and 2022, respectively. The Company is currently meeting its liquidity requirements through the proceeds of securities offerings that raised net proceeds of $27,043,751 during 2021, $744,787 during 2022 and $5,351,888 during the first quarter of 2023, along with proceeds from contributions to the Company’s employee stock purchase plan (the “ESPP”) and payments received from customers. As of March 31, 2023, the Company had cash and cash equivalents of $26,339,960. The Company expects that cash and cash equivalents as of March 31, 2023, together with anticipated revenues, will be sufficient to fund the Company’s operations through May 2024. Research and development of new technologies is by its nature unpredictable. Although the Company intends to continue its research and development activities, there can be no assurance that its available resources and revenue generated from its business operations will be sufficient to sustain its operations. Accordingly, the Company expects to pursue additional financing, which could include offerings of equity or debt securities, bank financings, commercial agreements with customers or strategic partners, and other alternatives, depending upon market conditions. There is no assurance that such financing will be available on terms that the Company would find acceptable, or at all. The market for products using the Company’s technology is broad and evolving, but remains nascent and unproven, so the Company’s success is dependent upon many factors, including customer acceptance of its existing products, technical feasibility of future products, regulatory approvals, the development of complementary technologies, competition and global market fluctuations.

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 3 – Summary of Significant Accounting Policies Basis of Presentation The accompanying financial statements are presented in U.S. dollars and have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”), and pursuant to the accounting and disclosure rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). These unaudited condensed interim financial statements should be read in conjunction with the audited financial statements and notes thereto for the fiscal year ended December 31, 2022 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 30, 2023. The accounting policies used in preparing these unaudited condensed interim financial statements are consistent with those described in the Company’s December 31, 2022 audited financial statements . Use of Estimates The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities at the date of the financial statements as well as the reported expenses during the reporting periods. Note 3 – Summary of Significant Accounting Policies, continued The Company’s significant estimates and assumptions include the valuation of stock-based compensation instruments, recognition of revenue, inventory valuation, fair value of warrant liabilities and the valuation allowance on deferred tax assets. Some of these judgments can be subjective and complex, and, consequently, actual results may differ from these estimates. Although the Company believes that its estimates and assumptions are reasonable, they are based upon information available at the time the estimates and assumptions were made. Actual results could differ from those estimates. Cash and Cash Equivalents The Company considers all short-term, highly liquid investments with an original maturity at the date of purchase of three months or less to be cash equivalents. The Company maintains cash balances that may be uninsured or in deposit accounts that exceed Federal Deposit Insurance Corporation limits. The Company maintains its cash deposits with major financial institutions. Warrants The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 480, “Distinguishing Liabilities from Equity” (“ASC 480”), and ASC 815, “Derivatives and Hedging” (“ASC 815”). The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and whether the warrants meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s common stock, among other conditions for equity classification. This assessment, which requires the use of professional judgment, is conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the warrants are outstanding. For issued or modified warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in capital at the time of issuance. For issued or modified warrants that do not meet all the criteria for equity classification, the warrants are required to be recorded as a liability at their initial fair value on the date of issuance, and each balance sheet date thereafter. Changes in the estimated fair value of the warrants are recognized as a non-cash gain or loss on the statements of operations. The fair value of the warrants is estimated using an appropriate valuation model. Such warrant classification is also subject to re-evaluation at each reporting period. Offering costs associated with warrants classified as liabilities are expensed as incurred and are presented as offering cost related to warrant liability in the statement of operations. Offering costs associated with the sale of warrants classified as equity are charged against proceeds. Fair Value The Company follows ASC 820, Fair Value Measurements (“ASC 820”), which establishes a common definition of fair value to be applied when US GAAP requires the use of fair value, establishes a framework for measuring fair value, and requires certain disclosure about such fair value measurements. ASC 820 establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about what market participants would use in pricing the asset or liability based on the best information available in the circumstances. The hierarchy is broken down into three levels based on the reliability of inputs as follows: • Level 1: Observable inputs such as quoted prices in active markets for identical assets or liabilities to which the Company has access at a measurement date. • Level 2: Observable inputs other than Level 1 quoted prices that are observable for the asset or liability, either directly or indirectly; these include quoted prices for similar assets or liabilities in an active market, quoted prices for identical assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3: Unobservable inputs for which little or no market data exists and for which the Company must develop its own assumptions regarding the assumptions that market participants would use in pricing the asset or liability, including assumptions regarding risk. Note 3 – Summary of Significant Accounting Policies, continued Because of the uncertainties inherent in the valuation of assets or liabilities for which there are no observable inputs, those estimated fair values may differ significantly from the values that may have been used had a ready market for the assets or liabilities existed. The carrying amounts of the Company’s financial assets and liabilities, such as cash, cash equivalents, prepaid expenses, other current assets, and accounts payable & accrued expenses, are an approximate of their fair values because of the short maturity of these instruments. The Company’s derivative liabilities recognized at fair value on a recurring basis are a level 3 measurement (see Note 8 – Fair Value Measurement). Revenue Recognition The Company follows Accounting Standards Codification (“ASC”) 606, "Revenue from Contracts with Customers" (“Topic 606”). In accordance with Topic 606, the Company recognizes revenue using the following five-step approach: 1. Identify the contract with a customer. 2. Identify the performance obligations in the contract. 3. Determine the transaction price of the contract. 4. Allocate the transaction price to the performance obligations in the contract. 5. Recognize revenue when or as the performance obligations are satisfied. The Company’s revenue consists of its single segment of wireless charging system solutions. The wireless charging system revenue consists of revenue from product development projects and production-level systems. During the three months ended March 31, 2023 and 2022, the Company recognized $96,676 and $215,961, respectively, in revenue. The Company records revenue associated with product development projects that it enters into with certain customers. In general, these product development projects are complex, and the Company does not have certainty about its ability to achieve the project milestones. The achievement of a milestone is dependent on the Company’s performance obligation and requires acceptance by the customer. The Company recognizes this revenue at the point in time at which the performance obligation is met. The payment associated with achieving the performance obligation is generally commensurate with the Company’s effort or the value of the deliverable and is nonrefundable. The Company records the expenses related to these product development projects in research and development expense, in the periods such expenses were incurred. Inventory The Company follows ASC 330, Inventory Research and Development Research and development expenses are charged to operations as incurred. For internally developed patents, all patent costs are expensed as incurred as research and development expense. Patent application costs, which are generally legal costs, are expensed as research and development costs until such time as the future economic benefits of such patents become more certain. The Company incurred research and development costs of $3,078,524 and $3,527,146 for the three months ended March 31, 2023 and 2022, respectively. Stock-Based Compensation The Company accounts for equity instruments issued to employees, board members and contractors in accordance with accounting guidance that requires awards to be recorded at their fair value on the date of grant and amortized over the vesting period of the award. The Company amortizes compensation costs on a straight-line basis over the requisite service period of the award, which is typically the vesting term of the equity instrument issued. Note 3 – Summary of Significant Accounting Policies, continued Under the ESPP, employees may purchase a limited number of shares of the Company’s common stock at a 15% discount from the lower of the closing market prices measured on the first and last days of each half-year period. The Company recognizes stock-based compensation expense for the fair value of the purchase options, as measured on the grant date. Income Taxes Tax benefits are recognized only for tax positions that are more likely than not to be sustained upon examination by tax authorities. The amount recognized is measured as the largest amount of benefit that is greater than 50 percent likely to be realized upon settlement. A liability for “unrecognized tax benefits” is recorded for any tax benefits claimed in the Company’s tax returns that do not meet these recognition and measurement standards. As of March 31, 2023, no liability for unrecognized tax benefits was required to be reported. The guidance from ASC 740, Income Taxes, Net Loss Per Common Share Basic net loss per share is computed by dividing net loss available to common stockholders by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share is computed using the weighted average number of common shares and, if dilutive, potential common shares outstanding during the period. Potential common shares consist of the incremental common shares issuable upon the exercise of stock options and warrants (using the treasury stock method), the vesting of restricted stock units (“RSUs”) and performance stock units (“PSUs”) and the enrollment of employees in the ESPP. The computation of diluted loss per share excludes potentially dilutive securities of 12,890,622 and 5,682,499, as outlined in the table below, for the three months ended March 31, 2023 and 2022, respectively, because their inclusion would be anti-dilutive. For the Three Months Ended March 31, 2023 2022 Warrants issued to investors 9,916,666 3,284,789 Options to purchase common stock 300,000 825,006 RSUs 2,673,956 1,572,704 Total potentially dilutive securities 12,890,622 5,682,499 The table above includes 1,666,666 warrants expiring on March 1, 2024, which have an exercise price of $10.00 and 8,250,000 warrants expiring on March 28, 2029, which have an exercise price of $0.40. Leases The Company determines if an arrangement is a lease at the inception of the arrangement. The Company applies the short-term lease recognition exemption and recognizes lease payments in profit or loss at lease commencement for facility or equipment leases that have a lease term of 12 months or less and do not include a purchase option whose exercise is reasonably certain. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities. ROU assets represent the right to use an underlying asset for the lease term, and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are measured and recorded at the later of the adoption date, January 1, 2019, or the service commencement date based on the present value of lease payments over the lease term. The Company uses the implicit interest rate when readily determinable; however, most leases do not establish an implicit rate, so the Company uses an estimate of the incremental borrowing rate based on the information available at the time of measurement. Lease expense for lease payments is recognized on a straight-line basis over the lease term. See Note 4 – Commitments and Contingencies, Operating Leases Management’s Evaluation of Subsequent Events The Company evaluates events that have occurred after the balance sheet date of March 31, 2023, through the date which the financial statements are available to be issued.

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2023
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 4 – Commitments and Contingencies Operating Leases San Jose Lease On May 20, 2022, the Company signed a lease amendment to the existing lease for its office space at its corporate headquarters in San Jose, California, extending the term of the lease for an additional three years. Upon signing the lease amendment, the Company recorded a new ROU lease asset of $2,071,336 and operating lease liability of $2,071,336, using a present value discount rate of 3.0%. Upon expiration of the original lease on September 30, 2022, the new monthly lease payment starting October 1, 2022 is $58,903, subject to annual escalations up to a maximum monthly lease payment of $62,490. Costa Mesa Lease On September 22, 2021, the Company signed a new lease for office space for its engineers based in Costa Mesa, California. Per the lease, the lease commencement date is October 1, 2021 and the expiration date is September 30, 2023. The Company did not have control of the new office space until October 2021, at which time the Company recorded a new ROU lease asset of $104,563 and operating lease liability of $104,563. The new Costa Mesa lease has an initial monthly lease payment of $4,369 starting October 1, 2021 and is subject to an annual escalation up to a maximum monthly lease payment of $4,522. Operating Lease Commitments The Company follows ASC 842, Leases, A reconciliation of undiscounted cash flows to lease liabilities recognized as of March 31, 2023 is as follows: Amount (unaudited) 2023 562,555 2024 733,497 2025 562,408 Total future lease payments 1,858,460 Present value discount (2.9% weighted average) (65,041 ) Total operating lease liabilities $ 1,793,419 Hosted Design Software Agreement In June 2021, the Company entered into an electronic design automation software in a hosted environment license agreement with a term of three-years $233,000 through the second quarter of 2024. Litigations, Claims, and Assessments The Company is from time to time involved in various disputes, claims, liens and litigation matters arising in the normal course of business. While the outcome of these disputes, claims, liens and litigation matters cannot be predicted with certainty, after consulting with legal counsel, management does not believe that the outcome of these matters will have a material adverse effect on the Company's combined financial position, results of operations or cash flows. MBO Bonus Plan On March 15, 2018, the Company’s Board of Directors (“Board”), on the recommendation of the Board’s Compensation Committee (“Compensation Committee”), approved the Energous Corporation MBO Bonus Plan (“Bonus Plan”) for executive officers of the Company. To be eligible to receive a bonus under the Bonus Plan, an executive officer must be continuously employed throughout the applicable performance period, and in good standing, and achieve the performance objectives selected by the Compensation Committee. Note 4 – Commitments and Contingencies, continued Under the Bonus Plan, the Compensation Committee is responsible for selecting the amounts of potential bonuses for executive officers, the performance metrics used to determine whether any such bonuses will be paid and determining whether those performance metrics have been achieved. During the three months ended March 31, 2023 and 2022, the Company recorded $62,001 and $125,468 in expense, respectively, under the Bonus Plan. As of December 31, 2022, $688,364 was accrued and unpaid under the Bonus Plan, of which $560,533 was paid during the three months ended March 31, 2023. The remaining $109,452 from 2022 is expected to be paid during the second quarter of 2023. As of March 31, 2023, the Company had accrued $171,453 under the Bonus Plan, including the $109,452 remaining accrual from 2022 and the additional $62,001 accrued during the first quarter of 2023, which is expected to be paid between the second quarter of 2023 and the first quarter of 2024. Severance and Change in Control Agreement On March 15, 2018, the Compensation Committee approved a form of Severance and Change in Control Agreement (“Severance Under the Severance Agreement, if an Executive is terminated in a qualifying change in control termination, the Company agrees to pay the Executive six to 12 months of that Executive’s monthly base salary. If an Executive elects continued coverage under the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”) the Company will pay the full amount of the Executive’s premiums under the Company’s health, dental and vision plans, including coverage for the Executive’s eligible dependents, for the six to 12 month period following the Executive’s termination. Executive Employee Agreement – Cesar Johnston On December 9, 2021, the Company announced that Cesar Johnston had been appointed as the Company’s Chief Executive Officer. In connection with Mr. Johnston’s appointment as Chief Executive Officer, the Company and Mr. Johnston executed an offer letter dated as of December 6, 2021. Under the terms of his offer letter, Mr. Johnston will receive an annual base salary of $400,000 per year. Beginning in year 2022, he is eligible to receive a discretionary annual bonus of up to 100% of his base salary, at the recommendation of the Company’s Compensation Committee, with the approval of the Company’s Board. In add on a a nducemen accep h appo n men a Ch e Execu v O ce M ohn o received ub ec con nue emp oymen a pec a one m gn o bonu h amoun o $120 000 payab equa n a men o $60 00 eac o h pay o da 202 an h pay o da a e Decembe 6 2022 b g an o 150 00 acqu ha e o h Company commo ock on h o wh c vested o Decembe 6 202 an h ema n n w h d o wh c ve e gh equa n a men o 12 50 eac o eac qua e ann ve a he ea e an c g an o a op o pu cha ha e o h Company commo oc a a exe c p c equa h a ma ke va u o h Company commo oc o h g an da e ha o wh c ha ve o Decembe 31 2023 qua e o wh c ha ve o Decembe 31 202 an h ema nde o wh c ha ve o Decembe 31 2025 Also pursuant to the terms of his offer letter, Mr. at various amounts to be agreed upon each year by the Board each of Note 4 – Commitments and Contingencies, continued In connec o w M ohn on appo n men a Ch e Execu v O ce h Compan an M ohn o add ona en e e n a amende e a e eve anc an chang con o ag eemen da e a o Decembe 6 2021 I h even o termination ha no a one m um u paymen b h Compan a amoun equa 1 mon h o h mon h ba a a p u a amoun equa 100 o h a ge bonu p u ag ee b h Compen a o Comm ee d c e ona bonu o h yea wh c h termination occu b an ou and n unve e equ awa d he b M ohn o ha wou ve h nex 1 mon h o con nu n emp oymen o he ha an equ awa d ha ve upo a ac o o pe o manc c e a w acce e a an becom ve e an c M ohn o me e ec con nue cove ag unde COBRA h Compan o ucce o w pa h u amoun o M ohn on COBR p em um o h beha o 1 mon h Mr. Johnston’s agreement a Mr. Johnston is also eligible to receive all customary and usual benefits generally available to senior executives of the Company. Executive Transition Agreement – Stephen Rizzone On April 3, 2015, the Company entered into an Amended and Restated Executive Employment Agreement with Stephen R. Rizzone, the Company’s former President and Chief Executive Officer (“Employment Agreement”). The Employment Agreement effective as of January 1, 2015, had an initial term of four years and automatically renewed each year after the initial term. The Employment Agreement provided for an annual base salary of $365,000, and Mr. Rizzone was eligible to receive quarterly cash bonuses from the MBO Bonus Plan with a total target amount equal to 100% of his base salary based upon achievement of performance-based objectives established by the Board. On July 9, 2021, the Company announced that Stephen R. Rizzone had retired from his position as the Company’s President and Chief Executive Officer and as a member of the Board. In connection with Mr. Rizzone’s retirement, the Company and Mr. Rizzone entered into an Executive Transition Agreement (the “Separation Agreement”), providing for continued employment through August 31, 2021. Upon his termination of employment, the Separation Agreement provides severance payments and benefits to Mr. Rizzone consistent with the terms of his existing employment agreement with the Company, including without limitation: compensation-based payments of $1,460,000 in the aggregate, payable under a certain payment scheme as set forth therein, an additional lump sum cash payment of $2,000,000, a pro-rated bonus payment for the two months of employment during the current quarterly bonus period payable at the same time bonus payments are made to other executives of the Company, settlement of deferred vested RSUs and an extension of the exercise periods of all stock options held by Mr. Rizzone until the one year anniversary of his termination date, and additional benefits related to Mr. Rizzone’s medical insurance. In addition, the Company agreed to pay-off all amounts owed under a lease agreement relating to a company car and that Mr. Rizzone would receive the title to the vehicle. All compensation under the Separation Agreement has been or will be subject to applicable withholding. As of March 31, 2023, the Company had unpaid accrued severance expense of $249,610 pertaining to Mr. Rizzone’s Separation Agreement which is expected to be paid through August 31, 2023. Executive Transition Agreement – Neeraj Sahejpal On April 29, 2022, the Company announced the departure of Neeraj Sahejpal, former Senior Vice President of Marketing and Business Development, effective April 30, 2022. Pursuant to the terms of Mr. Sahejpal’s severance and change of control agreement with the Company, Mr. Sahejpal received payments and benefits including compensation equal to twelve months of Mr. Sahejpal’s then-current salary of $261,250, twelve months of maximum potential bonus of $261,250, and twelve months of COBRA reimbursements. In addition, all RSUs held by Mr. Sahejpal that were due to vest in the twelve months after his departure, totaling RSUs covering 85,943 shares, were accelerated. Note 4 – Commitments and Contingencies, continued As of March 31, 2023, the Company had no unpaid accrued severance expense pertaining to Mr. Sahejpal’s agreement. Strategic Alliance Agreement In November 2016, the Company and Dialog Semiconductor plc (“Dialog”), a related party (see Note 7—Related Party Transactions), entered into a Strategic Alliance Agreement (“Alliance Agreement”) for the manufacture, distribution and commercialization of products incorporating the Company’s wire-free charging technology (“Licensed Products”). Pursuant to the terms of the Alliance Agreement, the Company agreed to engage Dialog as the exclusive supplier of the Licensed Products for specified fields of use, subject to certain exceptions (the “Company Exclusivity Requirement”). Dialog agreed to not distribute, sell or work with any third party to develop any competing products without the Company’s approval. In addition, both parties agreed on a revenue sharing arrangement and will collaborate on the commercialization of Licensed Products based on a mutually-agreed upon plan. Each party will retain all of its intellectual property. The Alliance Agreement has an initial term of seven years, with automatic renewal annually thereafter unless terminated by either party upon 180 days’ prior written notice. The Company may terminate the Alliance Agreement at any time after the third anniversary of the Alliance Agreement upon 180 days’ prior written notice to Dialog, or if Dialog breaches certain exclusivity obligations. Dialog may terminate the Alliance Agreement if sales of Licensed Products do not meet specified targets. The Company Exclusivity Requirement had a termination date of the earlier of January 1, 2021 or the occurrence of certain events relating to the Company’s pre-existing exclusivity obligations. The Company Exclusivity Requirement renewed automatically on an annual basis unless the Company and Dialog agree to terminate the requirement. On September 20, 2021, the Company was notified by Dialog, recently acquired by Renesas Electronics Corporation, that it was terminating the Alliance Agreement between the Company and Dialog. There is a wind down period included in the Alliance Agreement which will conclude in September 2024. During the wind down period, the Alliance Agreement’s terms will continue to apply to the Company’s products that are covered by certain existing customer relationships, except that the parties’ respective exclusivity rights have terminated (see Note 9 – Related Party Transactions for expenses incurred by the Company from Renesas Electronics Corporation).

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2023
Equity [Abstract]
Stockholders' Equity	Note 5 – Stockholders’ Equity Authorized Capital The holders of the Company’s common stock are entitled to one vote per share. Holders of common stock are entitled to receive ratably such dividends, if any, as may be declared by the Board out of legally available funds. Upon the liquidation, dissolution or winding up of the Company, holders of common stock are entitled to share ratably in all assets of the Company that are legally available for distribution. Financing On September 15, 2020, the Company filed a shelf registration statement on Form S-3 with the SEC, which became effective on September 24, 2020, and contains two prospectuses: a base prospectus, which covers the offering, issuance and sale by the Company of up to $75,000,000 of its common stock, preferred stock, debt securities, warrants to purchase our common stock, preferred stock or debt securities, subscription rights to purchase its common stock, preferred stock or debt securities and/or units consisting of some or all of these securities; and an at-the-market sales agreement prospectus supplement covering the offering, issuance and sale by the Company of up to a maximum aggregate offering price of $40,000,000 of its common stock that may be issued and sold under the At Market Issuance Sales Agreement, as amended, between the Company, B. Riley Securities, Inc., Roth Capital Partners LLC and Ladenburg Thalmann & Co. Inc. (the “ATM Program”). The $40,000,000 of common stock to be offered, issued and sold under the ATM Program is included in the $75,000,000 of securities that may be offered, issued and sold by the Company under the base prospectus. Pursuant to this shelf registration statement, the Company sold shares which raised net proceeds of $38,832,711 (net of $1,167,289 in issuance costs) during the third and fourth quarters of 2020 under the ATM Program. Note 5 – Stockholders’ Equity, continued On October 4, 2021, the Company filed a prospectus supplement covering the offering, issuance and sale of up to an additional $35,000,000 of shares of the Company’s common stock pursuant to the ATM Program. The Company raised net proceeds of $27,043,751 (net of $868,122 in issuance costs), during 2021 under the ATM Program. During 2022, the Company raised an additional $744,787 (net of $73,403 in issuance costs) under the ATM Program. During the first quarter of 2023, the Company raised $2,674,697 (net of $68,637 in issuance costs) under the ATM Program. As of March 31, 2023, the Company has $3,526,605 remaining on this shelf registration statement. On November 15, 2021, the Company filed a shelf registration statement on Form S-3 with the SEC, which became effective on December 16, 2021. This shelf registration statement allows the Company to sell, from time to time, any combination of debt or equity securities described in the registration statement up to aggregate proceeds of $100,000,000. Pursuant to this registration statement, on March 28, 2023, the Company completed an underwritten offering pursuant to which it issued and sold an aggregate of (i) 8,250,000 shares of its common stock (the “Shares”) and (ii) warrants to purchase up to 8,250,000 shares of its common stock (the “2023 Warrants”), for net proceeds of $2,677,191, after deducting underwriting discounts, commission and expenses payable by the Company. The 2023 Warrants were immediately exercisable upon issuance and have a term of six years and an exercise price of $0.40. The Company allocated the proceeds received first to the 2023 Warrants based on the fair value of the 2023 Warrants as determined at initial measurement, with the remaining proceeds allocated to the Shares (see Note 7 – Warrant Liability and Note 8 – Fair Value Measurements). Common Stock Outstanding Our outstanding shares of common stock typically include shares that are deemed delivered under US GAAP. Shares that are deemed delivered currently include shares that have vested, but have not yet been delivered, under tax-deferred equity awards, as well as shares purchased under the ESPP where actual transfer of shares normally occurs a few days after the completion of the purchase periods. There are no voting rights for shares that are deemed delivered under US GAAP until the actual delivery of shares takes place. There are currently 200,000,000 shares of common stock authorized for issuance.

Stock Based Compensation

Stock Based Compensation	3 Months Ended
	Mar. 31, 2023
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stock Based Compensation	Note 6 – Stock-Based Compensation Equity Incentive Plans 2013 Equity Incentive Plan Effective on June 16, 2021, the Company’s stockholders approved the amendment and restatement of the 2013 Equity Incentive Plan to increase the number of shares reserved for issuance thereunder by 1,500,000 shares, bringing to 8,785,967 the total number of shares approved for issuance under that plan. As of March 31, 2023, 1,248,896 shares of common stock remain eligible to be issued through equity-based instruments under the 2013 Equity Incentive Plan. 2014 Non-Employee Equity Compensation Plan Effective on May 26, 2020, the Company’s stockholders approved the amendment and restatement of the 2014 Non-Employee Equity Compensation Plan to increase the number of shares reserved for issuance through equity-based instruments thereunder by 800,000 shares, bringing to 1,650,000 the total number of shares approved for issuance under that plan. As of March 31, 2023, 546,238 shares of common stock remain eligible to be issued through equity-based instruments under the 2014 Non-Employee Equity Compensation Plan. 2015 Performance Share Unit Plan Effective on June 16, 2021, the Company’s stockholders approved the amendment and restatement of the 2015 Performance Share Unit Plan to increase the number of shares reserved for issuance through equity-based instruments thereunder by 1,700,000 shares, bringing to 5,110,104 the total number of shares approved for issuance under that plan. Note 6 – Stock-Based Compensation, continued As of March 31, 2023, 2,275,438 shares of common stock remain eligible to be issued through equity-based instruments under the 2015 Performance Share Unit Plan. 2017 Equity Inducement Plan On December 28, 2017, the Board approved the 2017 Equity Inducement Plan. Under the 2017 Equity Inducement Plan, the Board reserved 600,000 shares for the grant of RSUs. These grants will be administered by the Board or a committee of the Board. These awards will be granted to individuals who (a) are being hired as an employee by the Company or any subsidiary and such award is a material inducement to such person being hired; (b) are being rehired as an employee following a bona fide period of interruption of employment with the Company or any subsidiary; or (c) will become an employee of the Company or any subsidiary in connection with a merger or acquisition. On July 20, 2022, the Board increased the number of shares of common stock reserved and available for issuance under the 2017 Equity Inducement Plan by 2,000,000 shares. As of March 31, 2023, 1,041,170 shares of common stock remain available to be issued through equity-based instruments under the 2017 Equity Inducement Plan. Employee Stock Purchase Plan In April 2015, the Company’s Board approved the ESPP, under which 600,000 shares of common stock have been reserved for purchase by the Company’s employees, subject to the approval by the Company’s stockholders. On May 21, 2015, the Company’s stockholders approved the ESPP. Effective on June 16, 2021, the Company’s stockholders approved the amendment and restatement of the ESPP to increase the number of shares reserved for issuance through equity-based instruments thereunder by 700,000 shares, bring to 1,550,000 the total number of shares approved for issuance under that plan. Under the ESPP, employees may designate an amount not less than 1% but not more than 10% of their annual compensation for the purchase of Company shares. No more than 7,500 shares may be purchased by an employee under the ESPP during an offering period. An offering period shall be six months in duration commencing on or about January 1 and July 1 of each year. The exercise price of the option will be the lesser of 85% of the fair market of the common stock on the first business day of the offering period and 85% of the fair market value of the common stock on the applicable exercise date. As of March 31, 2023, 201,619 shares of common stock remain eligible to be issued under the ESPP. Employees contributed $65,134 through payroll withholdings to the ESPP as of March 31, 2023 for the current offering period which will end on June 30, 2023 with shares deemed delivered on that date. Stock Option Activity In February 2022, the Board granted our Chief Executive Officer 300,000 stock options under the 2013 Equity Incentive Plan at an exercise price of $1.27 per share with half of the options vesting on the second anniversary of the vesting start date and a quarter of the options vesting on each of the two following anniversaries. The Company estimated the fair value of stock options granted during the second quarter of 2022 using the Black-Scholes option pricing model. No stock options were granted during the three months ended March 31, 2023. The fair values of stock options granted during the second quarter of 2022 were estimated using the following assumptions: Three Months Ended June 30, 2022 Stock price $ 1.27 Dividend yield 0 % Expected volatility 108 % Risk-free interest rate 1.92 % Expected life 5.6 years Note 6 – Stock-Based Compensation, continued The following is a summary of the Company’s stock option activity during the three months ended March 31, 2023: Number of Options Weighted Average Exercise Price Weighted Average Remaining Life In Years Intrinsic Value Outstanding at January 1, 2023 300,262 $ 1.27 8.9 $ – Granted – – – – Exercised – – – – Forfeited (262 ) 2.49 – – Outstanding at March 31, 2023 300,000 $ 1.27 8.7 $ – Exercisable at January 1, 2023 262 $ 2.49 0.3 $ – Vested – – – – Exercised – – – – Forfeited (262 ) 2.49 – – Exercisable at March 31, 2023 – $ – – $ – As of March 31, 2023, the unamortized fair value of options was $212,594. The unamortized amount will be expensed over a weighted average period of 2.4 years. PSUs PSUs are grants that vest upon the achievement of certain performance goals. The goals are commonly related to the Company’s revenue and achievement of sales and marketing goals. On July 20, 2022, the Board granted the Company’s Chief Executive Officer, Cesar Johnston, up to 287,000 PSUs under the Company’s 2015 Performance Share Unit Plan pursuant to the terms of Mr. Johnston’s offer letter with the Company (See Note 4 – Commitments and Contingencies). The up to 287,000 PSUs that have been approved shall vest as follows: (a) up to 187,000 PSU shares shall vest on December 31, 2022, subject to Mr. Johnston’s continued service as Chief Executive Officer and the achievement, to be determined in the Compensation Committee’s sole discretion, by Mr. Johnston of certain performance metrics previously determined by the Compensation Committee and approved by the Board, and (b) up to an additional 50,000 PSU shares shall vest on each of December 31, 2023 and December 31, 2024, subject to Mr. Johnston’s continued service as Chief Executive Officer and the achievement, to be determined in the Compensation Committee’s sole discretion, by Mr. Johnston of certain performance metrics to be recommended by the Compensation Committee and approved by the Board at a subsequent date. On December 31, 2022, 135,575 PSUs were achieved, vested and deemed delivered on that date. As of March 31, 2023, the performance criteria for an additional up to 100,000 PSUs had not been approved by the Board. There was no PSU activity for the three months ended March 31, 2023 and 2022. RSUs During the three months ended March 31, 2023, the Compensation Committee granted various employees RSUs covering 48,750 shares of common stock under the 2013 Equity Incentive Plan. The awards vest over four years. During the three months ended March 31, 2023, the Compensation Committee granted various non-employees RSUs covering 124,452 shares of common stock under the 2014 Non-Employee Equity Compensation Plan. The awards vest over terms ranging from one to four years. During the three months ended March 31, 2023, the Compensation Committee granted various employees RSUs covering 535,000 shares of common stock under the 2017 Equity Inducement Plan. The awards vest over four years. Note 6 – Stock-Based Compensation, continued As of t h un am or ti ze fair v a l u o t h R a $ T h un am or ti ze am oun il b e xp e n e ov e weighted average p e r i o o 2.0 y ea r Total Weighted Average Grant Date Fair Value Outstanding at January 1, 2023 2,165,132 $ 1.63 RSUs granted 708,202 0.69 RSUs forfeited (12,500 ) 1.27 RSUs vested (186,878 ) 2.08 Outstanding at March 31, 2023 2,673,956 $ 1.35 Employee Stock Purchase Plan (“ESPP”) The current offering period under the ESPP started on January 1, 2023 and will conclude on June 30, 2023. During the year ended December 31, 2022, there were two offering periods. The first offering period began on January 1, 2022 and concluded on June 30, 2022. The second offering period began on July 1, 2022 and concluded on December 31, 2022. The weighted-average grant-date fair value of the purchase option for each designated share purchased under the ESPP was approximately $0.27 and $0.40 for the three months ended March 31, 2023 and 2022, respectively, which represents the fair value of the option, consisting of three main components: (i) the value of the discount on the enrollment date, (ii) the proportionate value of the call option for 85% of the stock and (iii) the proportionate value of the put option for 15% of the stock. The Company recognized compensation expense for the ESPP of $24,740 and $40,973 for the three months ended March 31, 2023 and 2022, respectively. The Company estimated the fair value of ESPP purchase options granted during the three months ended March 31, 2023 and 2022 using the Black-Scholes option pricing model. The fair values of ESPP purchase options granted were estimated using the following assumptions: Three Months Ended March 31, 2023 2022 Stock price $ 0.836 $ 1.25 Dividend yield 0 % 0 % Expected volatility 59 % 61 % Risk-free interest rate 4.42 % 0.19 % Expected life 6 months 6 months Stock-Based Compensation Expense The following tables summarize total stock-based compensation costs recognized for the three months ended March 31, 2023 and 2022: Three Months Ended March 31, 2023 2022 Stock options $ 21,095 $ 10,313 RSUs 476,242 745,620 ESPP 24,740 40,973 Total $ 522,077 $ 796,906 Note 6 – Stock-Based Compensation, continued The total amount of stock-based compensation was reflected within the statements of operations as: Three Months Ended March 31, 2023 2022 Research and development $ 208,731 $ 353,043 Sales and marketing 104,903 180,377 General and administrative 208,443 263,486 Total $ 522,077 $ 796,906

Warrant Liability

Warrant Liability	3 Months Ended
	Mar. 31, 2023
Warrants And Rights Note Disclosure [Abstract]
Warrant Liability	Note 7 – Warrant Liability 2023 Warrants In March 2023, the Company issued 8,250,000 warrants to purchase up to 8,250,000 shares of its common stock. The 2023 Warrants have a six-year If the Company issues additional shares of common stock or equity-linked securities for a consideration per share less than the 2023 Warrants Exercise Price, then such Exercise Price will be reduced to a new lower price pursuant to the terms of the 2023 Warrants of any outstanding derivative securities is modified by the Company such that such security’s modified exercise price is below the Exercise Price of the 2023 Warrants, the Exercise Price will adjust downward pursuant to the terms of the 2023 Warrant. This provision would not apply for stock or stock equivalents which fall under shares that qualify for exempt issuance, such as if the Company adjusted the option exercise price for an option granted to an employee, officer, or director. The Company accounted for the 2023 Warrants in accordance with the derivative guidance contained in ASC 815-40, as the warrants did not meet the criteria for equity treatment. The Company believes that the adjustments to the Exercise Price is based on a variable that is not an input to the fair value of a “fixed-for-fixed” option as defined under ASC 815-40, and thus the 2023 Warrants are not eligible for an exception from derivative accounting. As such, the 2023 Warrants were initially measured at fair value and recorded as a liability in the amount of $3,135,000. As of March 31, 2023, all 2023 Warrants were outstanding.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 8 – Fair Value Measurements The following tables present information about the Company’s assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2023 and December 31, 2022 and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value: Balance as of March 31, 2023 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents $ 26,339,960 $ – $ – $ 26,339,960 Liabilities: Warrant liability $ – $ – $ 3,135,000 $ 3,135,000 Balance as of December 31, 2022 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents $ 26,287,293 $ – $ – $ 26,287,293 Liabilities: Warrant liability $ – $ – $ – $ – There were no transfers among Level 1, Level 2, or Level 3 categories during the periods presented. 2023 Warrants The Company utilizes a Monte Carlo simulation model for the 2023 Warrants at each reporting period, with changes in fair value recognized in the statements of operations. The estimated fair value of the 2023 Warrant liability is determined using Level 3 inputs. Inherent in a Monte Carlo simulation model are assumptions related to expected share-price volatility, expected life, risk-free interest rate, and dividend yield. The key inputs into the Monte Carlo simulation model for the 2023 Warrants are as follows: At March 31, 2023 Share price $ 0.54 Exercise price $ 0.40 Term (in years) 6 Volatility 65 % Risk-free rate 3.6 % Dividend yield 0 % The change in the fair value of the 2023 Warrant liability was determined to be zero during the three months ended March 31, 2023 (see Note 7 – Warrant Liability).

Related Party Transactions

Related Party Transactions	3 Months Ended
	Mar. 31, 2023
Related Party Transactions [Abstract]
Related Party Transactions	Note 9 – Related Party Transactions In November 2016, the Company and Dialog entered into the Alliance Agreement for the manufacture, distribution and commercialization of products incorporating the Company’s wire-free charging technology (See Note 4 – Commitments and Contingencies, Strategic Alliance Agreement On September 20, 2021, the Company was notified by Dialog that it was terminating the Alliance Agreement between the Company and Dialog.

Customer Concentrations

Customer Concentrations	3 Months Ended
	Mar. 31, 2023
Risks And Uncertainties [Abstract]
Customer Concentrations	Note 10 – Customer Concentrations Two customers accounted for approximately 84% of the Company’s revenue for the three months ended March 31, 2023, and two customers accounted for approximately 53% of the Company’s revenue for the three months ended March 31, 2022. Two customers accounted for approximately 80% of the Company’s accounts receivable balance as of March 31, 2023. One customer accounted for approximately 87% of the Company’s accounts receivable balance as of December 31, 2022.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying financial statements are presented in U.S. dollars and have been prepared in accordance with accounting principles generally accepted in the United States of America (“US GAAP”), and pursuant to the accounting and disclosure rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). These unaudited condensed interim financial statements should be read in conjunction with the audited financial statements and notes thereto for the fiscal year ended December 31, 2022 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 30, 2023. The accounting policies used in preparing these unaudited condensed interim financial statements are consistent with those described in the Company’s December 31, 2022 audited financial statements .
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with US GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent liabilities at the date of the financial statements as well as the reported expenses during the reporting periods. The Company’s significant estimates and assumptions include the valuation of stock-based compensation instruments, recognition of revenue, inventory valuation, fair value of warrant liabilities and the valuation allowance on deferred tax assets. Some of these judgments can be subjective and complex, and, consequently, actual results may differ from these estimates. Although the Company believes that its estimates and assumptions are reasonable, they are based upon information available at the time the estimates and assumptions were made. Actual results could differ from those estimates.
Cash and Cash Equivalents	Cash and Cash Equivalents The Company considers all short-term, highly liquid investments with an original maturity at the date of purchase of three months or less to be cash equivalents. The Company maintains cash balances that may be uninsured or in deposit accounts that exceed Federal Deposit Insurance Corporation limits. The Company maintains its cash deposits with major financial institutions.
Warrants	Warrants The Company accounts for warrants as either equity-classified or liability-classified instruments based on an assessment of the warrant’s specific terms and applicable authoritative guidance in Financial Accounting Standards Board (“FASB”) Accounting Standards Codification (“ASC”) 480, “Distinguishing Liabilities from Equity” (“ASC 480”), and ASC 815, “Derivatives and Hedging” (“ASC 815”). The assessment considers whether the warrants are freestanding financial instruments pursuant to ASC 480, meet the definition of a liability pursuant to ASC 480, and whether the warrants meet all of the requirements for equity classification under ASC 815, including whether the warrants are indexed to the Company’s common stock, among other conditions for equity classification. This assessment, which requires the use of professional judgment, is conducted at the time of warrant issuance and as of each subsequent quarterly period end date while the warrants are outstanding. For issued or modified warrants that meet all of the criteria for equity classification, the warrants are required to be recorded as a component of additional paid-in capital at the time of issuance. For issued or modified warrants that do not meet all the criteria for equity classification, the warrants are required to be recorded as a liability at their initial fair value on the date of issuance, and each balance sheet date thereafter. Changes in the estimated fair value of the warrants are recognized as a non-cash gain or loss on the statements of operations. The fair value of the warrants is estimated using an appropriate valuation model. Such warrant classification is also subject to re-evaluation at each reporting period. Offering costs associated with warrants classified as liabilities are expensed as incurred and are presented as offering cost related to warrant liability in the statement of operations. Offering costs associated with the sale of warrants classified as equity are charged against proceeds.
Fair Value	Fair Value The Company follows ASC 820, Fair Value Measurements (“ASC 820”), which establishes a common definition of fair value to be applied when US GAAP requires the use of fair value, establishes a framework for measuring fair value, and requires certain disclosure about such fair value measurements. ASC 820 establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that observable inputs be used when available. Observable inputs are inputs that market participants would use in pricing the asset or liability based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about what market participants would use in pricing the asset or liability based on the best information available in the circumstances. The hierarchy is broken down into three levels based on the reliability of inputs as follows: • Level 1: Observable inputs such as quoted prices in active markets for identical assets or liabilities to which the Company has access at a measurement date. • Level 2: Observable inputs other than Level 1 quoted prices that are observable for the asset or liability, either directly or indirectly; these include quoted prices for similar assets or liabilities in an active market, quoted prices for identical assets and liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. • Level 3: Unobservable inputs for which little or no market data exists and for which the Company must develop its own assumptions regarding the assumptions that market participants would use in pricing the asset or liability, including assumptions regarding risk. Note 3 – Summary of Significant Accounting Policies, continued Because of the uncertainties inherent in the valuation of assets or liabilities for which there are no observable inputs, those estimated fair values may differ significantly from the values that may have been used had a ready market for the assets or liabilities existed. The carrying amounts of the Company’s financial assets and liabilities, such as cash, cash equivalents, prepaid expenses, other current assets, and accounts payable & accrued expenses, are an approximate of their fair values because of the short maturity of these instruments. The Company’s derivative liabilities recognized at fair value on a recurring basis are a level 3 measurement (see Note 8 – Fair Value Measurement).
Revenue Recognition	Revenue Recognition The Company follows Accounting Standards Codification (“ASC”) 606, "Revenue from Contracts with Customers" (“Topic 606”). In accordance with Topic 606, the Company recognizes revenue using the following five-step approach: 1. Identify the contract with a customer. 2. Identify the performance obligations in the contract. 3. Determine the transaction price of the contract. 4. Allocate the transaction price to the performance obligations in the contract. 5. Recognize revenue when or as the performance obligations are satisfied. The Company’s revenue consists of its single segment of wireless charging system solutions. The wireless charging system revenue consists of revenue from product development projects and production-level systems. During the three months ended March 31, 2023 and 2022, the Company recognized $96,676 and $215,961, respectively, in revenue. The Company records revenue associated with product development projects that it enters into with certain customers. In general, these product development projects are complex, and the Company does not have certainty about its ability to achieve the project milestones. The achievement of a milestone is dependent on the Company’s performance obligation and requires acceptance by the customer. The Company recognizes this revenue at the point in time at which the performance obligation is met. The payment associated with achieving the performance obligation is generally commensurate with the Company’s effort or the value of the deliverable and is nonrefundable. The Company records the expenses related to these product development projects in research and development expense, in the periods such expenses were incurred.
Inventory	Inventory The Company follows ASC 330, Inventory
Research and Development	Research and Development Research and development expenses are charged to operations as incurred. For internally developed patents, all patent costs are expensed as incurred as research and development expense. Patent application costs, which are generally legal costs, are expensed as research and development costs until such time as the future economic benefits of such patents become more certain. The Company incurred research and development costs of $3,078,524 and $3,527,146 for the three months ended March 31, 2023 and 2022, respectively.
Stock-Based Compensation	Stock-Based Compensation The Company accounts for equity instruments issued to employees, board members and contractors in accordance with accounting guidance that requires awards to be recorded at their fair value on the date of grant and amortized over the vesting period of the award. The Company amortizes compensation costs on a straight-line basis over the requisite service period of the award, which is typically the vesting term of the equity instrument issued. Note 3 – Summary of Significant Accounting Policies, continued Under the ESPP, employees may purchase a limited number of shares of the Company’s common stock at a 15% discount from the lower of the closing market prices measured on the first and last days of each half-year period. The Company recognizes stock-based compensation expense for the fair value of the purchase options, as measured on the grant date.
Income Taxes	Income Taxes Tax benefits are recognized only for tax positions that are more likely than not to be sustained upon examination by tax authorities. The amount recognized is measured as the largest amount of benefit that is greater than 50 percent likely to be realized upon settlement. A liability for “unrecognized tax benefits” is recorded for any tax benefits claimed in the Company’s tax returns that do not meet these recognition and measurement standards. As of March 31, 2023, no liability for unrecognized tax benefits was required to be reported. The guidance from ASC 740, Income Taxes,
Net Loss Per Common Share	Net Loss Per Common Share Basic net loss per share is computed by dividing net loss available to common stockholders by the weighted average number of shares of common stock outstanding during the period. Diluted earnings per share is computed using the weighted average number of common shares and, if dilutive, potential common shares outstanding during the period. Potential common shares consist of the incremental common shares issuable upon the exercise of stock options and warrants (using the treasury stock method), the vesting of restricted stock units (“RSUs”) and performance stock units (“PSUs”) and the enrollment of employees in the ESPP. The computation of diluted loss per share excludes potentially dilutive securities of 12,890,622 and 5,682,499, as outlined in the table below, for the three months ended March 31, 2023 and 2022, respectively, because their inclusion would be anti-dilutive. For the Three Months Ended March 31, 2023 2022 Warrants issued to investors 9,916,666 3,284,789 Options to purchase common stock 300,000 825,006 RSUs 2,673,956 1,572,704 Total potentially dilutive securities 12,890,622 5,682,499
Leases	Leases The Company determines if an arrangement is a lease at the inception of the arrangement. The Company applies the short-term lease recognition exemption and recognizes lease payments in profit or loss at lease commencement for facility or equipment leases that have a lease term of 12 months or less and do not include a purchase option whose exercise is reasonably certain. Operating leases are included in operating lease right-of-use (“ROU”) assets and operating lease liabilities. ROU assets represent the right to use an underlying asset for the lease term, and lease liabilities represent the obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are measured and recorded at the later of the adoption date, January 1, 2019, or the service commencement date based on the present value of lease payments over the lease term. The Company uses the implicit interest rate when readily determinable; however, most leases do not establish an implicit rate, so the Company uses an estimate of the incremental borrowing rate based on the information available at the time of measurement. Lease expense for lease payments is recognized on a straight-line basis over the lease term. See Note 4 – Commitments and Contingencies, Operating Leases
Management's Evaluation of Subsequent Events	Management’s Evaluation of Subsequent Events The Company evaluates events that have occurred after the balance sheet date of March 31, 2023, through the date which the financial statements are available to be issued.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	3 Months Ended
	Mar. 31, 2023
Accounting Policies [Abstract]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share	The computation of diluted loss per share excludes potentially dilutive securities of 12,890,622 and 5,682,499, as outlined in the table below, for the three months ended March 31, 2023 and 2022, respectively, because their inclusion would be anti-dilutive. For the Three Months Ended March 31, 2023 2022 Warrants issued to investors 9,916,666 3,284,789 Options to purchase common stock 300,000 825,006 RSUs 2,673,956 1,572,704 Total potentially dilutive securities 12,890,622 5,682,499

Commitments and Contingencies (

Commitments and Contingencies (Tables)	3 Months Ended
	Mar. 31, 2023
Commitments And Contingencies Disclosure [Abstract]
Schedule of Reconciliation of Undiscounted Cash Flows to Lease Liabilities Recognized	A reconciliation of undiscounted cash flows to lease liabilities recognized as of March 31, 2023 is as follows: Amount (unaudited) 2023 562,555 2024 733,497 2025 562,408 Total future lease payments 1,858,460 Present value discount (2.9% weighted average) (65,041 ) Total operating lease liabilities $ 1,793,419

Stock Based Compensation (Table

Stock Based Compensation (Tables)	3 Months Ended
	Mar. 31, 2023
Summary of Fair Values of Stock Options Granted	The fair values of stock options granted during the second quarter of 2022 were estimated using the following assumptions: Three Months Ended June 30, 2022 Stock price $ 1.27 Dividend yield 0 % Expected volatility 108 % Risk-free interest rate 1.92 % Expected life 5.6 years
Summary of Stock Option Activity	The following is a summary of the Company’s stock option activity during the three months ended March 31, 2023: Number of Options Weighted Average Exercise Price Weighted Average Remaining Life In Years Intrinsic Value Outstanding at January 1, 2023 300,262 $ 1.27 8.9 $ – Granted – – – – Exercised – – – – Forfeited (262 ) 2.49 – – Outstanding at March 31, 2023 300,000 $ 1.27 8.7 $ – Exercisable at January 1, 2023 262 $ 2.49 0.3 $ – Vested – – – – Exercised – – – – Forfeited (262 ) 2.49 – – Exercisable at March 31, 2023 – $ – – $ –
Schedule of Restricted Stock Units Activity	A summary of the activity related to RSUs for the three months ended March 31, 2023 is presented below: Total Weighted Average Grant Date Fair Value Outstanding at January 1, 2023 2,165,132 $ 1.63 RSUs granted 708,202 0.69 RSUs forfeited (12,500 ) 1.27 RSUs vested (186,878 ) 2.08 Outstanding at March 31, 2023 2,673,956 $ 1.35
Summary of Stock-based Compensation Costs Recognized	The following tables summarize total stock-based compensation costs recognized for the three months ended March 31, 2023 and 2022: Three Months Ended March 31, 2023 2022 Stock options $ 21,095 $ 10,313 RSUs 476,242 745,620 ESPP 24,740 40,973 Total $ 522,077 $ 796,906
Summary of Stock-based Compensation Reflected within Statements of Operations	The total amount of stock-based compensation was reflected within the statements of operations as: Three Months Ended March 31, 2023 2022 Research and development $ 208,731 $ 353,043 Sales and marketing 104,903 180,377 General and administrative 208,443 263,486 Total $ 522,077 $ 796,906
Employee Stock Purchase Plan [Member]
Summary of Fair Values of Stock Options Granted	The fair values of ESPP purchase options granted were estimated using the following assumptions: Three Months Ended March 31, 2023 2022 Stock price $ 0.836 $ 1.25 Dividend yield 0 % 0 % Expected volatility 59 % 61 % Risk-free interest rate 4.42 % 0.19 % Expected life 6 months 6 months

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis	The following tables present information about the Company’s assets and liabilities that are measured at fair value on a recurring basis as of March 31, 2023 and December 31, 2022 and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value: Balance as of March 31, 2023 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents $ 26,339,960 $ – $ – $ 26,339,960 Liabilities: Warrant liability $ – $ – $ 3,135,000 $ 3,135,000 Balance as of December 31, 2022 Level 1 Level 2 Level 3 Total Assets: Cash and cash equivalents $ 26,287,293 $ – $ – $ 26,287,293 Liabilities: Warrant liability $ – $ – $ – $ –
Schedule of Estimated Fair Value of the Warrant Liability	The key inputs into the Monte Carlo simulation model for the 2023 Warrants are as follows: At March 31, 2023 Share price $ 0.54 Exercise price $ 0.40 Term (in years) 6 Volatility 65 % Risk-free rate 3.6 % Dividend yield 0 %

Liquidity and Management Plans

Liquidity and Management Plans - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2021
Liquidity And Management Plans [Line Items]
Engineering product development	$ 96,676	$ 215,961
Net loss	(6,652,507)	(7,152,718)
Net cash provided by (used in) operating activities	(5,364,355)	(6,356,971)
Net proceeds of securities offerings	5,351,888		$ 744,787	$ 27,043,751
Cash and cash equivalents, at carrying value, total	26,339,960		$ 26,287,293
Technology Service [Member]
Liquidity And Management Plans [Line Items]
Engineering product development	$ 96,676	$ 215,961

Significant Accounting Policies

Significant Accounting Policies - Additional Information (Detail) - USD ($)		3 Months Ended
	Apr. 30, 2015	Mar. 31, 2023	Mar. 31, 2022	Mar. 28, 2023
Summary Of Significant Accounting Policies [Line Items]
Revenue		$ 96,676	$ 215,961
Research and development expense, total		3,078,524	3,527,146
Liability for unrecognized tax benefits		0
Interest or penalties for uncertain tax positions		$ 0	$ 0
Antidilutive securities excluded from computation of earnings per share, amount		12,890,622	5,682,499
Class of Warrant or Right, Exercise Price of Warrants or Rights				$ 0.40
Warrants Issued to Investors [Member]
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount		9,916,666	3,284,789
Warrants Issued to Investors [Member] | Expiring at March 1 2024 [Member]
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount		1,666,666
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 10
Warrants Issued to Investors [Member] | Expiring on March 28 2029 [Member]
Summary Of Significant Accounting Policies [Line Items]
Antidilutive securities excluded from computation of earnings per share, amount		8,250,000
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 0.40
Employee Stock Purchase Plan [Member]
Summary Of Significant Accounting Policies [Line Items]
Common stock purchase price discount percentage	85%	15%
Product Development Projects Revenue [Member]
Summary Of Significant Accounting Policies [Line Items]
Revenue		$ 96,676	$ 215,961

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Detail) - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Summary Of Significant Accounting Policies [Line Items]
Total potentially dilutive securities	12,890,622	5,682,499
Warrants Issued to Investors [Member]
Summary Of Significant Accounting Policies [Line Items]
Total potentially dilutive securities	9,916,666	3,284,789
Employee Stock Option [Member]
Summary Of Significant Accounting Policies [Line Items]
Total potentially dilutive securities	300,000	825,006
Restricted Stock Units (RSUs) [Member]
Summary Of Significant Accounting Policies [Line Items]
Total potentially dilutive securities	2,673,956	1,572,704

Commitments and Contingencies -

Commitments and Contingencies - Operating Leases - Additional Information (Detail) - USD ($)		1 Months Ended
	Oct. 01, 2021	Oct. 31, 2022	Mar. 31, 2023	Dec. 31, 2022	May 20, 2022	Oct. 31, 2021
Commitments And Contingencies [Line Items]
ROU lease assets			$ 1,778,512	$ 1,959,869
Operating lease liability			702,780	705,894
Total operating lease payments			1,858,460
Long-term portion of operating lease liabilities			1,090,639	$ 1,264,131
Accounting Standards Update 2016-02
Commitments And Contingencies [Line Items]
ROU lease assets			1,778,512
Operating lease liability			702,780
Total operating lease payments			1,858,460
Long-term portion of operating lease liabilities			$ 1,090,639
Weighted average remaining lease term			2 years 6 months
San Jose, California [Member]
Commitments And Contingencies [Line Items]
Operating lease, renewal term					3 years
ROU lease assets					$ 2,071,336
Operating lease liability					$ 2,071,336
Operating lease present value discount rate					3%
Operating lease payment		$ 58,903
San Jose, California [Member] | Maximum [Member]
Commitments And Contingencies [Line Items]
Maximum monthly lease payment		$ 62,490
Costa Mesa California
Commitments And Contingencies [Line Items]
ROU lease assets						$ 104,563
Operating lease liability						$ 104,563
Operating lease payment	$ 4,369
Costa Mesa California | Maximum [Member]
Commitments And Contingencies [Line Items]
Maximum monthly lease payment	$ 4,522

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Reconciliation of Undiscounted Cash Flows to Lease Liabilities Recognized (Detail)	Mar. 31, 2023 USD ($)
Operating Leases Future Minimum Payments Due [Abstract]
2023	$ 562,555
2024	733,497
2025	562,408
Total future lease payments	1,858,460
Present value discount (2.9% weighted average)	(65,041)
Total operating lease liabilities	$ 1,793,419

Commitments and Contingencies_3

Commitments and Contingencies - Hosted Design Software Agreement - Additional Information (Detail) - USD ($)		1 Months Ended
	Jun. 25, 2015	Jun. 30, 2021
Commitments And Contingencies Disclosure [Abstract]
Initial term of agreement	3 years
Quarterly payments for service agreement		$ 233,000

Commitments and Contingencies_4

Commitments and Contingencies - MBO Bonus Plan - Additional Information (Detail) - Executive Officers [Member] - USD ($)	3 Months Ended			12 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2024	Dec. 31, 2022
Commitments And Contingencies [Line Items]
Accrued bonus expense		$ 560,533			$ 109,452
Forecast
Commitments And Contingencies [Line Items]
Accrued bonus expense	$ 109,452
Accrued Expenses [Member]
Commitments And Contingencies [Line Items]
Accrued bonus expense		$ 62,001	$ 125,468
Bonus accrued but not yet paid					$ 688,364
Accrued Expenses [Member] | Forecast
Commitments And Contingencies [Line Items]
Accrued bonus expense				$ 171,453

Commitments and Contingencies_5

Commitments and Contingencies - Executive Employee Agreement - Cesar Johnston - Additional Information (Detail)					3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2024 shares	Dec. 31, 2023 shares	Jul. 20, 2022 shares	Dec. 09, 2021 USD ($) Installment shares	Mar. 31, 2023 shares	Sep. 30, 2022 shares	Dec. 31, 2024 shares	Dec. 31, 2023 shares	Dec. 31, 2022 shares
Performance Share Units [Member]
Commitments And Contingencies [Line Items]
Shares vested									135,575
Performance Share Units [Member] | Maximum [Member] | Share Based Compensation [Member]
Commitments And Contingencies [Line Items]
Shares vested					100,000
Mr. Johnston [Member]
Commitments And Contingencies [Line Items]
Salary | $				$ 400,000
Annual bonus, percentage				100%
One time sign on bonus amount | $				$ 120
Bonus payable, number of installments | Installment				2
Bonus payable installment amount | $				$ 60
Debt description					a grant of 150,000 RSUs to acquire shares of the Company’s common stock, one third of which vested on December 6, 2022 and the remaining two thirds of which vest in eight equal installments of 12,500 each on each quarterly anniversary thereafter
Options granted				300,000
Target bonus percentage				100%
Mr. Johnston [Member] | Johnston A&R CIC Agreement [Member]
Commitments And Contingencies [Line Items]
Target bonus percentage				150%
Mr. Johnston [Member] | Performance Share Units [Member]
Commitments And Contingencies [Line Items]
Additional equity award				287,000
Vesting percentage				33.30%
Vesting period				3 years
Additional equity award per year.				25,000
Shares granted			287,000			287,000			287,000
Shares vested						287,000
Mr. Johnston [Member] | Performance Share Units [Member] | Forecast | Share Based Compensation [Member]
Commitments And Contingencies [Line Items]
Shares vested	50,000	50,000
Mr. Johnston [Member] | Performance Share Units [Member] | Maximum [Member]
Commitments And Contingencies [Line Items]
Shares vested									187,000
Mr. Johnston [Member] | Performance Share Units [Member] | Maximum [Member] | Forecast
Commitments And Contingencies [Line Items]
Shares vested	50,000	50,000					50,000	50,000

Commitments and Contingencies_6

Commitments and Contingencies - Employee Agreement - Stephen Rizzone - Additional Information (Detail) - USD ($)				3 Months Ended
	Jul. 09, 2021	Jun. 25, 2015	Jan. 01, 2015	Mar. 31, 2023	Dec. 31, 2022
Commitments And Contingencies [Line Items]
Initial term of agreement		3 years
Accrued severance expense				$ 249,610	$ 416,516
Mr. Rizzone [Member]
Commitments And Contingencies [Line Items]
Agreement effective date			Jan. 01, 2015
Initial term of agreement			4 years
Officers' compensation				$ 365,000
Employment agreement percentage of base salary				100%
Accrued severance expense				$ 249,610
Mr. Rizzone [Member] | Separation Agreement [Member]
Commitments And Contingencies [Line Items]
Compensation-based payments	$ 1,460,000
Additional lump sum cash payment	$ 2,000,000
Description of other commitments	a pro-rated bonus payment for the two months of employment during the current quarterly bonus period payable at the same time bonus payments are made to other executives of the Company, settlement of deferred vested RSUs and an extension of the exercise periods of all stock options held by Mr. Rizzone until the one year anniversary of his termination date, and additional benefits related to Mr. Rizzone’s medical insurance.

Commitments and Contingencies_7

Commitments and Contingencies - Employee Agreement - Neeraj Sahejpal - Additional Information (Detail) - USD ($)	Apr. 29, 2022	Mar. 31, 2023	Dec. 31, 2022
Commitments And Contingencies [Line Items]
Accrued severance expense		$ 249,610	$ 416,516
Mr. Neeraj Sahejpal [Member]
Commitments And Contingencies [Line Items]
Salary	$ 261,250
Potential bonus	$ 261,250
Accrued severance expense		$ 0
Mr. Neeraj Sahejpal [Member] | Restricted Stock Units (RSUs) [Member]
Commitments And Contingencies [Line Items]
Shares vested	85,943

Commitments and Contingencies_8

Commitments and Contingencies - Strategic Alliance Agreement - Additional Information (Detail)		1 Months Ended
	Jun. 25, 2015	Nov. 30, 2016
Commitments And Contingencies [Line Items]
Initial term of agreement	3 years
Strategic Alliance Agreement [Member]
Commitments And Contingencies [Line Items]
Initial term of agreement		7 years

Stockholders' Equity - Addition

Stockholders' Equity - Additional Information (Detail)					3 Months Ended			12 Months Ended
	Mar. 28, 2023 USD ($) $ / shares shares	Dec. 16, 2021 USD ($)	Oct. 04, 2021 USD ($)	Sep. 24, 2020 USD ($)	Mar. 31, 2023 USD ($) Vote shares	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2022 USD ($) shares	Dec. 31, 2021 USD ($)	Dec. 31, 2020
Class of Stock [Line Items]
Number of common stock voting entitlement per share | Vote					1
Securities reserved for issuance	$ 2,677,191	$ 100,000,000
At-the-market ("ATM") funds receivable						$ 38,832,711	$ 38,832,711
Accounting issuance costs will be paid				$ 1,167,289
Issuance of shares in an at-the-market ("ATM") placement, net of $68,637 in issuance costs					$ 2,674,697
Common stock, shares issued | shares	8,250,000				91,032,030			78,944,954
Class of warrant or right, number of securities called by warrants or rights | shares	8,250,000
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares	$ 0.40
Warrants exercisable term	6 years
Common stock outstanding abstract					Our outstanding shares of common stock typically include shares that are deemed delivered under US GAAP. Shares that are deemed delivered currently include shares that have vested, but have not yet been delivered, under tax-deferred equity awards, as well as shares purchased under the ESPP where actual transfer of shares normally occurs a few days after the completion of the purchase periods. There are no voting rights for shares that are deemed delivered under US GAAP until the actual delivery of shares takes place. There are currently 200,000,000 shares of common stock authorized for issuance.
Common stock, shares authorized | shares					200,000,000			200,000,000
Maximum [Member]
Class of Stock [Line Items]
Securities reserved for issuance				75,000,000
Sales Agreement [Member]
Class of Stock [Line Items]
Sale of stock, Description										The $40,000,000 of common stock to be offered, issued and sold under the ATM Program is included in the $75,000,000 of securities that may be offered, issued and sold by the Company under the base prospectus.
Issuance of shares in an at-the-market ("ATM") placement, net of $68,637 in issuance costs					$ 2,674,697			$ 744,787	$ 27,043,751
Net of issuance costs from offering of shares					68,637			$ 73,403	$ 868,122
Remaining securities under agreements to Repurchase on shelf registration statement					$ 3,526,605
Sales Agreement [Member] | Maximum [Member]
Class of Stock [Line Items]
Proceeds from (Payments for) in Securities Sold under Agreements			$ 35,000,000	$ 40,000,000

Stock Based Compensation - Equi

Stock Based Compensation - Equity Incentive Plan - Additional Information (Detail) - USD ($)			3 Months Ended
	Mar. 31, 2023	Apr. 30, 2015	Mar. 31, 2023	Jul. 20, 2022	Jun. 16, 2021	May 26, 2020	Dec. 28, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee contribution through payroll withholdings	$ 65,134		$ 65,134
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized for issuance					1,550,000
Common stock, capital shares reserved for future issuance		600,000			700,000
Common stock remain eligible to be issued	201,619		201,619
Lowest percentage of annual compensation to be utilized by an employee for purchase of shares under the plan		1%
Highest percentage of annual compensation to be utilized by an employee for purchase of shares under the plan		10%
Maximum number of shares permitted to purchase		7,500
Vesting period		6 months
Exercise price discount from fair value on offering date		85%
Exercise price discount from fair value on exercise date		85%	15%
Share-based compensation arrangement by share-based payment award, terms of award	In April 2015, the Company’s Board approved the ESPP, under which 600,000 shares of common stock have been reserved for purchase by the Company’s employees, subject to the approval by the Company’s stockholders. On May 21, 2015, the Company’s stockholders approved the ESPP. Effective on June 16, 2021, the Company’s stockholders approved the amendment and restatement of the ESPP to increase the number of shares reserved for issuance through equity-based instruments thereunder by 700,000 shares, bring to 1,550,000 the total number of shares approved for issuance under that plan. Under the ESPP, employees may designate an amount not less than 1% but not more than 10% of their annual compensation for the purchase of Company shares. No more than 7,500 shares may be purchased by an employee under the ESPP during an offering period. An offering period shall be six months in duration commencing on or about January 1 and July 1 of each year. The exercise price of the option will be the lesser of 85% of the fair market of the common stock on the first business day of the offering period and 85% of the fair market value of the common stock on the applicable exercise date.
2013 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized for issuance					8,785,967
Common stock, capital shares reserved for future issuance					1,500,000
Common stock remain eligible to be issued	1,248,896		1,248,896
Non-Employee Equity Compensation Plan 2014 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized for issuance						1,650,000
Common stock, capital shares reserved for future issuance						800,000
Common stock remain eligible to be issued	546,238		546,238
2015 Performance Share Unit Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares authorized for issuance					5,110,104
Common stock, capital shares reserved for future issuance					1,700,000
Common stock remain eligible to be issued	2,275,438		2,275,438
2017 Equity Inducement Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance				2,000,000
Common stock remain eligible to be issued	1,041,170		1,041,170
2017 Equity Inducement Plan [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, capital shares reserved for future issuance							600,000

Stock Based Compensation - Stoc

Stock Based Compensation - Stock Option Award Activity - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended
	Feb. 28, 2022	Mar. 31, 2023
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation, nonvested awards, compensation not yet recognized, stock options		$ 212,594
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition		2 years 4 months 24 days
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		0
Exercise price per share of shares granted		$ 0
2013 Equity Incentive Plan [Member] | Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted		0
2013 Equity Incentive Plan [Member] | Employee Stock Option [Member] | Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	300,000
Exercise price per share of shares granted	$ 1.27
Share-based compensation arrangement by share-based payment award, award vesting description	half of the options vesting on the second anniversary of the vesting start date and a quarter of the options vesting on each of the two following anniversaries

Stock Based Compensation - Summ

Stock Based Compensation - Summary of Fair Values of Stock Options Granted (Detail) - Employee Stock Option [Member] - $ / shares	3 Months Ended
	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock price		$ 1.27
Dividend yield		0%
Expected volatility		108%
Risk-free interest rate		1.92%
Expected life		5 years 7 months 6 days
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock price	$ 0.836		$ 1.25
Dividend yield	0%		0%
Expected volatility	59%		61%
Risk-free interest rate	4.42%		0.19%
Expected life	6 months		6 months

Stock Based Compensation - Su_2

Stock Based Compensation - Summary of Stock Option Activity (Detail) - Employee Stock Option [Member] - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Outstanding	300,262
Shares granted	0
Number of Options, Exercised	0
Number of Options, Forfeited	(262)
Number of Options, Outstanding	300,000	300,262
Number of Options, Exercisable	262
Number of Options, Vested	0
Number of Options, Exercised	0
Number of Options, Forfeited	(262)
Number of Options, Exercisable	0	262
Weighted Average Exercise Price, Outstanding	$ 1.27
Weighted Average Exercise Price, Granted	0
Weighted Average Exercise Price, Exercised	0
Weighted Average Exercise Price, Forfeited	2.49
Weighted Average Exercise Price, Outstanding	1.27	$ 1.27
Weighted Average Exercise Price, Exercisable	2.49
Weighted Average Exercise Price, Vested	0
Weighted Average Exercise Price, Exercised	0
Weighted Average Exercise Price, Forfeited	2.49
Weighted Average Exercise Price, Exercisable	$ 0	$ 2.49
Weighted Average Remaining Life In Years, Outstanding	8 years 8 months 12 days	8 years 10 months 24 days
Weighted Average Remaining Life In Years, Exercisable		3 months 18 days
Intrinsic Value, Outstanding	$ 0	$ 0
Intrinsic Value, Exercisable	$ 0	$ 0

Stock Based Compensation - Perf

Stock Based Compensation - Performance Share Units - Additional Information (Detail) - Performance Share Units [Member] - shares				3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Jul. 20, 2022	Mar. 31, 2023	Sep. 30, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options vested in period								135,575
Maximum [Member] | Share Based Compensation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options vested in period				100,000
Mr. Johnston [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period			287,000		287,000			287,000
Share based compensation arrangement by share based payment award equity instruments other than options vested in period					287,000
Mr. Johnston [Member] | Forecast | Share Based Compensation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options vested in period	50,000	50,000
Mr. Johnston [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options vested in period								187,000
Mr. Johnston [Member] | Maximum [Member] | Forecast
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation arrangement by share based payment award equity instruments other than options vested in period	50,000	50,000				50,000	50,000

Stock Based Compensation - Rest

Stock Based Compensation - Restricted Stock Units - Additional Information (Detail) - Restricted Stock Units (RSUs) [Member]	3 Months Ended
	Mar. 31, 2023 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee service share-based compensation, nonvested awards, compensation not yet recognized, share-based awards other than options | $	$ 2,469,552
Employee service share-based compensation, nonvested awards, compensation cost not yet recognized, period for recognition	2 years
2013 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period	4 years
2013 Equity Incentive Plan [Member] | Employee [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period	48,750
Non-Employee Equity Compensation Plan 2014 [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period	1 year
Non-Employee Equity Compensation Plan 2014 [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period	4 years
Non-Employee Equity Compensation Plan 2014 [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period	124,452
2017 Equity Inducement Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, award vesting period	4 years
2017 Equity Inducement Plan [Member] | Employee [Member] | Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period	535,000

Stock Based Compensation - Sche

Stock Based Compensation - Schedule of Restricted Stock Units Activity (Detail) - Restricted Stock Units (RSUs) [Member]	3 Months Ended
	Mar. 31, 2023 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Options, Outstanding | shares	2,165,132
Shares Granted | shares	708,202
Shares Forfeited | shares	(12,500)
Shares Vested | shares	(186,878)
Number of Options, Outstanding | shares	2,673,956
Weighted Average Grant Date Fair Value, Beginning Balance | $ / shares	$ 1.63
Weighted Average Grant Date Fair Value, Shares Granted | $ / shares	0.69
Weighted Average Grant Date Fair Value, Shares Forfeited | $ / shares	1.27
Weighted Average Grant Date Fair Value, Shares Vested | $ / shares	2.08
Weighted Average Grant Date Fair Value, Ending Balance | $ / shares	$ 1.35

Stock Based Compensation - Empl

Stock Based Compensation - Employee Stock Purchase Plan - Additional Information (Detail) - Employee Stock Purchase Plan [Member] - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value	$ 0.27	$ 0.40
Percentage of proportionate value of call option of stock	85%
Percentage of proportionate value of put option of stock	15%
Compensation-based payments	$ 24,740	$ 40,973

Stock Based Compensation - Su_3

Stock Based Compensation - Summary of Stock-based Compensation Costs Recognized (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Stock options	$ 21,095	$ 10,313
Total	522,077	796,906
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation-based payments	476,242	745,620
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation-based payments	$ 24,740	$ 40,973

Stock Based Compensation - Su_4

Stock Based Compensation - Summary of Stock-based Compensation Reflected within Statements of Operations (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Share-based Compensation, Total	$ 522,077	$ 796,906
Research and Development Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation-based payments	208,731	353,043
Selling and Marketing Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation-based payments	104,903	180,377
General and Administrative Expense [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Compensation-based payments	$ 208,443	$ 263,486

Warrant Liability - Additional

Warrant Liability - Additional Information (Detail) - USD ($)		3 Months Ended
	Mar. 28, 2023	Mar. 31, 2023
Class Of Warrant Or Right [Line Items]
Class of warrant or right, number of securities called by warrants or rights	8,250,000
Warrants exercisable term	6 years
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 0.40
Warrants Two Thousand Twenty Three
Class Of Warrant Or Right [Line Items]
Warrant liability		$ 3,135,000
Common Stock [Member] | Warrants Two Thousand Twenty Three
Class Of Warrant Or Right [Line Items]
Number of warrants issued		8,250,000
Class of warrant or right, number of securities called by warrants or rights		8,250,000
Warrants exercisable term		6 years
Warrants of exercisable beginning		Mar. 28, 2023
Each warrant of exercisable		1
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 0.40

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of Fair Value of Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Liabilities:
Warrant liability	$ 3,135,000
Fair Value Measurements Recurring [Member]
Assets:
Cash and cash equivalents	26,339,960	$ 26,287,293
Liabilities:
Warrant liability	3,135,000
Level 1 [Member] | Fair Value Measurements Recurring [Member]
Assets:
Cash and cash equivalents	26,339,960	$ 26,287,293
Level 3 [Member] | Fair Value Measurements Recurring [Member]
Liabilities:
Warrant liability	$ 3,135,000

Fair Value Measurements - Sch_2

Fair Value Measurements - Schedule of Estimated Fair Value of the Warrant Liability (Detail) - Warrants Two Thousand Twenty Three - Level 3 [Member]	Mar. 31, 2023 $ / shares
Share Price [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Warrants and rights outstanding measurement input	0.54
Exercise Price [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Warrants and rights outstanding measurement input	0.40
Term [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Warrants and rights outstanding measurement input term	6 years
Volatility [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Warrants and rights outstanding measurement input	0.65
Risk-Free Rate [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Warrants and rights outstanding measurement input	0.036
Dividend Yield [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Warrants and rights outstanding measurement input	0

Fair Value Measurements - Addit

Fair Value Measurements - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2023 USD ($)
Fair Value Disclosures [Abstract]
Fair value adjustment of warrants	$ 0

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - USD ($)	3 Months Ended		8 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Jun. 28, 2017	Mar. 28, 2023
Related Party Transaction [Line Items]
Class of warrant or right, number of securities called by warrants or rights				8,250,000
Cost of revenue	$ 138,813	$ 203,249
Dialog Semiconductor Plc [Member]
Related Party Transaction [Line Items]
Equity method investment, ownership percentage	1.90%
Dialog Semiconductor Plc [Member]
Related Party Transaction [Line Items]
Warrants outstanding	0
Revenue from related parties	$ 0	0
Dialog Semiconductor Plc [Member] | Chip Development Expense [Member]
Related Party Transaction [Line Items]
Cost of revenue	$ 124,055	$ 0
Private Placements [Member] | Dialog Semiconductor Plc [Member]
Related Party Transaction [Line Items]
Stock issued during period, shares, new issues			1,739,691
Private Placements [Member] | Warrants Issued to Investors [Member] | Dialog Semiconductor Plc [Member]
Related Party Transaction [Line Items]
Class of warrant or right, number of securities called by warrants or rights			1,417,565

Customer Concentrations - Addit

Customer Concentrations - Additional Information (Detail) - Customer Concentration Risk [Member] - Customer	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Revenues [Member] | Three Customer [Member]
Concentration Risk [Line Items]
Number of customers	2	2
Concentration percentage	84%	53%
Accounts Receivable [Member] | Four Customer [Member]
Concentration Risk [Line Items]
Number of customers	2		1
Concentration percentage	80%		87%