10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2020

OR 

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ____ to ____

Commission File Number 001-33351

_________________________________________________ 

 NEUROMETRIX, INC.

(Exact name of registrant as specified in its charter)

Delaware	04-3308180
(State or other jurisdiction of	(I.R.S. Employer Identification No.)
incorporation or organization)
4B Gill Street Woburn, Massachusetts	01801
(Address of principal executive offices)	(Zip Code)

(781) 890-9989

(Registrant’s telephone number, including area code) 

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of exchange on which registered
Common Stock, $0.0001 par value per share	NURO	The Nasdaq Stock Market LLC
Preferred Stock Purchase Rights

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes x     No ¨

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).

Yes x     No ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See definition of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act:

Large accelerated filer ¨	Accelerated filer ¨	Non-accelerated filer ¨	Smaller reporting company x
			Emerging growth company ¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes ¨     No x

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date: 3,784,657 shares of common stock, par value $0.0001 per share, were outstanding as of October 21, 2020.

NeuroMetrix, Inc.

Form 10-Q

Quarterly Period Ended September 30, 2020

TABLE OF CONTENTS

PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements:
	Balance Sheets as of September 30, 2020 (unaudited) and December 31, 2019	1
	Statements of Operations (unaudited) for the Quarters and Nine Months Ended September 30, 2020 and 2019	2
	Statement of Changes in Stockholders' Equity (unaudited) for the Quarters and Nine Months Ended September 30, 2020 and 2019	3
	Statements of Cash Flows (unaudited) for the Nine Months Ended September 30, 2020 and 2019	5
	Notes to Unaudited Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	13
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	21
Item 4.	Controls and Procedures	21
PART II – OTHER INFORMATION
Item 1.	Legal Proceedings	22
Item 1A.	Risk Factors	22
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	22
Item 3.	Defaults Upon Senior Securities	22
Item 4.	Mine Safety Disclosures	22
Item 5.	Other Information	22
Item 6.	Exhibits	22
Signatures		23

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PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

NeuroMetrix, Inc.

Balance Sheets

	September 30, 2020			December 31, 2019
	(Unaudited)
Assets
Current assets:
Cash and cash equivalents	$	4,929,175		$	3,126,206
Accounts receivable, net	633,146			298,967
Inventories	1,050,293			1,163,714
Collaboration receivable	—			189,008
Prepaid expenses and other current assets	677,526			652,919
Total current assets	7,290,140			5,430,814
Fixed assets, net	205,676			273,448
Right to use asset	815,558			1,159,774
Other long-term assets	28,664			29,650
Total assets	$	8,340,038		$	6,893,686
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable	$	192,356		$	725,658
Accrued expenses and compensation	1,011,228			1,443,574
Accrued product returns	586,000			689,000
Lease obligation, current	596,779			588,546
Total current liabilities	2,386,363			3,446,778
Lease obligation, net of current portion	581,903			916,674
Total liabilities	2,968,266			4,363,452
Commitments and contingencies
Stockholders’ equity:
Preferred stock	—			—
Convertible preferred stock	1			1
Common stock, $0.0001 par value; 25,000,000 shares authorized at September 30, 2020 and December 31, 2019; 3,784,657 and 1,400,674 shares issued and outstanding at September 30, 2020 and December 31, 2019, respectively	378			140
Additional paid-in capital	201,927,426			197,319,698
Accumulated deficit	(196,556,033		)	(194,789,605		)
Total stockholders’ equity	5,371,772			2,530,234
Total liabilities and stockholders’ equity	$	8,340,038		$	6,893,686

The accompanying notes are an integral part of these interim financial statements.

1

NeuroMetrix, Inc.

Statements of Operations

(Unaudited)

	Quarters Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
Revenues	$	2,036,228		$	2,088,001		$	5,568,243		$	7,565,619
Cost of revenues	537,614			914,322			1,652,890			6,382,340
Gross profit	1,498,614			1,173,679			3,915,353			1,183,279
Operating expenses:
Research and development	652,671			475,137			1,846,569			2,365,139
Sales and marketing	340,927			647,719			1,144,389			4,046,956
General and administrative	762,903			1,462,887			2,693,146			4,646,932
Total operating expenses	1,756,501			2,585,743			5,684,104			11,059,027
Loss from operations	(257,887		)	(1,412,064		)	(1,768,751		)	(9,875,748		)
Other income:
Collaboration income	—			—			—			7,116,667
Other income	774			7,464			2,323			42,797
Total other income	774			7,464			2,323			7,159,464
Net loss	$	(257,113	)	$	(1,404,600	)	$	(1,766,428	)	$	(2,716,284	)
Net loss per common share applicable to common stockholders, basic and diluted	$	(0.07	)	$	(1.44	)	$	(0.64	)	$	(3.06	)

The accompanying notes are an integral part of these interim financial statements.

2

NeuroMetrix, Inc.

Statements of Changes in Stockholders' Equity

(Unaudited)

	Series B Convertible Preferred Stock			Common Stock			Additional Paid-In Capital		Accumulated Deficit			Total
	Number of Shares	Amount		Number of Shares	Amount
Balance at December 31, 2019	200.00	$	1	1,400,674	$	140	$	197,319,698	$	(194,789,605	)	$	2,530,234
Stock-based compensation expense	—	—		—	—		144,047		—			144,047
Issuance of common stock under at the market offering	—	—		256,078	25		453,432		—			453,457
Issuance of common stock to settle compensation obligations	—	—		31,000	3		43,748		—			43,751
Net loss		—							(657,371		)	(657,371		)
Balance at March 31, 2020	200.00	$	1	1,687,752	$	168	$	197,960,925	$	(195,446,976	)	$	2,514,118
Stock-based compensation expense	—	—		—	—		128,862		—			128,862
Issuance of common stock under at the market offering	—	—		2,092,541	209		3,689,765		—			3,689,974
Issuance of common stock under employee stock purchase plan	—	—		4,364	1		7,605		—			7,606
Net loss	—	—		—	—		—		(851,944		)	(851,944		)
Balance at June 30, 2020	200.00	$	1	3,784,657	$	378	$	201,787,157	$	(196,298,920	)	$	5,488,616
Stock-based compensation expense	—	—		—	—		140,269		—			140,269
Net loss	—	—		—	—		—		(257,113		)	(257,113		)
Balance at September 30, 2020	200.00	$	1	3,784,657	$	378	$	201,927,426	$	(196,556,033	)	$	5,371,772

The accompanying notes are an integral part of these interim financial statements.

3

NeuroMetrix, Inc.

Statements of Changes in Stockholders' Equity

(Unaudited)

	Series B – F Convertible Preferred Stock					Common Stock			Additional Paid-In Capital			Accumulated Deficit			Total
	Number of Shares		Amount			Number of Shares	Amount
Balance at December 31, 2018	17,513.63		$	18		738,029	$	74	$	197,114,310		$	(191,016,591	)	$	6,097,811
Stock-based compensation expense	—		—			—	—		44,093			—			44,093
Issuance of common stock upon conversion of preferred stock	(2,445.90	)	(3		)	93,000	9		(6		)	—			—
Net income	—		—			—	—		—			2,050,507			2,050,507
Balance at March 31, 2019	15,067.73		$	15		831,029	$	83	$	197,158,397		$	(188,966,084	)	$	8,192,411
Stock-based compensation expense	—		—			—	—		19,933			—			19,933
Issuance of common stock upon conversion of preferred stock	(3,813.00	)	(4		)	144,981	15		(11		)	—			—
Issuance of common stock under employee stock purchase plan	—		—			2,148	1		7,496			—			7,497
Net loss	—		—			—	—		—			(3,362,191		)	(3,362,191		)
Balance at June 30, 2019	11,254.73		$	11		978,158	$	99	$	197,185,815		$	(192,328,275	)	$	4,857,650
Stock-based compensation expense	—		—			—	—		120,460			—			120,460
Net loss	—		—			—	—		—			(1,404,600		)	(1,404,600		)
Balance at September 30, 2019	11,254.73		$	11		978,158	$	99	$	197,306,275		$	(193,732,875	)	$	3,573,510

The accompanying notes are an integral part of these interim financial statements.

4

NeuroMetrix, Inc.

Statements of Cash Flows

(Unaudited)

	Nine Months Ended September 30,
	2020			2019
Cash flows from operating activities:
Net loss	$	(1,766,428	)	$	(2,716,284	)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	67,772			98,166
Stock-based compensation	413,178			184,486
Settlement of compensation obligation	43,751			—
Impairment charge against right of use asset	280,000			—
Inventory provision	—			2,595,884
Changes in operating assets and liabilities:
Accounts receivable	(334,179		)	558,968
Inventories	113,421			(357,673		)
Collaboration receivable	189,008			(1,174,092		)
Prepaid expenses and other current and long-term assets	(23,621		)	189,092
Accounts payable	(533,302		)	(659,538		)
Accrued expenses and compensation	(694,668		)	115,752
Accrued product returns	(103,000		)	(438,352		)
Deferred collaboration income	—			(1,956,522		)
Net cash used in operating activities	(2,348,068		)	(3,560,113		)
Cash flows from investing activities:
Purchases of fixed assets	—			(41,177		)
Net cash used in investing activities	—			(41,177		)
Cash flows from financing activities:
Net proceeds from issuance of stock	4,151,037			7,497
Proceeds from debt issuance	773,200			—
Repayment of debt	(773,200		)	—
Net cash provided by financing activities	4,151,037			7,497
Net increase (decrease) in cash and cash equivalents	1,802,969			(3,593,793		)
Cash and cash equivalents, beginning of period	3,126,206			6,780,429
Cash and cash equivalents, end of period	$	4,929,175		$	3,186,636
Supplemental disclosure of cash flow information:
Common stock issued to settle employee compensation	$	43,751		$	—

The accompanying notes are an integral part of these interim financial statements.

5

NeuroMetrix, Inc.

Notes to Unaudited Financial Statements

September 30, 2020

1. Business and Basis of Presentation

Our Business-An Overview

NeuroMetrix, Inc., or the Company, is a leading developer and manufacturer of diagnostic and therapeutic neurostimulation based medical devices that are used throughout the world. The Company has three FDA cleared commercial products. DPNCheck® is a point-of-care test that is used to evaluate peripheral neuropathies. ADVANCE^™ is a point-of-care device that provides nerve conduction studies as an aid in diagnosing and evaluating patients suspected of having focal or systemic neuropathies. Quell^® 2.0 is a wearable, mobile app enabled, neurostimulation device indicated for symptomatic relief and management of chronic pain and is available OTC. The Company maintains an active, industry-leading R&D program.

The accompanying financial statements have been prepared on a basis which assumes that the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the normal course of business. The Company has reported recurring losses from operations and negative cash flows from operating activities. At September 30, 2020, the Company had an accumulated deficit of $196.6 million. These factors raise substantial doubt about the Company’s ability to continue as a going concern for the one-year period from the date of issuance of these financial statements. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. The Company held cash and cash equivalents of $4.9 million as of September 30, 2020. The Company believes that these resources and the cash to be generated from future product sales will be sufficient to meet its projected operating requirements into the fourth quarter of 2021. Accordingly, the Company may need to raise additional funds to support its operating and capital needs in the fourth quarter of 2021 and beyond.

The Company continues to face challenges and uncertainties. Among these uncertainties is the future effect on the Company's business of the COVID-19 pandemic which has depressed sales of the Company's products. As a result, the Company’s available capital resources may be consumed more rapidly than currently expected due to (a) decreases in sales of the Company’s products, including decreases in customer orders related to the COVID-19 pandemic, and the uncertainty of future revenues from new products; (b) the effect of the COVID-19 pandemic on the Company's ability to obtain parts and materials from the Company's suppliers while continuing to staff critical production and fulfillment functions; (c) changes the Company may make to the business that affect ongoing operating expenses; (d) changes the Company may make in its business strategy; (e) regulatory developments affecting the Company’s existing products; (f) changes the Company may make in its research and development spending plans; and (g) other items affecting the Company’s forecasted level of expenditures and use of cash resources.

The Company may attempt to obtain additional funding through public or private financing, collaborative arrangements with strategic partners, or through additional credit lines or other debt financing sources to increase the funds available to fund operations. However, the Company may not be able to secure such funding in a timely manner or on favorable terms, if at all. Furthermore, if the Company issues equity or debt securities to raise additional funds, its existing stockholders may experience dilution, and the new equity or debt securities may have rights, preferences and privileges senior to those of the Company’s existing stockholders. If the Company raises additional funds through collaboration, licensing or other similar arrangements, it may be necessary to relinquish valuable rights to its potential products or proprietary technologies, or grant licenses on terms that are not favorable to the Company. Without additional funds, the Company may be forced to delay, scale back or eliminate some of its sales and marketing efforts, research and development activities, or other operations and potentially delay product development in an effort to provide sufficient funds to continue its operations. If any of these events occurs, the Company’s ability to achieve its development and commercialization goals would be adversely affected.

6

Unaudited Interim Financial Statements

The accompanying unaudited balance sheet as of September 30, 2020, unaudited statements of operations, changes in stockholders' equity for the quarters and nine months ended September 30, 2020 and 2019 and cash flows for the nine months ended September 30, 2020 and 2019 have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. The accompanying balance sheet as of December 31, 2019 has been derived from audited financial statements prepared at that date but does not include all disclosures required by accounting principles generally accepted in the United States of America. In the opinion of management, the financial statements include all normal and recurring adjustments considered necessary for a fair presentation of the Company’s financial position and operating results. Operating results for the nine months endedSeptember 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020 or any other period. These financial statements and notes should be read in conjunction with the financial statements for the year ended December 31, 2019 included in the Company’s Annual Report on Form 10-K, as filed with the Securities and Exchange Commission, or the SEC, on January 28, 2020 (File No. 001-33351), or the Company’s 2019 Form 10-K.

Revenues

Revenues include product sales, net of estimated returns. Revenue is measured as the amount of consideration the Company expects to receive in exchange for product transferred. Revenue is recognized when contractual performance obligations have been satisfied and control of the product has been transferred to the customer. In most cases, the Company has a single product delivery performance obligation. Accrued product returns are estimated based on historical data and evaluation of current information.

Accounts receivable are recorded net of the allowance for doubtful accounts, which represents the Company’s best estimate of credit losses. Allowance for doubtful accounts was $70,000 as of September 30, 2020 and December 31, 2019.

For the quarters ended September 30, 2020 and 2019, three customers accounted for 47% of total revenues and one customer accounted for 19% of total revenues, respectively. For the nine months ended September 30, 2020 and 2019, two customers accounted for 34% and one customer accounted for 20% of total revenues, respectively. Three customers accounted for 54% and two customers accounted for 42% of accounts receivable as of September 30, 2020 and December 31, 2019, respectively.

Collaboration Income

Collaboration Income is recognized within Other Income when contractual performance obligations, outside the ordinary activities of the Company, have been satisfied and control has been transferred to a collaboration partner. Collaboration Income for each performance obligation is based on the fair value of such performance obligation relative to the total fair value of all performance obligations multiplied by the overall transaction price. A deferred collaboration income liability is recorded when payments are received prior to satisfaction of performance obligations. A collaboration receivable is recorded when amounts are owed to the Company under the collaboration agreements and related support services. The Company recognized Collaboration income net of costs, within Other income in the Statement of Operations of zero and $7,116,667, for the nine months ended September 30, 2020 and 2019, respectively.

Stock-based Compensation

Total compensation cost related to non-vested awards not yet recognized at September 30, 2020 was $136,569. The total compensation costs are expected to be recognized over a weighted-average period of 0.3 years.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during reporting periods. Actual results could differ from those estimates.

7

2. Comprehensive Income (Loss)

For the quarters and nine months ended September 30, 2020 and 2019, the Company had no components of other comprehensive income (loss) other than net income (loss) itself.

3. Net Loss Per Common Share

Basic and dilutive net income (loss) per common share were as follows:

	Quarters Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
Net loss applicable to common stockholders	$	(257,113	)	$	(1,404,600	)	$	(1,766,428	)	$	(2,716,284	)
Weighted average number of common shares outstanding, basic	3,784,657			978,175			2,755,903			886,609
Dilutive convertible preferred stock	—			—			—			—
Weighted average number of common shares outstanding, dilutive	3,784,657			978,175			2,755,903			886,609
Net loss per common share applicable to common stockholders, basic and diluted	$	(0.07	)	$	(1.44	)	$	(0.64	)	$	(3.06	)

Shares underlying the following potentially dilutive weighted average number of common stock equivalents were excluded from the calculation of diluted net loss per common share because their effect was anti-dilutive for each of the periods presented: 

	Quarters Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
Options	162,373	40,396	163,303	45,777
Warrants	—	44,221	23,040	45,359
Convertible preferred stock	62	420,395	62	510,830
Total	162,435	505,012	186,405	601,966

4. Inventories

Inventories consist of the following: 

	September 30, 2020		December 31, 2019
Purchased components	$	690,643	$	720,209
Finished goods	359,650		443,505
	$	1,050,293	$	1,163,714

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5. Accrued Expenses and Compensation

Accrued expenses and compensation consist of the following:

	September 30, 2020		December 31, 2019
Technology fees	$	450,000	$	450,000
Professional services	291,000		454,000
Compensation	109,896		62,322
Advertising and promotion	6,000		68,000
Warranty	62,200		75,300
Other	92,132		333,952
	$	1,011,228	$	1,443,574

6. Leases

Operating Leases

The Company's lease on its Woburn, Massachusetts facilities (the “Woburn Lease”) extends through September 2025 with a monthly base rent of $13,846 and a 5-year extension option. The Company's lease on its Waltham, Massachusetts facilities, now inactive and offered for sublet, extends through February 2022 with an average monthly base rent of $41,074 and a 5-year extension option. At September 30, 2020, an impairment reserve of $400,000 reduced the right of use asset for Waltham idle facility costs. The impairment reserve was increased during the nine months ended September 30, 2020 by a charge of $280,000 recorded within the Company's Statement of Operations as follows: $98,000 within research and development, $56,000 within sales and marketing, and $126,000 within general and administrative.

Future minimum lease payments under non-cancellable operating leases as of September 30, 2020 are as follows:

2020	160,797
2021	653,164
2022	247,347
2023	165,785
2024	165,785
2025	117,431
Total minimum lease payments	$	1,510,309
Weighted-average discount rate, 14.7%	$	331,627
Lease obligation, current portion	596,779
Lease obligation, net of current portion	581,903
	$	1,510,309

Total recorded rent expense was $166,905 and $166,025, for the quarters ended September 30, 2020 and 2019, respectively. Total recorded rent expense was $500,713 and $498,073, for the nine months ended September 30, 2020 and 2019, respectively. The Company records rent expense on its facility leases on a straight-line basis over the lease term. Weighted average remaining operating lease term was 3.1 years as of September 30, 2020.

7. Business Restructuring

In the second quarter of 2019, the Company was restructured to reduce operating costs and improve efficiency. Operations were consolidated in a single location, headcount was reduced, and excess inventory was written down to net realizable value. Total 2019 restructuring charges were $2.5 million. During 2020 revised estimates of idle facility costs at the Company's Waltham location resulted in impairment charges in the quarter and nine months ended September 30, 2020 of $76,000 and $280,000, respectively. The impairment reserve against the right to use asset was $400,000 at September 30, 2020.

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The obligations relating to the business restructuring outstanding as of September 30, 2020 are presented below.

	September 30, 2020
Severance obligations:
Provision	$	224,773
Amounts paid out	(224,773		)
Total	—
Relocation costs:
Provision	100,000
Amounts paid out	(100,000		)
Total	—
Impairment charge for idle facility	680,000
Amounts paid out	(280,000		)
Total	400,000
Balance - September 30, 2020	$	400,000

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 for the periods presented and indicates the fair value hierarchy of the valuation techniques it utilized to determine such fair value. In general, fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities. Fair values determined by Level 2 inputs utilize data points that are observable such as quoted prices, interest rates, and yield curves. Fair values determined by Level 3 inputs are unobservable data points for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. All Company assets and liabilities measured at fair value utilize Level 1 inputs.

			Fair Value Measurements at September 30, 2020 Using
	September 30, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	2,159,475	$	2,159,475	$	—	$	—
Total	$	2,159,475	$	2,159,475	$	—	$	—

			Fair Value Measurements at December 31, 2019 Using
	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	698,807	$	698,807	$	—	$	—
Total	$	698,807	$	698,807	$	—	$	—

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9. Credit Facility and Debt

The Company's Loan and Security Agreement (the “Credit Facility”) with a bank expired April 30, 2020 and was not renewed. The Credit Facility had previously supported letters of credit in the amount of $226,731 issued in favor of the Company's landlords. These letters of credit remain outstanding and are secured by the Company's cash balances.

In April 2020 the Company received a loan of $773,200 under the Paycheck Protection Program of the Coronavirus Aid, Relief, and Economic Security Act and fully repaid the loan in May 2020.

10. Stockholders’ Equity

Preferred stock and convertible preferred stock consist of the following: 

	September 30, 2020		December 31, 2019
Preferred stock, $0.001 par value; 5,000,000 shares authorized at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series B convertible preferred stock, $0.001 par value; 147,000 shares designated at September 30, 2020 and December 31, 2019; 200 shares issued and outstanding at September 30, 2020 and December 31, 2019	$	1	$	1
Series D convertible preferred stock, $0.001 par value; 21,300 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series E convertible preferred stock, $0.001 par value; 7,000 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series F convertible preferred stock, $0.001 par value; 10,621 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—

2020 equity activity

In February 2020, the Company entered into an At Market Issuance Sales Agreement (the "Agreement") with respect to an at-the-market offering program ("ATM program"), under which the Company may offer and sell, from time to time at its sole discretion, shares of its common stock, par value $0.0001 per share (the "Common Stock"), having an aggregate offering price of up to $4,482,000 (the "Placement Shares"). The issuance and sale of the Placement Shares by the Company under the Agreement will be made pursuant to the Company's effective "shelf" registration statement on Form S-3. During the nine months ended September 30, 2020, 2,348,619 shares of common stock were issued pursuant to the Agreement for net proceeds of $4,143,431.

In March 2020, the Company issued 31,000 shares of fully vested common stock with a value of $43,751 pursuant to a Separation Agreement between the Company and an employee. The shares issued reflected the $1.41 closing price of the Company's common stock as reported on the Nasdaq Capital Market on March 11, 2020.

In June 2020, the Company issued 4,364 shares of fully vested common stock with a value of $7,606 pursuant to the Company's 2010 Employee Stock Purchase Plan.

2019 equity activity

During the nine months ended September 30, 2019, 2,998.2 shares of the Company's Series D Preferred Stock were converted into a total of 114,000 shares of Common Stock and 3,260.70 shares of the Company's Series E Preferred Stock were converted into a total of 123,981 shares of Common Stock.

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11. Reverse Stock Split

On November 18, 2019, the Company effected a 1-for-10 reverse stock split of its Common Stock, or the Reverse Stock Split. The par value and other terms of the common stock were not affected by the Reverse Stock Split. Share, per share, and stock option amounts for all periods presented within the financial statements contained in the Quarterly Report on Form 10-Q, including the December 31, 2019 Balance Sheet amounts for Common Stock and additional paid-in capital, have been retroactively adjusted to reflect the Reverse Stock Split.

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12. Commitments and Contingencies

The previously reported investigation by the Federal Trade Commission (the “Commission”) regarding Quell® advertising was settled in March 2020. The Company did not admit to any of the Commission's allegations, agreed to certain modifications of Quell advertising claims, and pledged to pay to the Commission future commercial milestone payments, if and when received, pursuant to a collaboration agreement with a third party.

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion of our financial condition and results of operations in conjunction with our financial statements and the accompanying notes to those financial statements included elsewhere in this Quarterly Report on Form 10-Q. This discussion contains forward-looking statements that involve risks and uncertainties. For a description of factors that may cause our actual results to differ materially from those anticipated in these forward-looking statements, please refer to the below section of this Quarterly Report on Form 10-Q titled “Cautionary Note Regarding Forward-Looking Statements.” Unless the context otherwise requires, all references to “we”, “us”, the “Company”, or “NeuroMetrix” in this Quarterly Report on Form 10-Q refer to NeuroMetrix, Inc.

Overview

NeuroMetrix develops and commercializes health care products that utilize non-invasive neurostimulation and digital medicine. Our core expertise in biomedical engineering has been refined over two decades of designing, building and marketing medical devices that stimulate nerves and analyze nerve response for diagnostic and therapeutic purposes. We created the market for point-of-care nerve testing and were first to market with sophisticated wearable technology for symptomatic relief of chronic pain. Our business is fully integrated with in-house capabilities spanning research and development, manufacturing, regulatory affairs and compliance, sales and marketing, product fulfillment and customer support. We derive revenues from the sale of medical devices and after-market consumable products and accessories. Our products are sold in the United States and select overseas markets. They are cleared by the U.S. Food and Drug Administration (FDA) and regulators in foreign jurisdictions where appropriate. We have two principal product lines:

•Point-of-care neuropathy diagnostic tests

•Wearable neurostimulation devices

Diabetes is a worldwide epidemic with an estimated affected population of over 400 million people. Within the United States, there are over 30 million people with diabetes and another 80 million people with pre-diabetes. The annual direct cost of treating diabetes in the United States exceeds $100 billion. Although there are dangerous acute manifestations of diabetes, the primary burden of the disease is in its long-term complications, which include cardiovascular disease, nerve disease and resulting conditions such as foot ulcers which may require amputation, eye disease leading to blindness, and kidney failure. The most common long-term complication of diabetes, affecting over 50% of the diabetic population, is nerve disease or neuropathy. Diabetic peripheral neuropathy (DPN) is the primary trigger for diabetic foot ulcers which may progress to the point of requiring amputation. People with diabetes have a 15-25% lifetime risk of foot ulcers and approximately 15% of foot ulcers lead to amputation. Foot ulcers are the most expensive complication of diabetes with a typical cost of $5,000 to $50,000 per episode. In addition, between 16% and 26% of people with diabetes suffer from chronic pain in the feet and lower legs.

Early detection of DPN is important because there are no treatment options once the nerves have degenerated. Today’s diagnostic methods for DPN range from a simple monofilament test for lack of sensory perception in the feet to a nerve conduction study performed by a specialist. Our DPNCheck technology provides a rapid, low cost, quantitative test for peripheral nerve disease, including DPN. It addresses an important medical need and is particularly effective in screening large populations. DPNCheck has been validated in numerous clinical studies. We are investing R&D resources in the next generation technology to enhance the user experience, improve manufacturing, and restrict the potential use of non-compliant biosensors. Release of the new DPNCheck, forecast for the second half of 2021, may also provide the opportunity for customer upgrades and expansion of product margins.

Chronic pain is a significant public health problem. It is defined by the National Institutes of Health (NIH) as pain lasting more than 12 weeks. This contrasts with acute pain, which is a normal bodily response to injury or trauma. Chronic pain conditions include low back pain, arthritis, fibromyalgia, neuropathic pain, cancer pain and many others. Chronic pain may be triggered by an injury or there may be an ongoing cause such as disease or illness. There may also be no clear cause. Pain signals continue to be transmitted in the nervous system over extended periods of time often leading to other health problems.

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These can include fatigue, sleep disturbance, decreased appetite, and mood changes, which cause difficulty in carrying out important activities and can contribute to disability and despair. In general, chronic pain cannot be cured. Treatment of chronic pain is focused on reducing pain and improving function. The goal is effective pain management.

Chronic pain affects over 100 million adults in the United States and more than 1.5 billion people worldwide. The estimated incremental impact of chronic pain on health care costs in the United States is over $250 billion per year and lost productivity is estimated to exceed $300 billion per year. The most common approach to chronic pain management is pain medication. This includes over-the-counter (OTC) internal and external analgesics as well as prescription pain medications, both non-opioid and opioid. The approach to treatment is individualized, drug combinations may be employed, and the results are often inadequate. Side effects, including the potential for addiction, are substantial. Increasingly, restrictions are being imposed on access to prescription opioids. Reflecting the complexity of chronic pain and the difficulty in treating it, we believe that inadequate relief leads 25% to 50% of pain sufferers to seek alternatives to prescription pain medications. These alternatives include nutraceuticals, acupuncture, chiropractic care, non-prescription analgesics, electrical stimulators, braces, sleeves, pads and other items. In total, these pain relief products and services account for approximately $20 billion in annual out-of-pocket spending in the United States.

Nerve stimulation is a long-established category of treatment for chronic pain. This treatment approach is available through implantable spinal cord stimulation requiring surgery with its attendant risks. Non-invasive approaches involving transcutaneous electrical nerve stimulation (TENS) have achieved limited efficacy in practice due to device limitations, ineffective dosing and low patient adherence.

Quell is our wearable TENS device for knee, foot and leg pain that is available over-the-counter and is sold primarily via our e-commerce platform, www.QuellRelief.com. It can be used during the day while active and at night while sleeping. Users can personalize and manage therapy discreetly via the mobile app for iPhone and Android smartphones. Quell is also a pain management solution with pain, activity, and gait tracking. It is covered by 15 U.S. patents and is currently employed in two clinical studies funded by the National Institutes of Health (NIH) addressing fibromyalgia and chemotherapy induced peripheral neuropathy (CIPN). Over the past year we restructured the Quell commercial model to achieve a positive net operating contribution after direct costs. As we gain confidence with our core commercial model and demonstrate our capability to promote Quell in a cost-efficient manner, our focus will shift to expanding the Quell user group. This may involve disease-specific application of this technology in areas related to our current clinical study program.

Both DPNCheck and Quell are sophisticated neurotechnology products that are unique in their markets. Our goal for both products is the same: to optimize market positioning and financial performance for the benefit of our shareholders. We also continue to supply consumables for ADVANCE, our legacy nerve conduction testing system.

Results of Operations

Comparison of Quarters Ended September 30, 2020 and 2019

Revenues

	Quarters Ended September 30,
	2020		2019		Change			% Change
	(in thousands)
Revenues	$	2,036.2	$	2,088.0	$	(51.8	)	(2.5	)%

Revenues include sales of Quell, DPNCheck and ADVANCE to physician offices, clinics, hospitals, other healthcare providers and insurers, as well as domestic and international distributors. Revenues comprise sales of medical devices as well as aftermarket electrodes and other supplies. Revenues were $2.0 million during the third quarters of 2020 and 2019. Revenues during the quarter ending September 30, 2020 were adversely affected by the economic effects of the COVID-19 pandemic. A recovery trend in customer orders and shipment volume was observed beginning late in the second quarter which continued during the third quarter of 2020. This trend particularly benefited DPNCheck sales into U.S. Medicare Advantage accounts.

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Cost of Revenues and Gross Profit

	Quarters Ended September 30,
	2020		2019		Change			% Change
	(in thousands)
Cost of revenues	$	537.6	$	914.3	$	(376.7	)	(41.2	)%
Gross profit	$	1,498.6	$	1,173.7	$	324.9		27.7	%

Gross margin was 73.6% in the third quarter of 2020 versus 56.2% in the same period in the prior year. The margin improvement in 2020 was due to improved profitability of Quell sales and increased weighting of DPNCheck within total revenue.

Operating Expenses

	Quarters Ended September 30
	2020		2019		Change			% Change
	(in thousands)
Operating expenses:
Research and development	$	652.7	$	475.1	$	177.6		37.4	%
Sales and marketing	340.9		647.7		(306.8		)	(47.4	)%
General and administrative	762.9		1,462.9		(700.0		)	(47.9	)%
Total operating expenses	$	1,756.5	$	2,585.7	$	(829.2	)	(32.1	)%

Research and Development

Research and development expense in the third quarter of 2020 increased by 37.4% from the same period in the prior year due to increased spending of $144,000 on consulting costs, and $74,000 on clinical costs and fees. Personnel related costs decreased by $28,000 and facility and supply costs decreased by $10,000.

Sales and Marketing

Sales and marketing expense in the third quarter of 2020 decreased by 47.4% from the same period in the prior year due to a $141,000 reduction in advertising spending and a $26,000 reduction in consulting spending. In addition, personnel related costs decreased by $130,000 and facility and supply costs decreased by $10,000.

General and Administrative

General and administrative expense in the third quarter of 2020 decreased by 47.9% from the same period in the prior year due to a reduction of $85,000 in personnel related costs, a reduction of $393,000 in outside professional service costs, primarily legal, a decrease of $165,000 in consulting spending and a reduction of facility and supply costs of $57,000.

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Other income

	Quarters Ended September 30,
	2020		2019		Change			% Change
	(in thousands)
Other income	$	0.8	$	7.5	$	(6.7	)	(89.3	)%

Other income primarily includes interest income.

Comparison of Nine Months Ended September 30, 2020 and 2019

Revenues

	Nine Months Ended September 30,
	2020		2019		Change			% Change
	(in thousands)
Revenues	$	5,568.2	$	7,565.6	$	(1,997.4	)	(26.4	)%

Revenues include sales of Quell, DPNCheck and ADVANCE to physician offices, clinics, hospitals, other healthcare providers and insurers, as well as domestic and international distributors. Revenues comprise sales of medical devices as well as aftermarket electrodes and other supplies. Revenues were $5.6 million and $7.6 million during the nine months ended September 30, 2020 and 2019, respectively. Revenues during the nine month period ended September 30, 2020 were adversely affected by the economic effects of the COVID-19 pandemic. A recovery trend in customer orders and shipment volume was observed beginning late in the second quarter which continued during the third quarter of 2020. This trend particularly benefited DPNCheck sales in U.S. Medicare Advantage accounts.

Cost of Revenues and Gross Profit

	Nine Months Ended September 30,
	2020		2019		Change			% Change
	(in thousands)
Cost of revenues	$	1,652.9	$	6,382.3	$	(4,729.4	)	(74.1	)%
Gross profit	$	3,915.4	$	1,183.3	$	2,732.1		230.9	%

Our gross profit margin was 70.3% in the nine months ended September 30, 2020 versus 15.6% in the same period in the prior year. The unusually low gross margin in 2019 reflected an inventory charge of $2.6 million as part of restructuring the Quell business. Excluding this charge, the gross margin rate in 2019 was 50.0%. The margin improvement in 2020 was due to improved profitability of Quell sales and higher weighting of DPNCheck business within total revenue.

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Operating Expenses

	Nine Months Ended September 30,
	2020		2019		Change			% Change
	(in thousands)
Operating expenses:
Research and development	$	1,846.6	$	2,365.1	(518.5		)	(21.9	)%
Sales and marketing	1,144.4		4,047.0		(2,902.6		)	(71.7	)%
General and administrative	2,693.1		4,646.9		(1,953.8		)	(42.0	)%
Total operating expenses	$	5,684.1	$	11,059.0	$	(5,374.9	)	(48.6	)%

Research and Development

Research and development expense in the nine months ended September 30, 2020 decreased by 21.9% from the same period in the prior year due to reduced personnel related costs of $676,000, a reduction in professional fees of $105,000 and a decrease of facility and supply costs of $105,000. The reductions were offset with increased consulting and clinical spending of $378,000.

Sales and Marketing

Sales and marketing expense in the nine months ended September 30, 2020 decreased by 71.7% from the same period in the prior year reflecting a reduction in advertising and promotion spending of $1.4 million. In addition, consulting costs decreased by $751,000, personnel related costs decreased by $621,000 and facility and supply costs decreased by $130,000.

General and Administrative

General and administrative expense in the nine months ended September 30, 2020 decreased by 42.0% from the same period in the prior year due to a reduction of $156,000 in personnel related costs, a reduction of $1.5 million in professional service costs, primarily legal, and a decrease in facility and supply costs of $462,000. The reductions were partially offset with increased insurance costs of $238,000.

Collaboration income

	Nine Months Ended September 30,
	2020		2019		Change			% Change
	(in thousands)
Collaboration income	$	—	$	7,116.7	$	(7,116.7	)	(100.0	)%

Collaboration income in 2019 included development milestones funded by GlaxoSmithKline (GSK) under a Quell collaboration agreement. Total development milestones received under the GSK collaboration since initiation in early 2018 were approximately $20.5 million.

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Other income

	Nine Months Ended September 30,
	2020		2019		Change			% Change
	(in thousands)
Other income	$	2.3	$	42.8	$	(40.5	)	(94.6	)%

Other income primarily includes interest income.

Liquidity and Capital Resources

Our principal source of liquidity is cash and cash equivalents of $4.9 million at September 30, 2020. Funding for our operations largely depends on revenues from the sale of our commercial products. A low level of market interest in our products, a decline in our consumables sales, unanticipated increases in our operating costs, and the adverse effects of the COVID-19 pandemic could have an adverse effect on our liquidity and cash.

	September 30, 2020		December 31, 2019		Change		% Change
	(in thousands)
Cash and cash equivalents	$	4,929.2	$	3,126.2	$	1,803	57.7	%

During the nine months endedSeptember 30, 2020, our cash and cash equivalents increased by $1.8 million reflecting net proceeds of $4.1 million from common stock sales under our ATM program partially offset by $2.3 million in cash used in operating activities.

In managing working capital, we focus on two important financial measurements:

	Quarters Ended September 30,		Year Ended December 31,
	2020	2019	2019
Days sales outstanding (days)	23	27	27
Inventory turnover rate (times per year)	1.9	2.3	3.5

Days sales outstanding (DSO) reflect customer payment terms which vary from payment on order to 60 days from invoice date. DSO improved to 23 days during the quarter ended September 30, 2020 versus 27 days in the prior year period. This was attributable to improved collection rates on receivables with payment terms.

The inventory turnover rate decelerated to 1.9 turns in the third quarter of 2020 versus 2.3 turns in the prior year period. This reflected lower sales on approximately constant inventory levels in the comparable periods.

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The following sets forth information relating to our sources and uses of our cash:

	Nine Months Ended September 30,
	2020			2019
	(in thousands)
Net cash used in operating activities (excluding collaboration income)	$	(2,348.1	)	$	(6,582.4	)
Net cash provided by collaboration income	—			4,760.1
Net cash used in operating activities	(2,348.1		)	(3,560.1		)
Net cash used in investing activities	—			(41.2		)
Net cash provided by financing activities	4,151.0			7.5
Net cash (used) provided	$	1,802.9		$	(3,593.8	)

During the nine months ended September 30, 2020, our operating activities consumed $2.3 million of cash offset by $4.1 million in net proceeds from sales of common stock.

We have reported recurring losses from operations and negative cash flows from operating activities. These factors raise substantial doubt about our ability to continue as a going concern for the one-year period from the date of issuance of these financial statements. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. We held cash and cash equivalents of $4.9 million as of September 30, 2020. We believe that these resources and the cash to be generated from future product sales will be sufficient to meet our projected operating requirements into the fourth quarter of 2021. Accordingly, we may need to raise additional funds to support our operating and capital needs in the fourth quarter of 2021 and beyond.

We continue to face challenges and uncertainties. Among these uncertainties is the future effect on the Company's business of the COVID-19 pandemic which, from late in the first quarter of 2020 through the third quarter of 2020, depressed sales of the Company's products. As a result, our available capital resources may be consumed more rapidly than currently expected due to (a) decreases in sales of our products, including decreases in customer orders related to the COVID-19 pandemic, and the uncertainty of future revenues from new products; (b) the effect of the COVID-19 pandemic on our ability to obtain parts and materials from our suppliers while continuing to staff critical production and fulfillment functions, (c) changes we may make to the business that affect ongoing operating expenses; (d) changes we may make in our business strategy; (e) regulatory developments affecting our existing products; (f) changes we may make in our research and development spending plans; and (g) other items affecting our forecasted level of expenditures and use of cash resources. We may attempt to obtain additional funding through public or private financing, collaborative arrangements with strategic partners, or through additional credit lines or other debt financing sources. However, we may not be able to secure such funding in a timely manner or on favorable terms, if at all.

We maintain a shelf registration statement on Form S-3 with the SEC covering shares of our common stock and other securities for sale, giving us the opportunity to raise funding when needed or otherwise considered appropriate at prices and on terms to be determined at the time of any such offerings. Pursuant to the instructions to Form S-3, we have the ability to sell shares under the shelf registration statement, during any 12-month period, in an amount less than or equal to one-third of the aggregate market value of our common stock held by non-affiliates. If we raise additional funds by issuing equity or debt securities, either through the sale of securities pursuant to a registration statement or by other means, our existing stockholders may experience dilution, and the new equity or debt securities may have rights, preferences and privileges senior to those of our existing stockholders. If we raise additional funds through collaboration, licensing or other similar arrangements, it may be necessary to relinquish valuable rights to our potential products or proprietary technologies, or grant licenses on terms that are not favorable to us. Without additional funds, we may be forced to delay, scale back or eliminate some of our sales and marketing efforts, research and development activities, or other operations and potentially delay product development in an effort to provide sufficient funds to continue our operations. If any of these events occurs, our ability to achieve our development and commercialization goals would be adversely affected. 

Off-Balance Sheet Arrangements, Contractual Obligation and Contingent Liabilities and Commitments

As of September 30, 2020, we did not have any off-balance sheet financing arrangements.

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Recent Accounting Pronouncements

In February 2016, the FASB issued Accounting Standards Update No. 2016-02, Leases (Topic 842) (“ASU 2016-02”). ASU 2016-02 required that lessees recognize virtually all of their leases on the balance sheet, by recording a right-of-use asset and lease liability. We adopted ASU 2016-02, using the modified retrospective method, upon its effective date of January 1, 2019. The impact of adoption was an increase to long-term assets and total liabilities of approximately $1.9 million as of January 1, 2019.

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Cautionary Note Regarding Forward-Looking Statements

The statements contained in this Quarterly Report on Form 10-Q, including under the section titled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and other sections of this Quarterly Report, include forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, including, without limitation, statements regarding our or our management’s expectations, hopes, beliefs, intentions or strategies regarding the future, such as our estimates regarding anticipated operating losses, future revenues and projected expenses, the effect of the COVID-19 pandemic on our operating capabilities, our future liquidity and our expectations regarding our needs for and ability to raise additional capital; our ability to manage our expenses effectively and raise the funds needed to continue our business; our belief that there are unmet needs for the management of chronic pain and in the diagnosis and treatment of diabetic neuropathy; our expectations surrounding Quell and DPNCheck; our expected timing and our plans to develop and commercialize our products; our ability to meet our proposed timelines for the commercial availability of our products; our ability to obtain and maintain regulatory approval of our existing products and any future products we may develop; regulatory and legislative developments in the United States and foreign countries; the performance of our third-party manufacturers; our ability to obtain and maintain intellectual property protection for our products; the successful development of our sales and marketing capabilities; the size and growth of the potential markets for our products and our ability to serve those markets; our estimate of our customer returns of our products; the rate and degree of market acceptance of any future products; our reliance on key scientific management or personnel; the payment and reimbursement methods used by private or government third party payers; and other factors discussed elsewhere in this Quarterly Report on Form 10-Q. The words “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “plan” and similar expressions may identify forward-looking statements, but the absence of these words does not mean that a statement is not forward-looking. The forward-looking statements contained in this quarterly report are based on our current expectations and beliefs concerning future developments and their potential effects on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those factors described in the section titled “Risk Factors” in our Annual Report on Form 10-K. Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary from those projected in these forward-looking statements. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

We do not use derivative financial instruments in our investment portfolio and have no foreign exchange contracts. Our financial instruments consist of cash and cash equivalents. We consider investments that, when purchased, have a remaining maturity of 90 days or less to be cash equivalents. The primary objectives of our investment strategy are to preserve principal, maintain proper liquidity to meet operating needs, and maximize yields. To minimize our exposure to an adverse shift in interest rates, we invest mainly in cash equivalents and short-term investments with a maturity of twelve months or less and maintain an average maturity of twelve months or less. We do not believe that a notional or hypothetical 10% change in interest rate percentages would have a material impact on the fair value of our investment portfolio or our interest income.

Item 4. Controls and Procedures

(a)Evaluation of Disclosure Controls and Procedures. Our principal executive officer and principal financial officer, after evaluating the effectiveness of our disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) as of September 30, 2020, have concluded that, based on such evaluation, our disclosure controls and procedures were effective to ensure that information required to be disclosed by us in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms, and is accumulated and communicated to our management, including our principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

(b)Changes in Internal Controls. There were no changes in our internal control over financial reporting, identified in connection with the evaluation of such internal control that occurred during the quarter ended September 30, 2020 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II – OTHER INFORMATION

Item 1. Legal Proceedings

While we are not currently a party to any material legal proceedings, we could become subject to legal proceedings in the ordinary course of business. We do not expect any such potential items to have a significant impact on our financial position.

Item 1A. Risk Factors

There have been no material changes in the risk factors described in “Item 1A. Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2019 or our Quarterly Report on Form 10-Q for the quarter ended June 30, 2020.

Item 2.   Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3.    Defaults Upon Senior Securities

None. 

Item 4.    Mine Safety Disclosures

Not applicable. 

Item 5.    Other Information

None.

Item 6.    Exhibits

See the Exhibit Index on the page immediately preceding the exhibits for a list of exhibits filed as part of this quarterly report, which Exhibit Index is incorporated herein by this reference.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		NEUROMETRIX, INC.
October 22, 2020	/s/	SHAI N. GOZANI, M.D., PH. D.
		Shai N. Gozani, M.D., Ph. D.
		Chairman, President and Chief Executive Officer
October 22, 2020	/s/	THOMAS T. HIGGINS
		Thomas T. Higgins
		Senior Vice President, Chief Financial Officer and Treasurer

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EXHIBIT INDEX

Exhibit No.	Description
31.1	Certification of Principal Executive Officer Under Rule 13a-14(a) of the Securities Exchange Act of 1934, as amended, and pursuant to Section 302(a) of the Sarbanes-Oxley Act of 2002. Filed herewith.
31.2	Certification of Principal Financial Officer Required Under Rule 13a-14(a) or Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended, and pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. Filed herewith.
32	Certification of Principal Executive Officer and Principal Financial Officer Required Under Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934, as amended, and 18 U.S.C. Section 1350. Furnished herewith.
101	The following materials from the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2020, formatted in XBRL (eXtensible Business Reporting Language): (i) Balance Sheets at September 30, 2020 and December 31, 2019, (ii) Statements of Operations for the quarter and nine months ended September 30, 2020 and 2019, (iii) Statements of Changes in Stockholders' Equity for the nine months ended September 30, 2020 and 2019, (iv) Statements of Cash Flows for the nine months ended September 30, 2020 and 2019, and (v) Notes to Financial Statements.

EX-31.1

EXHIBIT 31.1

CERTIFICATION

I, Shai N. Gozani, M.D., Ph.D., certify that:

1.	I have reviewed this Quarterly Report on Form 10-Q of NeuroMetrix, Inc.;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and
5.	The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):
	a)	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and
	b)	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	October 22, 2020	/s/ SHAI N. GOZANI, M.D., PH. D.
		Shai N. Gozani, M.D., Ph.D.
		Chairman, President and Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION

I, Thomas T. Higgins, certify that:
1.	I have reviewed this Quarterly Report on Form 10-Q of NeuroMetrix, Inc.;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	a)	designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	b)	designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	c)	evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	d)	disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and
5.	The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):
	a)	all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and
	b)	any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:	October 22, 2020	/s/ THOMAS T. HIGGINS
		Thomas T. Higgins
		Senior Vice President, Chief Financial Officer and Treasurer

EX-32

EXHIBIT 32

CERTIFICATION

Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), each of the undersigned officers of NeuroMetrix, Inc., a Delaware corporation (the "Company"), does hereby certify, to such officer's knowledge, that:

The Quarterly Report for the quarter ended September 30, 2020 (the "Form 10-Q") of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended, and the information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ SHAI N. GOZANI, M.D., PH. D.

Shai N. Gozani, M.D., Ph.D.

Chairman, President and Chief Executive Officer

/s/ THOMAS T. HIGGINS

Thomas T. Higgins

Senior Vice President, Chief Financial Officer and Treasurer

October 22, 2020

This certification is being furnished and not filed, and shall not be incorporated into any document for any purpose, under the Securities Exchange Act of 1934 or the Securities Act of 1933.

XML

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2020	Oct. 21, 2020
Document And Entity Information [Abstract]
Substantial Doubt about Going Concern, within One Year [true false]	true
Entity Registrant Name	NeuroMetrix, Inc.
Entity File Number	001-33351
Entity Tax Identification Number	04-3308180
Entity Address, Address Line One	4B Gill Street
Entity Address, City or Town	Woburn
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01801
City Area Code	781
Local Phone Number	890-9989
Entity Central Index Key	0001289850
Trading Symbol	NURO
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Document Type	10-Q
Document Period End Date	Sep. 30, 2020
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false
Document Quarterly Report	true
Document Transition Report	false
Entity Incorporation, State or Country Code	DE
Entity Interactive Data Current	Yes
Security Exchange Name	NASDAQ
Title of 12(b) Security	Common Stock, $0.0001 par value per share
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		3,784,657

XML

Balance Sheets - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 4,929,175	$ 3,126,206
Accounts receivable, net	633,146	298,967
Inventories	1,050,293	1,163,714
Collaborator Payments Receivable	0	189,008
Prepaid expenses and other current assets	677,526	652,919
Total current assets	7,290,140	5,430,814
Fixed assets, net	205,676	273,448
Operating Lease, Right-of-Use Asset	815,558	1,159,774
Other long-term assets	28,664	29,650
Total assets	8,340,038	6,893,686
Current liabilities:
Accounts payable	192,356	725,658
Accrued expenses and compensation	1,011,228	1,443,574
Accrued Sales Return provisions	586,000	689,000
Operating Lease, Liability, Current	596,779	588,546
Total current liabilities	2,386,363	3,446,778
Operating Lease, Liability, Noncurrent	581,903	916,674
Total liabilities	2,968,266	4,363,452
Commitments and contingencies
Stockholders’ equity:
Common stock, $0.0001 par value; 25,000,000 shares authorized at June 30, 2020 and December 31, 2019; 3,784,657 and 1,400,674 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	378	140
Additional paid-in capital	201,927,426	197,319,698
Accumulated deficit	(196,556,033)	(194,789,605)
Total stockholders’ equity	5,371,772	2,530,234
Total liabilities and stockholders’ equity	8,340,038	6,893,686
Non-Convertible Preferred Stock
Stockholders’ equity:
Preferred stock	0	0
Convertible preferred stock
Stockholders’ equity:
Preferred stock	1	1
Total stockholders’ equity	$ 1	$ 1

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Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Common Stock, Shares, Outstanding	3,784,657	1,400,674
Common Stock, Shares, Issued	3,784,657	1,400,674
Common Stock, Shares Authorized	25,000,000	25,000,000
Common Stock, Par or Stated Value Per Share	$ 0.0001	$ 0.0001

XML

Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue from Contract with Customer, Including Assessed Tax	$ 2,036,228	$ 2,088,001	$ 5,568,243	$ 7,565,619
Other Nonoperating Income	774	7,464	2,323	42,797
Nonoperating Income (Expense)	774	7,464	2,323	7,159,464
Net loss	(257,113)	(1,404,600)	(1,766,428)	(2,716,284)
Loss from operations	(257,887)	(1,412,064)	(1,768,751)	(9,875,748)
Collaboration Income	$ 0	$ 0	$ 0	$ 7,116,667
Net income (loss) applicable to common stockholders:
Earnings Per Share, Basic and Diluted	$ (0.07)	$ (1.44)	$ (0.64)	$ (3.06)
Weighted Average Number of Shares Outstanding, Basic	3,784,657	978,175	2,755,903	886,609
Operating expenses:
Research and development	$ 652,671	$ 475,137	$ 1,846,569	$ 2,365,139
Sales and marketing	340,927	647,719	1,144,389	4,046,956
General and administrative	762,903	1,462,887	2,693,146	4,646,932
Total operating expenses	1,756,501	2,585,743	5,684,104	11,059,027
Gross profit (loss)	1,498,614	1,173,679	3,915,353	1,183,279
Cost of revenues	$ 537,614	$ 914,322	$ 1,652,890	$ 6,382,340

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Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended	9 Months Ended		21 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Cash Flows [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		$ (1,766,428)	$ (2,716,284)
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation		67,772	98,166
Stock-based compensation		413,178	184,486
CompensationObligationSettlement		43,751	0
IdleFacilityImpairmentCharge	$ 76,000	280,000	0	$ 680,000
Inventory Write-down		0	2,595,884
Changes in operating assets and liabilities:
Accounts receivable		(334,179)	558,968
Inventories		113,421	(357,673)
Increase (Decrease) In Collaboration Receivable		189,008	(1,174,092)
Prepaid expenses and other current and long-term assets		(23,621)	189,092
Accounts payable		(533,302)	(659,538)
Accrued expenses and compensation		(694,668)	115,752
Increase (Decrease) in Accrued Product Returns		(103,000)	(438,352)
Increase (Decrease) in Deferred Collaboration Income		0	(1,956,522)
Net Cash Provided by (Used in) Operating Activities		(2,348,068)	(3,560,113)
Cash flows from investing activities:
Purchases of fixed assets		0	(41,177)
Net Cash Provided by (Used in) Investing Activities		0	(41,177)
Cash flows from financing activities:
Net proceeds from issuance of stock and warrants		4,151,037	7,497
Proceeds from Issuance of Debt		773,200	0
Repayments of Debt		(773,200)	0
Net Cash Provided by (Used in) Financing Activities		4,151,037	7,497
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect		1,802,969	(3,593,793)
Cash and cash equivalents, end of period	4,929,175	4,929,175		4,929,175
Supplemental disclosure of cash flow information:
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 4,929,175	4,929,175	3,186,636	$ 4,929,175	$ 3,126,206	$ 6,780,429
Stock Issuance Settle Incentive Compensation Obligation		$ 43,751	$ 0

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Equity Rollforward Statement - USD ($)	Total	Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]
Stockholders' Equity Attributable to Parent	$ 6,097,811	$ 18	$ 74	$ 197,114,310	$ (191,016,591)
Shares, Outstanding		17,513.63	738,029.00
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	44,093			44,093
Conversion of Stock, Shares Converted		(2,445.90)
Conversion of Stock, Amount Converted		$ (3)		(6)
Stock Issued During Period, Shares, Conversion of Convertible Securities			(93,000.00)
Stock Issued During Period, Value, Conversion of Convertible Securities			$ (9)
Net Income (Loss) Attributable to Parent	2,050,507				2,050,507
Net Income (Loss) Attributable to Parent	(2,716,284)
Stockholders' Equity Attributable to Parent	8,192,411	$ 15	$ 83	197,158,397	(188,966,084)
Shares, Outstanding		15,067.73	831,029.00
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	19,933			19,933
Conversion of Stock, Shares Converted		(3,813.00)
Conversion of Stock, Amount Converted		$ (4)		(11)
Stock Issued During Period, Shares, Conversion of Convertible Securities			(144,981.00)
Stock Issued During Period, Value, Conversion of Convertible Securities			$ (15)
Stock Issued During Period, Shares, Employee Stock Purchase Plans			2,148
Stock Issued During Period, Value, Employee Stock Purchase Plan	7,497		$ 1	7,496
Net Income (Loss) Attributable to Parent	(3,362,191)				(3,362,191)
Stockholders' Equity Attributable to Parent	4,857,650	$ 11	$ 99	197,185,815	(192,328,275)
Shares, Outstanding		11,254.73	978,158.00
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	120,460			120,460
Net Income (Loss) Attributable to Parent	(1,404,600)				(1,404,600)
Stockholders' Equity Attributable to Parent	3,573,510	$ 11	$ 99	197,306,275	(193,732,875)
Shares, Outstanding		11,254.73	978,158.00
Stockholders' Equity Attributable to Parent	2,530,234	$ 1	$ 140	197,319,698	(194,789,605)
Shares, Outstanding		200.00	1,400,674.00
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	144,047			144,047
Stock Issued During Period, Shares, New Issues			256,078
Stock Issued During Period, Value, New Issues	453,457		$ 25	453,432
Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture			31,000
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture	43,751		$ 3	43,748
Net Income (Loss) Attributable to Parent	(657,371)				(657,371)
Net Income (Loss) Attributable to Parent	(1,766,428)
Stockholders' Equity Attributable to Parent	2,514,118	$ 1	$ 168	197,960,925	(195,446,976)
Shares, Outstanding		200.00	1,687,752.00
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	128,862			128,862
Stock Issued During Period, Shares, New Issues			2,092,541
Stock Issued During Period, Value, New Issues	3,689,974		$ 209	3,689,765
Stock Issued During Period, Shares, Employee Stock Purchase Plans			4,364
Stock Issued During Period, Value, Employee Stock Purchase Plan	7,606		$ 1	7,605
Net Income (Loss) Attributable to Parent	(851,944)				(851,944)
Stockholders' Equity Attributable to Parent	5,488,616	$ 1	$ 378	201,787,157	(196,298,920)
Shares, Outstanding		200.00	3,784,657.00
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	140,269			140,269
Net Income (Loss) Attributable to Parent	(257,113)				(257,113)
Stockholders' Equity Attributable to Parent	$ 5,371,772	$ 1	$ 378	$ 201,927,426	$ (196,556,033)
Shares, Outstanding		200.00	3,784,657.00

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Business and Basis of Presentation

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Business and Basis of Presentation

Business and Basis of Presentation

Our Business-An Overview

NeuroMetrix, Inc., or the Company, is a leading developer and manufacturer of diagnostic and therapeutic neurostimulation based medical devices that are used throughout the world. The Company has three FDA cleared commercial products. DPNCheck® is a point-of-care test that is used to evaluate peripheral neuropathies. ADVANCE^™ is a point-of-care device that provides nerve conduction studies as an aid in diagnosing and evaluating patients suspected of having focal or systemic neuropathies. Quell^® 2.0 is a wearable, mobile app enabled, neurostimulation device indicated for symptomatic relief and management of chronic pain and is available OTC. The Company maintains an active, industry-leading R&D program.

The accompanying financial statements have been prepared on a basis which assumes that the Company will continue as a going concern and which contemplates the realization of assets and satisfaction of liabilities and commitments in the normal course of business. The Company has reported recurring losses from operations and negative cash flows from operating activities. At September 30, 2020, the Company had an accumulated deficit of $196.6 million. These factors raise substantial doubt about the Company’s ability to continue as a going concern for the one-year period from the date of issuance of these financial statements. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. The Company held cash and cash equivalents of $4.9 million as of September 30, 2020. The Company believes that these resources and the cash to be generated from future product sales will be sufficient to meet its projected operating requirements into the fourth quarter of 2021. Accordingly, the Company may need to raise additional funds to support its operating and capital needs in the fourth quarter of 2021 and beyond.

The Company continues to face challenges and uncertainties. Among these uncertainties is the future effect on the Company's business of the COVID-19 pandemic which has depressed sales of the Company's products. As a result, the Company’s available capital resources may be consumed more rapidly than currently expected due to (a) decreases in sales of the Company’s products, including decreases in customer orders related to the COVID-19 pandemic, and the uncertainty of future revenues from new products; (b) the effect of the COVID-19 pandemic on the Company's ability to obtain parts and materials from the Company's suppliers while continuing to staff critical production and fulfillment functions; (c) changes the Company may make to the business that affect ongoing operating expenses; (d) changes the Company may make in its business strategy; (e) regulatory developments affecting the Company’s existing products; (f) changes the Company may make in its research and development spending plans; and (g) other items affecting the Company’s forecasted level of expenditures and use of cash resources.

The Company may attempt to obtain additional funding through public or private financing, collaborative arrangements with strategic partners, or through additional credit lines or other debt financing sources to increase the funds available to fund operations. However, the Company may not be able to secure such funding in a timely manner or on favorable terms, if at all. Furthermore, if the Company issues equity or debt securities to raise additional funds, its existing stockholders may experience dilution, and the new equity or debt securities may have rights, preferences and privileges senior to those of the Company’s existing stockholders. If the Company raises additional funds through collaboration, licensing or other similar arrangements, it may be necessary to relinquish valuable rights to its potential products or proprietary technologies, or grant licenses on terms that are not favorable to the Company. Without additional funds, the Company may be forced to delay, scale back or eliminate some of its sales and marketing efforts, research and development activities, or other operations and potentially delay product development in an effort to provide sufficient funds to continue its operations. If any of these events occurs, the Company’s ability to achieve its development and commercialization goals would be adversely affected.

Unaudited Interim Financial Statements

The accompanying unaudited balance sheet as of September 30, 2020, unaudited statements of operations, changes in stockholders' equity for the quarters and nine months ended September 30, 2020 and 2019 and cash flows for the nine months ended September 30, 2020 and 2019 have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. The accompanying balance sheet as of December 31, 2019 has been derived from audited financial statements prepared at that date but does not include all disclosures required by accounting principles generally accepted in the United States of America. In the opinion of management, the financial statements include all normal and recurring adjustments considered necessary for a fair presentation of the Company’s financial position and operating results. Operating results for the nine months endedSeptember 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020 or any other period. These financial statements and notes should be read in conjunction with the financial statements for the year ended December 31, 2019 included in the Company’s Annual Report on Form 10-K, as filed with the Securities and Exchange Commission, or the SEC, on January 28, 2020 (File No. 001-33351), or the Company’s 2019 Form 10-K.

Revenues

Revenues include product sales, net of estimated returns. Revenue is measured as the amount of consideration the Company expects to receive in exchange for product transferred. Revenue is recognized when contractual performance obligations have been satisfied and control of the product has been transferred to the customer. In most cases, the Company has a single product delivery performance obligation. Accrued product returns are estimated based on historical data and evaluation of current information.

Accounts receivable are recorded net of the allowance for doubtful accounts, which represents the Company’s best estimate of credit losses. Allowance for doubtful accounts was $70,000 as of September 30, 2020 and December 31, 2019.

For the quarters ended September 30, 2020 and 2019, three customers accounted for 47% of total revenues and one customer accounted for 19% of total revenues, respectively. For the nine months ended September 30, 2020 and 2019, two customers accounted for 34% and one customer accounted for 20% of total revenues, respectively. Three customers accounted for 54% and two customers accounted for 42% of accounts receivable as of September 30, 2020 and December 31, 2019, respectively.

Collaboration Income

Collaboration Income is recognized within Other Income when contractual performance obligations, outside the ordinary activities of the Company, have been satisfied and control has been transferred to a collaboration partner. Collaboration Income for each performance obligation is based on the fair value of such performance obligation relative to the total fair value of all performance obligations multiplied by the overall transaction price. A deferred collaboration income liability is recorded when payments are received prior to satisfaction of performance obligations. A collaboration receivable is recorded when amounts are owed to the Company under the collaboration agreements and related support services. The Company recognized Collaboration income net of costs, within Other income in the Statement of Operations of zero and $7,116,667, for the nine months ended September 30, 2020 and 2019, respectively.

Stock-based Compensation

Total compensation cost related to non-vested awards not yet recognized at September 30, 2020 was $136,569. The total compensation costs are expected to be recognized over a weighted-average period of 0.3 years.

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during reporting periods. Actual results could differ from those estimates.

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Comprehensive Loss

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Comprehensive Loss

Comprehensive Income (Loss)

For the quarters and nine months ended September 30, 2020 and 2019, the Company had no components of other comprehensive income (loss) other than net income (loss) itself.

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Net Loss Per Common Share

9 Months Ended

Sep. 30, 2020

Earnings Per Share [Abstract]

Net Loss Per Common Share

3. Net Loss Per Common Share

Basic and dilutive net income (loss) per common share were as follows:

	Quarters Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
Net loss applicable to common stockholders	$	(257,113	)	$	(1,404,600	)	$	(1,766,428	)	$	(2,716,284	)
Weighted average number of common shares outstanding, basic	3,784,657			978,175			2,755,903			886,609
Dilutive convertible preferred stock	—			—			—			—
Weighted average number of common shares outstanding, dilutive	3,784,657			978,175			2,755,903			886,609
Net loss per common share applicable to common stockholders, basic and diluted	$	(0.07	)	$	(1.44	)	$	(0.64	)	$	(3.06	)

Shares underlying the following potentially dilutive weighted average number of common stock equivalents were excluded from the calculation of diluted net loss per common share because their effect was anti-dilutive for each of the periods presented: 

	Quarters Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
Options	162,373	40,396	163,303	45,777
Warrants	—	44,221	23,040	45,359
Convertible preferred stock	62	420,395	62	510,830
Total	162,435	505,012	186,405	601,966

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Quarters Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
Net loss applicable to common stockholders	$	(257,113	)	$	(1,404,600	)	$	(1,766,428	)	$	(2,716,284	)
Weighted average number of common shares outstanding, basic	3,784,657			978,175			2,755,903			886,609
Dilutive convertible preferred stock	—			—			—			—
Weighted average number of common shares outstanding, dilutive	3,784,657			978,175			2,755,903			886,609
Net loss per common share applicable to common stockholders, basic and diluted	$	(0.07	)	$	(1.44	)	$	(0.64	)	$	(3.06	)

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Inventories

9 Months Ended

Sep. 30, 2020

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consist of the following: 

	September 30, 2020		December 31, 2019
Purchased components	$	690,643	$	720,209
Finished goods	359,650		443,505
	$	1,050,293	$	1,163,714

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Accrued Expenses

9 Months Ended

Sep. 30, 2020

Payables and Accruals [Abstract]

Accrued Expenses

Accrued Expenses and Compensation

Accrued expenses and compensation consist of the following:

	September 30, 2020		December 31, 2019
Technology fees	$	450,000	$	450,000
Professional services	291,000		454,000
Compensation	109,896		62,322
Advertising and promotion	6,000		68,000
Warranty	62,200		75,300
Other	92,132		333,952
	$	1,011,228	$	1,443,574

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Leases Leases (Notes)

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Lessee, Operating Leases [Text Block]

Operating Leases

The Company's lease on its Woburn, Massachusetts facilities (the “Woburn Lease”) extends through September 2025 with a monthly base rent of $13,846 and a 5-year extension option. The Company's lease on its Waltham, Massachusetts facilities, now inactive and offered for sublet, extends through February 2022 with an average monthly base rent of $41,074 and a 5-year extension option. At September 30, 2020, an impairment reserve of $400,000 reduced the right of use asset for Waltham idle facility costs. The impairment reserve was increased during the nine months ended September 30, 2020 by a charge of $280,000 recorded within the Company's Statement of Operations as follows: $98,000 within research and development, $56,000 within sales and marketing, and $126,000 within general and administrative.

Future minimum lease payments under non-cancellable operating leases as of September 30, 2020 are as follows:

2020	160,797
2021	653,164
2022	247,347
2023	165,785
2024	165,785
2025	117,431
Total minimum lease payments	$	1,510,309
Weighted-average discount rate, 14.7%	$	331,627
Lease obligation, current portion	596,779
Lease obligation, net of current portion	581,903
	$	1,510,309

Total recorded rent expense was $166,905 and $166,025, for the quarters ended September 30, 2020 and 2019, respectively. Total recorded rent expense was $500,713 and $498,073, for the nine months ended September 30, 2020 and 2019, respectively. The Company records rent expense on its facility leases on a straight-line basis over the lease term. Weighted average remaining operating lease term was 3.1 years as of September 30, 2020.

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Restructuring And Related Activities (Notes)

9 Months Ended

Sep. 30, 2020

Restructuring Cost and Reserve [Line Items]

Restructuring and Related Costs [Table Text Block]

The obligations relating to the business restructuring outstanding as of September 30, 2020 are presented below.

	September 30, 2020
Severance obligations:
Provision	$	224,773
Amounts paid out	(224,773		)
Total	—
Relocation costs:
Provision	100,000
Amounts paid out	(100,000		)
Total	—
Impairment charge for idle facility	680,000
Amounts paid out	(280,000		)
Total	400,000
Balance - September 30, 2020	$	400,000

Restructuring and Related Activities Disclosure [Text Block]

Business Restructuring

In the second quarter of 2019, the Company was restructured to reduce operating costs and improve efficiency. Operations were consolidated in a single location, headcount was reduced, and excess inventory was written down to net realizable value. Total 2019 restructuring charges were $2.5 million. During 2020 revised estimates of idle facility costs at the Company's Waltham location resulted in impairment charges in the quarter and nine months ended September 30, 2020 of $76,000 and $280,000, respectively. The impairment reserve against the right to use asset was $400,000 at September 30, 2020.

The obligations relating to the business restructuring outstanding as of September 30, 2020 are presented below.

	September 30, 2020
Severance obligations:
Provision	$	224,773
Amounts paid out	(224,773		)
Total	—
Relocation costs:
Provision	100,000
Amounts paid out	(100,000		)
Total	—
Impairment charge for idle facility	680,000
Amounts paid out	(280,000		)
Total	400,000
Balance - September 30, 2020	$	400,000

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Fair Value Measurements

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Fair Value Measurements

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 for the periods presented and indicates the fair value hierarchy of the valuation techniques it utilized to determine such fair value. In general, fair values determined by Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities. Fair values determined by Level 2 inputs utilize data points that are observable such as quoted prices, interest rates, and yield curves. Fair values determined by Level 3 inputs are unobservable data points for the asset or liability, and include situations where there is little, if any, market activity for the asset or liability. All Company assets and liabilities measured at fair value utilize Level 1 inputs.

			Fair Value Measurements at September 30, 2020 Using
	September 30, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	2,159,475	$	2,159,475	$	—	$	—
Total	$	2,159,475	$	2,159,475	$	—	$	—

			Fair Value Measurements at December 31, 2019 Using
	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	698,807	$	698,807	$	—	$	—
Total	$	698,807	$	698,807	$	—	$	—

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Credit Facility

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Credit Facility

Credit Facility and Debt

The Company's Loan and Security Agreement (the “Credit Facility”) with a bank expired April 30, 2020 and was not renewed. The Credit Facility had previously supported letters of credit in the amount of $226,731 issued in favor of the Company's landlords. These letters of credit remain outstanding and are secured by the Company's cash balances.

In April 2020 the Company received a loan of $773,200 under the Paycheck Protection Program of the Coronavirus Aid, Relief, and Economic Security Act and fully repaid the loan in May 2020.

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Stockholders' Equity

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Preferred stock and convertible preferred stock

Preferred stock and convertible preferred stock consist of the following: 

	September 30, 2020		December 31, 2019
Preferred stock, $0.001 par value; 5,000,000 shares authorized at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series B convertible preferred stock, $0.001 par value; 147,000 shares designated at September 30, 2020 and December 31, 2019; 200 shares issued and outstanding at September 30, 2020 and December 31, 2019	$	1	$	1
Series D convertible preferred stock, $0.001 par value; 21,300 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series E convertible preferred stock, $0.001 par value; 7,000 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series F convertible preferred stock, $0.001 par value; 10,621 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—

Stockholders' Equity

Stockholders’ Equity

Preferred stock and convertible preferred stock consist of the following: 

	September 30, 2020		December 31, 2019
Preferred stock, $0.001 par value; 5,000,000 shares authorized at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series B convertible preferred stock, $0.001 par value; 147,000 shares designated at September 30, 2020 and December 31, 2019; 200 shares issued and outstanding at September 30, 2020 and December 31, 2019	$	1	$	1
Series D convertible preferred stock, $0.001 par value; 21,300 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series E convertible preferred stock, $0.001 par value; 7,000 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series F convertible preferred stock, $0.001 par value; 10,621 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—

2020 equity activity

In February 2020, the Company entered into an At Market Issuance Sales Agreement (the "Agreement") with respect to an at-the-market offering program ("ATM program"), under which the Company may offer and sell, from time to time at its sole discretion, shares of its common stock, par value $0.0001 per share (the "Common Stock"), having an aggregate offering price of up to $4,482,000 (the "Placement Shares"). The issuance and sale of the Placement Shares by the Company under the Agreement will be made pursuant to the Company's effective "shelf" registration statement on Form S-3. During the nine months ended September 30, 2020, 2,348,619 shares of common stock were issued pursuant to the Agreement for net proceeds of $4,143,431.

In March 2020, the Company issued 31,000 shares of fully vested common stock with a value of $43,751 pursuant to a Separation Agreement between the Company and an employee. The shares issued reflected the $1.41 closing price of the Company's common stock as reported on the Nasdaq Capital Market on March 11, 2020.

In June 2020, the Company issued 4,364 shares of fully vested common stock with a value of $7,606 pursuant to the Company's 2010 Employee Stock Purchase Plan.

2019 equity activity

During the nine months ended September 30, 2019, 2,998.2 shares of the Company's Series D Preferred Stock were converted into a total of 114,000 shares of Common Stock and 3,260.70 shares of the Company's Series E Preferred Stock were converted into a total of 123,981 shares of Common Stock.

On November 18, 2019, the Company effected a 1-for-10 reverse stock split of its Common Stock, or the Reverse Stock Split. The par value and other terms of the common stock were not affected by the Reverse Stock Split. Share, per share, and stock option amounts for all periods presented within the financial statements contained in the Quarterly Report on Form 10-Q, including the December 31, 2019 Balance Sheet amounts for Common Stock and additional paid-in capital, have been retroactively adjusted to reflect the Reverse Stock Split.

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Reverse Stock Split

9 Months Ended

Sep. 30, 2020

Equity [Abstract]

Reverse Stock Split

Stockholders’ Equity

Preferred stock and convertible preferred stock consist of the following: 

	September 30, 2020		December 31, 2019
Preferred stock, $0.001 par value; 5,000,000 shares authorized at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series B convertible preferred stock, $0.001 par value; 147,000 shares designated at September 30, 2020 and December 31, 2019; 200 shares issued and outstanding at September 30, 2020 and December 31, 2019	$	1	$	1
Series D convertible preferred stock, $0.001 par value; 21,300 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series E convertible preferred stock, $0.001 par value; 7,000 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—
Series F convertible preferred stock, $0.001 par value; 10,621 shares designated at September 30, 2020 and December 31, 2019; no shares issued and outstanding at September 30, 2020 and December 31, 2019	$	—	$	—

2020 equity activity

In February 2020, the Company entered into an At Market Issuance Sales Agreement (the "Agreement") with respect to an at-the-market offering program ("ATM program"), under which the Company may offer and sell, from time to time at its sole discretion, shares of its common stock, par value $0.0001 per share (the "Common Stock"), having an aggregate offering price of up to $4,482,000 (the "Placement Shares"). The issuance and sale of the Placement Shares by the Company under the Agreement will be made pursuant to the Company's effective "shelf" registration statement on Form S-3. During the nine months ended September 30, 2020, 2,348,619 shares of common stock were issued pursuant to the Agreement for net proceeds of $4,143,431.

In March 2020, the Company issued 31,000 shares of fully vested common stock with a value of $43,751 pursuant to a Separation Agreement between the Company and an employee. The shares issued reflected the $1.41 closing price of the Company's common stock as reported on the Nasdaq Capital Market on March 11, 2020.

In June 2020, the Company issued 4,364 shares of fully vested common stock with a value of $7,606 pursuant to the Company's 2010 Employee Stock Purchase Plan.

2019 equity activity

During the nine months ended September 30, 2019, 2,998.2 shares of the Company's Series D Preferred Stock were converted into a total of 114,000 shares of Common Stock and 3,260.70 shares of the Company's Series E Preferred Stock were converted into a total of 123,981 shares of Common Stock.

On November 18, 2019, the Company effected a 1-for-10 reverse stock split of its Common Stock, or the Reverse Stock Split. The par value and other terms of the common stock were not affected by the Reverse Stock Split. Share, per share, and stock option amounts for all periods presented within the financial statements contained in the Quarterly Report on Form 10-Q, including the December 31, 2019 Balance Sheet amounts for Common Stock and additional paid-in capital, have been retroactively adjusted to reflect the Reverse Stock Split.

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Commitments And Contingencies Commitments And Contingencies (Notes)

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies [Abstract]

Commitments and Contingencies Disclosure [Text Block]

The previously reported investigation by the Federal Trade Commission (the “Commission”) regarding Quell® advertising was settled in March 2020. The Company did not admit to any of the Commission's allegations, agreed to certain modifications of Quell advertising claims, and pledged to pay to the Commission future commercial milestone payments, if and when received, pursuant to a collaboration agreement with a third party.

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Business and Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2020

Accounting Policies [Abstract]

Share-based Payment Arrangement [Policy Text Block]

Stock-based Compensation

Total compensation cost related to non-vested awards not yet recognized at September 30, 2020 was $136,569. The total compensation costs are expected to be recognized over a weighted-average period of 0.3 years.

Unaudited Interim Financial Statements

Unaudited Interim Financial Statements

The accompanying unaudited balance sheet as of September 30, 2020, unaudited statements of operations, changes in stockholders' equity for the quarters and nine months ended September 30, 2020 and 2019 and cash flows for the nine months ended September 30, 2020 and 2019 have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and with the instructions to Form 10-Q and Article 8 of Regulation S-X. The accompanying balance sheet as of December 31, 2019 has been derived from audited financial statements prepared at that date but does not include all disclosures required by accounting principles generally accepted in the United States of America. In the opinion of management, the financial statements include all normal and recurring adjustments considered necessary for a fair presentation of the Company’s financial position and operating results. Operating results for the nine months endedSeptember 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020 or any other period. These financial statements and notes should be read in conjunction with the financial statements for the year ended December 31, 2019 included in the Company’s Annual Report on Form 10-K, as filed with the Securities and Exchange Commission, or the SEC, on January 28, 2020 (File No. 001-33351), or the Company’s 2019 Form 10-K.

Revenues

Revenues

Revenues include product sales, net of estimated returns. Revenue is measured as the amount of consideration the Company expects to receive in exchange for product transferred. Revenue is recognized when contractual performance obligations have been satisfied and control of the product has been transferred to the customer. In most cases, the Company has a single product delivery performance obligation. Accrued product returns are estimated based on historical data and evaluation of current information.

Accounts receivable are recorded net of the allowance for doubtful accounts, which represents the Company’s best estimate of credit losses. Allowance for doubtful accounts was $70,000 as of September 30, 2020 and December 31, 2019.

For the quarters ended September 30, 2020 and 2019, three customers accounted for 47% of total revenues and one customer accounted for 19% of total revenues, respectively. For the nine months ended September 30, 2020 and 2019, two customers accounted for 34% and one customer accounted for 20% of total revenues, respectively. Three customers accounted for 54% and two customers accounted for 42% of accounts receivable as of September 30, 2020 and December 31, 2019, respectively.

Collaboration Income

Collaboration Income is recognized within Other Income when contractual performance obligations, outside the ordinary activities of the Company, have been satisfied and control has been transferred to a collaboration partner. Collaboration Income for each performance obligation is based on the fair value of such performance obligation relative to the total fair value of all performance obligations multiplied by the overall transaction price. A deferred collaboration income liability is recorded when payments are received prior to satisfaction of performance obligations. A collaboration receivable is recorded when amounts are owed to the Company under the collaboration agreements and related support services. The Company recognized Collaboration income net of costs, within Other income in the Statement of Operations of zero and $7,116,667, for the nine months ended September 30, 2020 and 2019, respectively.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make significant estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during reporting periods. Actual results could differ from those estimates.

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Net Loss Per Common Share (Tables)

9 Months Ended

Sep. 30, 2020

Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Quarters Ended September 30,						Nine Months Ended September 30,
	2020			2019			2020			2019
Net loss applicable to common stockholders	$	(257,113	)	$	(1,404,600	)	$	(1,766,428	)	$	(2,716,284	)
Weighted average number of common shares outstanding, basic	3,784,657			978,175			2,755,903			886,609
Dilutive convertible preferred stock	—			—			—			—
Weighted average number of common shares outstanding, dilutive	3,784,657			978,175			2,755,903			886,609
Net loss per common share applicable to common stockholders, basic and diluted	$	(0.07	)	$	(1.44	)	$	(0.64	)	$	(3.06	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

	Quarters Ended September 30,		Nine Months Ended September 30,
	2020	2019	2020	2019
Options	162,373	40,396	163,303	45,777
Warrants	—	44,221	23,040	45,359
Convertible preferred stock	62	420,395	62	510,830
Total	162,435	505,012	186,405	601,966

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Inventories (Tables)

9 Months Ended

Sep. 30, 2020

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventories consist of the following: 

	September 30, 2020		December 31, 2019
Purchased components	$	690,643	$	720,209
Finished goods	359,650		443,505
	$	1,050,293	$	1,163,714

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Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2020

Payables and Accruals [Abstract]

Schedule of Accrued Expenses

Accrued expenses and compensation consist of the following:

	September 30, 2020		December 31, 2019
Technology fees	$	450,000	$	450,000
Professional services	291,000		454,000
Compensation	109,896		62,322
Advertising and promotion	6,000		68,000
Warranty	62,200		75,300
Other	92,132		333,952
	$	1,011,228	$	1,443,574

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Leases Leases (Tables)

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

2020	160,797
2021	653,164
2022	247,347
2023	165,785
2024	165,785
2025	117,431
Total minimum lease payments	$	1,510,309
Weighted-average discount rate, 14.7%	$	331,627
Lease obligation, current portion	596,779
Lease obligation, net of current portion	581,903
	$	1,510,309

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Assets and Liabilities Measured at Fair Value on Recurring Basis

			Fair Value Measurements at September 30, 2020 Using
	September 30, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	2,159,475	$	2,159,475	$	—	$	—
Total	$	2,159,475	$	2,159,475	$	—	$	—

			Fair Value Measurements at December 31, 2019 Using
	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents	$	698,807	$	698,807	$	—	$	—
Total	$	698,807	$	698,807	$	—	$	—

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Business and Basis of Presentation (Detail)		3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 18, 2019	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Organization And Basis Of Presentation [Line Items]
Restructuring Charges						$ 2,500,000
Accounts receivable, net		$ 633,146		$ 633,146		298,967
Net proceeds from issuance of stock and warrants				4,151,037	$ 7,497
Accumulated deficit		196,556,033		196,556,033		194,789,605
Cash and cash equivalents		4,929,175		4,929,175		3,126,206
Allowance for doubtful accounts		70,000		70,000		70,000
Reverse stock split conversion ratio	0.1
Prepaid expenses and other current assets		(677,526)		(677,526)		(652,919)
Assets, Current		(7,290,140)		(7,290,140)		(5,430,814)
Accrued Sales Return provisions		586,000		586,000		689,000
Liabilities, Current		(2,386,363)		(2,386,363)		(3,446,778)
Operating Lease, Liability, Noncurrent		(581,903)		(581,903)		(916,674)
Stockholders' Equity Attributable to Parent		5,371,772	$ 3,573,510	5,371,772	3,573,510	2,530,234	$ 5,488,616	$ 2,514,118	$ 4,857,650	$ 8,192,411	$ 6,097,811
Cost of revenues		537,614	914,322	1,652,890	6,382,340
Gross Profit		1,498,614	1,173,679	3,915,353	1,183,279
Compensation cost not yet recognized		136,569		$ 136,569
Compensation cost not yet recognized, period for recognition				3 months 18 days
Operating Lease, Right-of-Use Asset		(815,558)		$ (815,558)		(1,159,774)
Other long-term assets		(28,664)		(28,664)		(29,650)
Assets		(8,340,038)		(8,340,038)		(6,893,686)
Accrued Liabilities, Current		(1,011,228)		(1,011,228)		(1,443,574)
Liabilities		(2,968,266)		(2,968,266)		$ (4,363,452)
Collaboration Income		$ 0	$ 0	$ 0	$ 7,116,667
One Customer | Revenue | Customer Concentration Risk
Organization And Basis Of Presentation [Line Items]
Concentration risk, percentage			19.00%		20.00%
Three Customers [Member] | Revenue | Customer Concentration Risk
Organization And Basis Of Presentation [Line Items]
Concentration risk, percentage		47.00%
Three Customers [Member] | Accounts Receivable | Customer Concentration Risk
Organization And Basis Of Presentation [Line Items]
Concentration risk, percentage				54.00%
Two Customers | Revenue | Customer Concentration Risk
Organization And Basis Of Presentation [Line Items]
Concentration risk, percentage				34.00%
Two Customers | Accounts Receivable | Customer Concentration Risk
Organization And Basis Of Presentation [Line Items]
Concentration risk, percentage						42.00%

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Comprehensive Loss (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Equity [Abstract]
Other comprehensive income (loss), net of tax	$ 0	$ 0	$ 0	$ 0

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Net Loss Per Common Share - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive securities excluded from the computation of earnings per share (in shares)	162,435	505,012	186,405	601,966
Convertible preferred stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive securities excluded from the computation of earnings per share (in shares)	62	420,395	62	510,830
Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive securities excluded from the computation of earnings per share (in shares)	162,373	40,396	163,303	45,777
Warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total antidilutive securities excluded from the computation of earnings per share (in shares)	0	44,221	23,040	45,359

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Net Loss Per Common Share Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Earnings Per Share [Abstract]
Net Income (Loss) Attributable to Parent	$ (257,113)	$ (851,944)	$ (657,371)	$ (1,404,600)	$ (3,362,191)	$ 2,050,507	$ (1,766,428)	$ (2,716,284)
Weighted Average Number of Shares Outstanding, Basic	3,784,657			978,175			2,755,903	886,609
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock	0			0			0	0
Weighted Average Number of Shares Outstanding, Diluted	3,784,657			978,175			2,755,903	886,609
Earnings Per Share, Basic and Diluted	$ (0.07)			$ (1.44)			$ (0.64)	$ (3.06)

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Inventories (Detail) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Inventory [Line Items]
Purchased components	$ 690,643		$ 720,209
Inventory Write-down	0	$ (2,595,884)
Finished goods	359,650		443,505
Inventories	$ 1,050,293		$ 1,163,714

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Accrued Expenses - Schedule of Accrued Expenses (Detail) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Sales return allowance	$ 586,000	$ 689,000
Technology fees	450,000	450,000
Professional services	291,000	454,000
Warranty reserve	62,200	75,300
Accrued Advertising	6,000	68,000
Accrued Salaries	109,896	62,322
Other	92,132	333,952
Accrued expenses	$ 1,011,228	$ 1,443,574

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Leases Leases (Details) - USD ($)			3 Months Ended		9 Months Ended		21 Months Ended
	Jun. 01, 2018	Feb. 20, 2015	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Dec. 31, 2019
Operating Leased Assets [Line Items]
Operating Lease, Weighted Average Discount Rate, Percent			15.00%		15.00%		15.00%
Operating Lease, Weighted Average Remaining Lease Term			3 years 1 month 6 days		3 years 1 month 6 days		3 years 1 month 6 days
IdleFacilityImpairmentCharge			$ 76,000		$ 280,000	$ 0	$ 680,000
Operating Leases, Rent Expense			166,905	$ 166,025	500,713	$ 498,073
Lessee, Operating Lease, Liability, to be Paid, Year One			160,797		160,797		160,797
Lessee, Operating Lease, Liability, to be Paid, Year One			653,164		653,164		653,164
Lessee, Operating Lease, Liability, to be Paid, Year Two			247,347		247,347		247,347
Lessee, Operating Lease, Liability, to be Paid, Year Three			165,785		165,785		165,785
Lessee, Operating Lease, Liability, to be Paid, Year Four			165,785		165,785		165,785
Lessee, Operating Lease, Liability, to be Paid, after Year Five			117,431		117,431		117,431
Lessee, Operating Lease, Liability, to be Paid			1,510,309		1,510,309		1,510,309
Operating Lease Discount			331,627		331,627		331,627
Operating Lease, Liability, Current			596,779		596,779		596,779	$ 588,546
Operating Lease, Liability, Noncurrent			$ 581,903		$ 581,903		$ 581,903	$ 916,674
Woburn Lease [Member]
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Renewal Term	5 years
Lease Expiration Date					Sep. 30, 2025
Woburn Lease [Member] | MonthlyRent [Member]
Operating Leased Assets [Line Items]
Operating Lease, Payments	$ 13,846
Waltham Lease [Member]
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Renewal Term		5 years
Lease Expiration Date					Feb. 28, 2022
Waltham Lease [Member] | MonthlyRent [Member]
Operating Leased Assets [Line Items]
Operating Lease, Payments		$ 41,074
Research and Development Expense [Member]
Operating Leased Assets [Line Items]
IdleFacilityImpairmentCharge					$ 98,000
Selling and Marketing Expense [Member]
Operating Leased Assets [Line Items]
IdleFacilityImpairmentCharge					56,000
General and Administrative Expense [Member]
Operating Leased Assets [Line Items]
IdleFacilityImpairmentCharge					$ 126,000

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Restructuring And Related Activities (Details) - USD ($)	3 Months Ended	9 Months Ended		12 Months Ended	21 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019	Sep. 30, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				$ 2,500,000
Severance Costs				224,773
Restructuring Reserve	$ 400,000	$ 400,000			$ 400,000
IdleFacilityImpairmentCharge	76,000	280,000	$ 0		680,000
Facility Relocation Costs				100,000
Inventory Write-down		0	$ 2,595,884
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring				(224,773)
Restructuring Reserve	0	0			0
Facility Relocation [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring				$ (100,000)
Restructuring Reserve	0	0			0
Idle Facility Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring		(280,000)
Restructuring Reserve	$ 400,000	$ 400,000			$ 400,000

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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Assets
Cash equivalents	$ 2,159,475	$ 698,807
Assets, Fair Value Disclosure	2,159,475	698,807
Level 1
Assets
Cash equivalents	2,159,475	698,807
Assets, Fair Value Disclosure	2,159,475	698,807
Level 2
Assets
Cash equivalents	0	0
Assets, Fair Value Disclosure	0	0
Level 3
Assets
Cash equivalents	0	0
Assets, Fair Value Disclosure	$ 0	$ 0

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Credit Facility (Detail) - USD ($)	May 06, 2020	Apr. 28, 2020	Jan. 23, 2020	Sep. 30, 2020
Line of Credit Facility [Line Items]
Credit facility expiration date			Apr. 30, 2020
Credit facility limit restricted to support letter of credit				$ 226,731
Paycheck Protection Program [Member]
Line of Credit Facility [Line Items]
Repayments of Bank Debt	$ 773,200
Proceeds from Bank Debt		$ 773,200

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Stockholders' Equity - Preferred Stock and Convertible Preferred Stock (Detail) - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Non-Convertible Preferred Stock
Class of Stock [Line Items]
Value of preferred stock issued	$ 0	$ 0
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Series B Convertible Preferred Stock
Class of Stock [Line Items]
Value of preferred stock issued	$ 1	$ 1
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)	200	200
Preferred stock, shares outstanding (in shares)	200	200
Preferred stock, shares designated (in shares)	147,000	147,000
Series D Convertible Preferred Stock
Class of Stock [Line Items]
Value of preferred stock issued	$ 0	$ 0
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, shares designated (in shares)	21,300	21,300
Series E Convertible Preferred Stock
Class of Stock [Line Items]
Value of preferred stock issued	$ 0	$ 0
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, shares designated (in shares)	7,000	7,000
Series F Convertible Preferred Stock
Class of Stock [Line Items]
Value of preferred stock issued	$ 0	$ 0
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Preferred stock, shares designated (in shares)	10,621	10,621

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Stockholders' Equity - Additional Information (Detail) - USD ($)	1 Months Ended		3 Months Ended			9 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 11, 2020	Feb. 29, 2020	Dec. 31, 2019
Class of Stock [Line Items]
Stock Issued During Period, Value, Employee Stock Purchase Plan			$ 7,606		$ 7,497
Net proceeds from issuance of stock and warrants						$ 4,151,037	$ 7,497
Common stock, par value (in dollars per share)						$ 0.0001				$ 0.0001
Compensation cost not yet recognized						$ 136,569
Compensation cost not yet recognized, period for recognition						3 months 18 days
Series D Convertible Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (in shares)						0				0
Conversion of Stock, Shares Converted							2,998.2
Series E Convertible Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (in shares)						0				0
Conversion of Stock, Shares Converted							(3,260.7)
Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Employee Stock Purchase Plans	4,364		4,364		2,148
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 7,606		$ 1		$ 1
Stock Issued During Period, Shares, New Issues			2,092,541	256,078
Common Stock [Member] | Series D Convertible Preferred Stock
Class of Stock [Line Items]
Conversion of Stock, Shares Issued							114,000
Common Stock [Member] | Series E Convertible Preferred Stock
Class of Stock [Line Items]
Conversion of Stock, Shares Issued							(123,981)
Separation Agreement [Member] | Common Stock [Member]
Class of Stock [Line Items]
Stock Price (in dollars per share)								$ 1.41
Common Stock, Value, Issued		$ 43,751
Stock Issued During Period, Shares, Other		31,000
At The Market Offering Program [Member]
Class of Stock [Line Items]
Common stock, par value (in dollars per share)									$ 0.0001
Maximum Aggregate Offering Price									$ 4,482,000
Stock Issued During Period, Shares, New Issues						2,348,619
Proceeds from Issuance of Common Stock						$ 4,143,431

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Reverse Stock Split (Details)	Nov. 18, 2019	Sep. 30, 2020 shares	Dec. 31, 2019 shares
Class of Stock [Line Items]
Shares outstanding (in shares)		3,784,657	1,400,674
Reverse stock split conversion ratio	0.1

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Subsequent Event Subsequent Events (Details) - USD ($)	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Common Stock, Shares, Issued	3,784,657	1,400,674
At The Market Offering Program [Member]
Subsequent Event [Line Items]
Proceeds from Issuance of Common Stock	$ 4,143,431