10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

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

For the quarterly period ended March 31, 2019

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: 001-37941

SENESTECH, INC.

(Exact name of registrant as specified in its charter)

Delaware	20-2079805
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
3140 N. Caden Court, Suite 1 Flagstaff, AZ	86004
(Address of principal executive offices)	(Zip Code)

(928) 779-4143

(Registrant’s telephone number, including area code)

(Former name, former address and former fiscal year, if changed since last report)

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  ☒   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 such files).    Yes   ☒   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 the definitions 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	☐  (Do not check if a smaller reporting company)	Smaller reporting company	☒
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  ☒

Securities registered pursuant to Section 12(b) of the Securities Exchange Act of 1934:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.001 par value	SNES	The NASDAQ Stock Market LLC (NASDAQ Capital Market)

The number of shares of common stock outstanding as of May 15, 2019: 24,993,279

SENESTECH, INC.

FORM 10-Q

For the Quarterly Period Ended March 31, 2019

TABLE OF CONTENTS

		Page
	PART I. FINANCIAL INFORMATION
Item 1	Financial Statements	3
Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations	21
Item 3	Quantitative and Qualitative Disclosures About Market Risk	29
Item 4	Controls and Procedures	29
	PART II. OTHER INFORMATION
Item 1A	Risk Factors	30
Item 6	Exhibits	31
	Signatures	32
	Index to Exhibits

2

PART I. FINANCIAL INFORMATION

Item1. Financial Statements

SENESTECH, INC.

CONDENSED BALANCE SHEETS

(In thousands, except shares and per share data)

	March 31,			December 31,
	2019			2018
ASSETS	(Unaudited)
Current assets:
Cash	$	2,946		$	4,920
Accounts receivable		150			139
Prepaid expenses		345			342
Inventory		1,335			1,261
Deposits		8			9
Total current assets		4,784			6,671
Right to use asset-operating leases		76			—
Property and equipment, net		983			1,083
Total assets	$	5,843		$	7,754
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Short-term debt	$	202		$	219
Accounts payable		272			173
Accrued expenses		776			771
Total current liabilities		1,250			1,163
Long-term debt, net		227			261
Operating lease liability		76			—
Common stock warrant liability		5			—
Deferred rent		15			16
Total liabilities		1,573			1,440
Commitments and contingencies (See note 12)		—			—
Stockholders’ equity:
Common stock, $0.001 par value, 100,000,000 shares authorized, 23,560,864 and 23,471,999 shares issued and outstanding at March 31, 2019 and December 31, 2018, respectively		24			24
Additional paid-in capital		92,448			92,128
Accumulated deficit		(88,202	)		(85,838	)
Total stockholders’ equity		4,270			6,314
Total liabilities and stockholders’ equity	$	5,843		$	7,754

See accompanying notes to financial statements.

3

SENESTECH, INC.

CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(In thousands, except shares and per share data)

(Unaudited)

	For the Three Months Ended March 31,
	2019			2018
Net Sales	$	19		$	19
Cost of sales		12			19
Gross profit		7			—
Operating expenses:
Research and development		464			634
Selling, general and administrative		1,904			2,028
Total operating expenses		2,368			2,662
Net operating loss		(2,361	)		(2,662	)
Other income (expense):
Interest income		15			6
Interest expense		(13	)		(22	)
Other income (expense)		(5	)		13
Total other income (expense)		(3	)		(3	)
Net loss and comprehensive loss	$	(2,364	)	$	(2,665	)
Loss per share attributable to common shareholders, basic and diluted	$	(0.10	)	$	(0.16	)
Weighted average common shares outstanding - basic and fully diluted		23,518,400			16,496,385

See accompanying notes to financial statements.

4

SENESTECH, INC.
STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT)
(In thousands, except shares and per share data)
(Unaudited)

				Additional			Stock					Total
	Common Stock			Paid-In			Subscription		Accumulated			Stockholders'
	Shares	Amount		Capital			Payable		Deficit			Equity (Deficit)
Balance, December 31, 2017	16,404,195	$	16	$	81,103		$	—	$	(73,597	)	$	7,522
Issuance of common stock for services	94,151		1		27			—		—			28
Stock-based compensation	—		—		670			—		—			670
Issuance of common stock upon cashless exercise of stock options	13,900		—		—			—		—			—
Stock subscribed but not issued	—		—		(8	)		8		—			—
Net loss for the three months ended March 31, 2018	—		—		—			—		(2,665	)		(2,665	)
Balance, March 31, 2018	16,512,246	$	17	$	81,792		$	8	$	(76,262	)	$	5,555
Balance, December 31, 2018	23,471,999	$	24	$	92,128		$	—	$	(85,838	)	$	6,314
Issuance of common stock for services	38,580		—		32			—		—			32
Stock-based compensation	—		—		252			—		—			252
Issuance of common stock upon exercise of warrants	31,811		—		36			—		—			36
Issuance of common stock upon cashless exercise of stock options	18,474		—		—			—		—			—
Net loss for the three months ended March 31, 2019	—		—		—			—		(2,364	)		(2,364	)
Balance, March 31, 2019	23,560,864	$	24	$	92,448		$	—	$	(88,202	)	$	4,270

See accompanying notes to financial statements.

5

SENESTECH, INC.

CONDENSED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

	For the Three Months
	Ended March 31,
	2019			2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$	(2,364	)	$	(2,665	)
Adjustments to reconcile net loss to net cash used in operating activities:
Gain on investments		—			(18	)
Bad debts expense		—			5
Depreciation and amortization		111			117
Stock-based compensation		252			698
Loss on remeasurement of common stock warrant liability		5			—
(Increase) decrease in current assets:
Accounts receivable		(11	)		9
Prepaid expenses		(3	)		(75	)
Inventory		(74	)		(247	)
Deposits		1			2
Increase (decrease) in current liabilities:
Accounts payable		99			(22	)
Accrued expenses		37			(116	)
Deferred rent		(1	)		(6	)
Net cash used in operating activities		(1,948	)		(2,318	)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds received on sale of securities		—			798
Purchase of property and equipment		(11	)		(3	)
Net cash provided by (used in) investing activities		(11	)		795
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of notes payable, net		(32	)		(26	)
Repayments of notes payable, related parties		—			(6	)
Repayments of capital lease obligations		(19	)		(18	)
Proceeds from the exercise of warrants		36			—
Net cash provided by financing activities		(15	)		(50	)
NET CHANGE IN CASH		(1,974	)		(1,573	)
CASH AT BEGINNING OF PERIOD		4,920			2,101
CASH AT END OF PERIOD	$	2,946		$	528
SUPPLEMENTAL INFORMATION:
Interest paid	$	13		$	22
Income taxes paid	$	—		$	—
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Purchases of equipment under capital lease obligations	$	—		$	10
Common stock issued on accrued bonus	$	32		$	—

See accompanying notes to financial statements.

6

SENESTECH, INC. 

 NOTES TO CONDENSED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

Note 1 - Organization and Description of Business

SenesTech, Inc. (referred to in this report as “SenesTech,” the “Company,” “we” or “us”) was formed in July 2004 and incorporated in the state of Nevada. The Company subsequently reincorporated in the state of Delaware in November 2015. Our corporate headquarters is in Flagstaff, Arizona. We have developed and are commercializing a global, proprietary technology for managing animal pest populations, initially rat populations, through fertility control.

Although a myriad of tools are available to fight rat infestations, communities continue to face challenges in controlling today’s infestations. Infestations result in incredible infrastructure damage, as well as pose additional risks to the health and food security of communities. In addition to these challenges, the pest management industry and Pest Management Professionals (PMPs) are being increasingly asked for new solutions to help solve the problem. With growing concerns about rat resistance to rodenticides and a growing interest in non-lethal options, it is becoming increasingly important for PMPs to have new tools at their disposal. Our goal is to provide customers with not only a solution to combat their most difficult infestations, but also offer a non-lethal option to serve customers that are looking to decrease or remove the amount of poison used in their pest management programs.

Our first fertility control product, ContraPest, is a liquid bait containing the active ingredients 4-vinylcyclohexene diepoxide (VCD) and triptolide. When consumed, ContraPest targets reproduction, limiting fertility in male and female rats beginning with the first breeding cycle following consumption. ContraPest is being marketed for use in controlling rat populations, specifically Norway and roof rats. On August 23, 2015, the United States Environmental Protection Agency (EPA) granted registration approval for ContraPest as a Restricted Product Due to Professional Expertise (referred to in this report as a “Restricted Use designation”), effective August 2, 2016. On October 18, 2018, the EPA approved the removal of the Restricted Use designation. We believe ContraPest is the first and only non-lethal, fertility control product approved by the EPA for the management of rodent populations.

In addition to the EPA registration of ContraPest in the United States, we must obtain registration from the various state regulatory agencies prior to selling in each state. As of the date of this report, we have received registration for ContraPest in all 50 states and the District of Columbia, 35 of which have approved the removal of the Restricted Use designation.

We expect to continue to pursue regulatory approvals and amendments to existing registration in the United States for ContraPest, and if ContraPest begins to generate sufficient revenue, regulatory approvals for any additional jurisdictions beyond the United States. The Company also continues to develop other potential additional fertility control and animal health products for additional species.

Potential Need for Additional Capital

Since our inception, we have sustained significant operating losses in the course of our research and development activities and expect such losses to continue for the near future. We have generated limited revenue to date from product sales, research grants and licensing fees received under our former license agreement with Neogen. In 2017, we began to prepare and launch commercialization of our first product, ContraPest. We have primarily funded our operations to date through the sale of equity securities, including convertible preferred stock, common stock and warrants to purchase common stock. Public equity sales include:

(i) an initial public offering of 1,875,000 shares of our common stock on December 8, 2016 with warrants to purchase an additional 187,500 shares issued to Roth Capital Partners, LLC with an exercise price of $9.60 per share, as underwriter,

(ii) a public offering on November 21, 2017 of 5,860,000 shares of our common stock at $1.00 per share with warrants issued to investors to purchase an additional 4,657,500 shares of our common stock with an initial exercise price of $1.50 per share that subsequently adjusted downward to $0.95 per share pursuant to antidilution price protection contained within those warrants, and warrants issued to Roth Capital Partners, LLC, as underwriter, to purchase an additional 945,000 shares with an exercise price of $1.50 per share,

(iii) a private placement of warrants to purchase 1,133,909 shares of common stock in June 2018 with an exercise price of $1.82 per share in connection with an inducement agreement with a holder of outstanding warrants issued in November 2017 to exercise its original warrant representing 1,133,909 shares at an exercise price of $1.50 per share; and

(iv) a rights offering in August 2018 (the “Rights Offering”), where we accepted subscriptions for 5,357,052 units for a purchase price of $1.15 per unit, with each unit consisting of one share of our common stock and one warrant, with each warrant exercisable for one share of our common stock at an exercise price of $1.15 per share, and warrants issued to an affiliate of Maxim Group, LLC, as dealer-manager, to purchase an additional 267,853 shares at $1.725 per share

(v) issuance of 31,811 shares of common stock as a result of the exercise of warrants in March 2019 at an exercise price of $1.15 per warrant.

We have also raised capital through debt financing, consisting primarily of convertible notes; and, to a lesser extent, payments received in connection with product sales, research grants and licensing fees.

Through March 31, 2019, we had received net proceeds of $61.8 million from our sales of common stock, preferred stock and warrant exercises and issuance of convertible and other promissory notes, an aggregate of $1.7 million from licensing fees and an aggregate of $0.4 million in net product sales. At March 31, 2019, we had an accumulated deficit of $88.2 million and cash and cash equivalents of $2.9 million.

Our ultimate success depends upon the outcome of a combination of factors, including: (i) successful commercialization of ContraPest and ongoing regulatory approvals of our other product candidates, (ii) market acceptance, commercial viability and profitability of ContraPest and other products; (iii) the ability to market our products and establish an effective sales force and marketing infrastructure to generate significant revenue; (iv) the success of our research and development; (v) our ability to retain and attract key personnel to develop, operate and grow our business; and (vi) our ability to meet our working capital needs.

Based upon our current operating plan, we expect that cash and cash equivalents at March 31, 2019, in combination with anticipated revenue and additional sales of our equity securities, will be sufficient to fund our current operations for at least the next 12 months. However, if anticipated revenue targets and margin targets are not achieved and we are unable to raise necessary capital through the sale of our securities, we may seek to reduce operating expenses and take other measures that could impair our ability to be successful and operate as a going concern. In any event, we are likely to require additional capital in order to fund our operating losses and research and development activities until we become profitable. We may never achieve profitability or generate positive cash flows, and unless and until we do, we will continue to need to raise capital through equity or debt financing. If such equity or debt financing is not available at adequate levels or on acceptable terms, we may need to delay, limit or terminate commercialization and development efforts.

7

SENESTECH, INC. 

 NOTES TO CONDENSED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

Note 1 - Organization and Description of Business – (continued)

Basis of Presentation

The accompanying unaudited condensed financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial reporting. Certain information and footnote disclosures normally included in the annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations. In the Company’s opinion, the unaudited condensed financial statements include all material adjustments, all of which are of a normal and recurring nature, necessary to present fairly the Company’s financial position as of March 31, 2019, the Company’s operating results for the three months ended March 31, 2019 and 2018, and the Company’s cash flows for the three months ended March 31, 2019 and 2018. The accompanying financial information as of December 31, 2018 is derived from audited financial statements. Interim results are not necessarily indicative of results for a full year. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with the Company’s Annual Report on Form 10-K, as amended by Form 10-K/A, for the year ended December 31, 2018, both filed with the SEC on March 29, 2019. All amounts shown in these financial statements and accompanying notes are in thousands, except percentages and per share and share amounts. 

Note 2 - Summary of Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts and classification of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. The significant estimates in the Company’s financial statements include the valuation of preferred stock, common stock and related warrants, and other stock-based awards. Actual results could differ from such estimates.

Reclassifications

Certain prior year amounts have been reclassified to conform to the current period presentation. These reclassifications had no material impact on net earnings, financial position or cash flows.

Accounts Receivable

Accounts receivable consist primarily of trade receivables. The Company provides an allowance for doubtful trade receivables equal to the estimated uncollectible amounts. That estimate is based on historical collection experience, current economic and market conditions and a review of the current status of each customer’s trade accounts receivable. The allowance for doubtful trade receivables was less than $1 at March 31, 2019 and at December 31, 2018.

Inventories

Inventories are stated at the lower of cost or market value, using the first-in, first-out convention. Inventories consist of raw materials, work in progress and finished goods.

Components of inventory are:

	March 31,			December 31,
	2019			2018
Raw materials	$	1,087		$	1,111
Work in progress		1			—
Finished goods		251			154
Total inventory		1,339			1,265
Less:
Reserve for obsolete		(4	)		(4	)
Total net inventory	$	1,335		$	1,261

Prepaid Expenses

Prepaid expenses consist primarily of payments made for director and officer insurance, director compensation, rent, legal and inventory purchase deposits and seminar fees to be expensed in the current year.

Property and Equipment

Property and equipment are stated at cost less accumulated depreciation. Equipment held under capital leases are stated at the present value of minimum lease payments less accumulated amortization.

Depreciation on property and equipment is computed using the straight-line method over the estimated useful lives of the respective assets. The cost of leasehold improvements is amortized over the life of the improvement or the term of the lease, whichever is shorter. Equipment held under capital leases is amortized over the shorter of the lease term or estimated useful life of the asset. The Company incurs repair and maintenance costs on its major equipment, which are expensed as incurred.

Impairment of Long-Lived Assets

Long-lived assets, such as property and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require long-lived assets or asset groups to be tested for possible impairment, the Company compares the undiscounted cash flows expected to be generated from the use of the asset or asset group to its carrying amount. If the carrying amount of the long-lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment charge is recognized to the extent that the carrying amount exceeds its fair value. Fair value is determined through various valuation techniques, such as discounted cash flow models and the use of third-party independent appraisals. The Company has not recorded an impairment of long-lived assets since its inception.

8

SENESTECH, INC. 

 NOTES TO CONDENSED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

Note 2 - Summary of Significant Accounting Policies – (continued)

Revenue Recognition

Effective January 1, 2018, the Company adopted ASC 606 — Revenue from Contracts with Customers. Under ASC 606, the Company recognizes revenue from the commercial sales of products, licensing agreements and contracts to perform pilot studies by applying the following steps: (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to each performance obligation in the contract; and (5) recognize revenue when each performance obligation is satisfied. For the comparative periods, revenue has not been adjusted and continues to be reported under ASC 605 — Revenue Recognition. Under ASC 605, revenue is recognized when the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) the performance of service has been rendered to a customer or delivery has occurred; (3) the amount of the fee to be paid by a customer is fixed and determinable; and (4) the collectability of the fee is reasonably assured. The performance obligations identified by the Company under Accounting Standards Codification (“ASC”) Topic 606, Revenue From Contracts With Customers, are straightforward and similar to the unit of account and performance obligation determination under ASC Topic 605, Revenue Recognition. There was no impact on the Company’s financial statements as a result of adopting ASC 606 for the three months ended March 31, 2019 and 2018, respectively.

The Company recognizes revenue when it leaves their dock at a fixed selling price and payment terms of 30 to 120 days from invoicing. The Company recognizes other revenue earned from pilot studies upon the performance of specific services under the respective service contract.

The Company derives revenue primarily from commercial sales of products.

Research and Development

Research and development costs are expensed as incurred. Research and development expenses primarily consist of salaries and benefits for research and development employees, stock-based compensation, consulting fees, lab supplies, costs incurred related to conducting scientific trials and field studies, and regulatory compliance costs. Also, included in research and development expenses is an allocation of facilities related costs, including depreciation of research and development equipment.

 Stock-based Compensation

Employee stock-based awards, consisting of restricted stock units and stock options expected to be settled in shares of the Company’s common stock, are recorded as equity awards. The grant date fair value of these awards is measured using the Black-Scholes option pricing model. The Company expenses the grant date fair value of its stock options on a straight-line basis over their respective vesting periods. Performance-based awards are expensed over the performance period when the related performance goals are probable of being achieved.

For equity instruments issued to non-employees, the stock-based consideration is measured using a fair value method. The measurement of the stock-based compensation is subject to re-measurement as the underlying equity instruments vest.

The stock-based compensation expense recorded for the three months ended March 31, 2019 and 2018, is as follows:

	Three Months Ended March 31,
	2019		2018
Research and development	$	9	$	29
Selling, general and administrative		243		669
Total stock-based compensation expense	$	252	$	698

See Note 11 for additional discussion on stock-based compensation.

Income Taxes

Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax bases of assets and liabilities and net operating loss carryforwards using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in the period that includes the enactment date.

The Company records net deferred tax assets to the extent it believes these assets will more likely than not be realized. These deferred tax assets are subject to periodic assessments as to recoverability and if it is determined that it is more likely than not that the benefits will not be realized, valuation allowances are recorded which would increase the provision for income taxes. In making such determination, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies and recent financial operations. The Company currently maintains a full allowance against its deferred tax assets.

The Company applies a more-likely-than-not recognition threshold for all tax uncertainties. Only those benefits that have a greater than fifty percent likelihood of being sustained upon examination by the taxing authorities are recognized. Based on its evaluation, the Company has concluded there are no significant uncertain tax positions requiring recognition in its financial statements.

The Company recognizes interest and/or penalties related to uncertain tax positions in income tax expense. There are no uncertain tax positions as of March 31, 2019 or December 31, 2018 and as such, no interest or penalties were recorded in income tax expense.

9

SENESTECH, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 2 - Summary of Significant Accounting Policies – (continued)

Comprehensive Loss

Net loss and comprehensive loss were the same for all periods presented; therefore, a separate statement of comprehensive loss is not included in the accompanying financial statements.

Loss Per Share Attributable to Common Stockholders

Basic loss per share attributable to common stockholders is calculated by dividing the net loss attributable to common stockholders by the weighted average number of common shares outstanding during the period. Diluted loss per share attributable to common stockholders is computed by dividing the loss attributable to common stockholders by the weighted average number of common shares and potentially dilutive securities outstanding for the period determined using the treasury stock and if-converted methods. For purposes of the computation of diluted loss per share attributable to common stockholders, common stock purchase warrants, and common stock options are considered to be potentially dilutive securities but have been excluded from the calculation of diluted loss per share attributable to common stockholders because their effect would be anti-dilutive given the net loss reported for the three months ended March 31, 2019 and 2018. Therefore, basic and diluted loss per share attributable to common stockholders are the same for each period presented.

The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted loss per share attributable to common stockholders (in common stock equivalent shares):

	March 31,
	2019		2018
Common stock purchase warrants		11,195,010		6,431,785
Restricted stock unit		105,841		237,885
Common stock options		1,635,889		1,629,967
Total		12,936,740		8,299,637

10

SENESTECH, INC. 

NOTES TO CONDENSED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

Note 2 - Summary of Significant Accounting Policies – (continued)

Adoption of New Accounting Standards:

In May 2014 the FASB issued ASU 2014-09, Revenue from Contracts with Customers. Since ASU 2014-09 was issued, several additional ASUs have been issued to clarify various elements of the guidance. These standards provide guidance on recognizing revenue, including a five-step model to determine when revenue recognition is appropriate. The standard requires that an entity recognize revenue to depict the transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Effective January 1, 2018, the Company adopted ASU 2014-09, “Revenue from Contracts with Customers” using the modified retrospective method to all contracts that were not completed as of the date of adoption. The results of operations for reported periods after January 1, 2018 are presented under this amended guidance, while prior period amounts are reported in accordance with ASC 605 — Revenue Recognition. There was no material impact on our financial position, results of operations, or cash flows. See Note 2 — Summary of Significant Accounting Policies — Revenue Recognition.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This standard affects the accounting for equity instruments, financial liabilities under the fair value option and the presentation and disclosure requirements of financial instruments. ASU 2016-01 is effective the first quarter of 2018. The Company has adopted the provisions of ASU 2016-01 on its financial statements. There was no material impact on our financial position, results of operations, or cash flows.

In February 2016, the FASB issued ASU 2016-02, Leases (“ASU 2016-02”). This standard amends various aspects of existing accounting guidance for leases, including the recognition of a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. This standard also introduces new disclosure requirements for leasing arrangements. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years for public business entities. Early adoption was permitted, and the new standard had been adopted using a modified retrospective approach and provides for certain practical expedients.

On January 1, 2019, the Company adopted the new leasing standard and all related amendments. The Company elected the optional transition method provided by the FASB in ASU 2018-11, Leases (Topic 842): Targeted Improvements, and as a result, has not restated its condensed consolidated financial statements for prior periods presented. The Company has elected the practical expedients upon transition to retain the lease classification and initial direct costs for any leases that existed prior to adoption. The Company has also not reassessed whether any contracts entered into prior to adoption are leases.

The standard did not have a material impact on the Company’s Condensed Consolidated Statements of Comprehensive Income. The cumulative effect of the changes made to the Company’s Consolidated Balance Sheet as of January 1, 2019 for the adoption of the new leasing standard was as follows:

	Balance @ December 31, 2018		Adjustment Due to ASC 842			Balance @ January 1, 2019
Right to Use Asset - Long Term		—	$	87		$	87
Lease Liability – Long Term		—	($	87	)	($	87	)

The Company determines if an arrangement is a lease at lease inception. Operating lease right-of-use (ROU) assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company’s lease contracts do not include an implicit rate, the Company uses its incremental borrowing rate based on information available at commencement date in determining the present value of future payments. The incremental borrowing rate is estimated to approximate the interest rate on a collateralized basis with similar terms and payments, and in economic environments where the leased asset is located. The operating lease ROU asset also includes any initial direct costs and lease payments made prior to lease commencement and excludes lease incentives incurred.

The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Operating lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. The Company has certain lease agreements that contain both lease and non-lease components, which it has elected to account for as a single lease component for all asset classes

Accounting Standards Issued but Not Yet Adopted

In August 2018, the FASB issued authoritative guidance intended to address a customer’s accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. This guidance aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The guidance also requires presentation of the capitalized implementation costs in the statement of financial position and in the statement of cash flows in the same line item that a prepayment for the fees of the associated hosting arrangement would be presented, and the expense related to the capitalized implementation costs to be presented in the same line item in the statement of operations as the fees associated with the hosting element (service) of the arrangement. This guidance is effective for annual periods beginning after December 15, 2019, including interim periods within those annual periods, with early adoption permitted. We are currently evaluating the potential impact on our financial position, results of operations and statement of cash flows upon adoption of this guidance, which will result in the change in presentation of capitalized implementation costs related to hosting arrangements from properties to other assets on the consolidated balance sheet, as well as the expense related to such costs no longer being classified as depreciation expense and cash flows related to those costs no longer being presented as investing activities.

Other than the items noted above, there have been no new accounting pronouncements not yet effective or adopted in the current year that we believe have a significant impact, or potential significant impact, to our unaudited condensed consolidated interim financial statements.

11

SENESTECH, INC. 

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 3 - Fair Value Measurements

The Company issued common stock warrants to purchase shares of common stock in June of 2015 (see Note 11 — Stock-based Compensation for more details) that contain a cash settlement provision resulting in a common stock warrant liability that is revalued at the end of each reporting period.

We value these warrant derivatives at fair value. The accounting guidance for fair value, among other things, establishes a consistent framework for measuring fair value and expands disclosure for each major asset and liability category measured at fair value on either a recurring or nonrecurring basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the reporting date. The framework for measuring fair value consists of a three-level valuation hierarchy that prioritizes the inputs to valuation techniques used to measure fair value based upon whether such inputs are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions made by the reporting entity. The three-level hierarchy for the inputs to valuation techniques is briefly summarized as follows: 

Level 1—Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date;

Level 2—Inputs are observable, unadjusted quoted prices in active markets for similar assets or liabilities, unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities; and

Level 3—Unobservable inputs that are significant to the measurement of the fair value of the assets or liabilities that are supported by little or no market data.

An asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

Assets and liabilities measured at fair value are based on one or more of the following three valuation techniques:

A. Market approach: Prices and other relevant information generated by market transactions involving identical or comparable assets or liabilities.  

B. Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost).

C. Income approach: Techniques to convert future amounts to a single present amount based upon market expectations, including present value techniques, option-pricing and excess earnings models.

The Company’s common stock warrant liabilities are classified as Level 3 because there is limited activity or less transparency around the inputs to valuation.

12

SENESTECH, INC. 

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 3 - Fair Value Measurements – (continued)

Items Measured at Fair Value on a Recurring Basis 

The following table sets forth the Company’s financial instruments that were measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands):

	March 31, 2019
	Level 1		Level 2		Level 3		Total
Financial Liabilities:
Common stock warrant liability (1)	$	—	$	—	$	5	$	5
Total	$	—	$	—	$	5	$	5
	December 31, 2018
		Level 1		Level 2		Level 3		Total
Financial Assets:
Money market funds	$	—	$	—	$	—	$	—
Corporate fixed income debt securities		—		—		—		—
Total	$	3	$	—	$	—	$	—
Financial Liabilities:
Common stock warrant liability (1)	$	—	$	—	$	—	$	—
Total	$	—	$	—	$	—	$	—

(1) The change in the fair value of the common stock warrant and convertible notes payable for the three months ended March 31, 2019 was recorded as a decrease to other income (expense) and interest expense of $5, in the statements of operations and comprehensive loss.

Financial Instruments Not Carried at Fair Value

The carrying amounts of the Company’s financial instruments, including accounts payable and accrued liabilities, approximate fair value due to their short maturities. The estimated fair value of the convertible notes and other notes, not recorded at fair value, are recorded at cost or amortized cost which was deemed to estimate fair value.

13

SENESTECH, INC.  

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 4 - Credit Risk

The Company is potentially subject to concentrations of credit risk in its accounts receivable. Credit risk with respect to receivables is limited due to the number of companies comprising the Company’s customer base. Although the Company is directly affected by the financial condition of its customers, management does not believe significant credit risks exist at March 31, 2019 or December 31, 2018. The Company does not require collateral or other securities to support its accounts receivable.

Note 5 - Prepaid Expenses

Prepaid expenses consist of the following:

	March 31,		December 31,
	2019		2018
Director compensation	$	50	$	100
Director and officer insurance		146		121
NASDAQ fees		41
Legal retainer		25		25
Marketing programs and conferences		50		53
Professional services retainer		12		8
Rent		19		19
Equipment service deposits		2		3
Engineering, software licenses and other		—		13
Total prepaid expenses	$	345	$	342

Note 6 - Property and Equipment

Property and equipment, net consist of the following:

		March 31,			December 31,
	Useful Life	2019			2018
Research and development equipment	5 years	$	1,554		$	1,552
Office and computer equipment	3 years		751			742
Autos	5 years		54			54
Furniture and fixtures	7 years		37			37
Leasehold improvements	*		283			283
			2,679			2,668
Less accumulated depreciation and amortization			(1,696	)		(1,585	)
Total		$	983		$	1,083

* Shorter of lease term or estimated useful life

Depreciation and amortization expense was approximately $111 and $117 for the three months ended March 31, 2019 and 2018, respectively.

Note 7 - Accrued Expenses

Accrued expenses consist of the following:

	March 31,		December 31,
	2019		2018
Compensation and related benefits	$	259	$	479
Accrued Litigation		507		269
Board Compensation		—		23
Other		10		—
Total accrued expenses	$	776	$	771

14

SENESTECH, INC. 

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 8 - Borrowings

A summary of the Company’s borrowings, including capital lease obligations, is as follows:

	March 31,			December 31,
Short-term debt:	2019			2018
Current portion of long-term debt		202			219
Total short-term debt	$	202		$	219
Long-term debt:
Capital lease obligations	$	212		$	232
Other promissory notes		217			248
Total		429			480
Less: current portion of long-term debt		(202	)		(219	)
Total long-term debt	$	227		$	261

Capital Lease Obligations 

Capital lease obligations are for computer and lab equipment leased through GreatAmerica Financial Services, Thermo Fisher Scientific, Navitas Credit Corp. and ENGS Commercial Finance Co. These capital leases expire at various dates through July 2023 and carry interest rates ranging from 6.4% to 11.6%.

Other Promissory Notes

Also included in the table above are three notes payable to Direct Capital, one note to M2 Financing and one note to Fidelity Capital, all for the financing of fixed assets. These notes expire at various dates through June 2022 and carry interest rates ranging from 4.3% to 13.8%.

Note 9 - Common Stock Warrants and Common Stock Warrant Liability

The table summarizes the common stock warrant activity as of March 31, 2019 as follows:

Common Stock Warrants	Number of Warrants			Date  Issued	Term		Exercise Price
Outstanding at December 31, 2017		6,431,785
Warrants issued		1,133,909		June 2018		5 Years	$	1.82
Common Stock Offering Warrants Issued		5,357,052		August 2018		5 Years	$	1.15	(1)
Common Stock Offering - Dealer Manager Warrants		267,853		August 2018		5 Years	$	1.725
Warrants exercised		(1,475,659	)
Expired Warrants		(488,119	)
Outstanding at December 31, 2018		11,226,821
Warrants Exercised		(31,811	)	August 2018			$	1.15
Outstanding at March 31, 2019		11,195,010

(1) The common stock warrants issued in November 2017 with an initial exercise price of $1.50 per share adjusted downward to $0.95 per share effective July 24, 2018 in connection with our Rights Offering, and may be subject to further downward adjustments, pursuant to antidilution price adjustment protection contained within those warrants.

On November 21, 2017, the Company issued a total of 4,657,500 detachable common stock warrants issued with the second public offering of 5,860,000 shares of its common stock at $1.00 per share. The common stock warrant is exercisable until five years from the date of grant. The common shares of the Company’s stock and detachable warrants exist independently as separate securities. As such, the Company estimated the fair value of the common stock warrants, exercisable at $1.50 per share, to be $661 using a lattice model based on the following significant inputs: Common stock price of $1.00; comparable company volatility of 73.8%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 1.87. The initial exercise price of these warrants was $1.50 per share, which adjusted downward to $1.47 on July 24, 2018, the record date of the Right’s Offering and downward to $0.95 per share on August 13, 2018, the date of the Rights Offering, pursuant to antidilution price adjustment protection contained within these warrants. Per guidance of ASC 260, the Company recorded a deemed dividend of $333 on the 3,181,841 unexercised warrants that contained this antidilution price adjustment protection provision and was calculated as the difference between the fair value of the warrants immediately prior to downward exercise price adjustment and immediately after the adjustment using a Black Scholes model based on the following significant inputs: On July 24, 2018: Common stock price of $1.38; comparable company volatility of 72.4%; remaining term 4.33 years; dividend yield of 0% and risk-free interest rate of 2.83. On August 13, 2018: Common stock price of $1.02; comparable company volatility of 74.0%; remaining term 4.25 years; dividend yield of 0% and risk-free interest rate of 2.75.

15

SENESTECH, INC.  

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 9 - Common Stock Warrants and Common Stock Warrant Liability – (continued)

On June 20, 2018, the Company entered into an agreement with a holder of 1,133,909 of the November 2017 warrants to exercise its original warrant representing 1,133,909 shares of Common Stock for cash at the $1.50 exercise price for gross proceeds of $1.7 million and the Company issued to holder a new warrant to purchase 1,133,909 shares of Common Stock at an exercise price of $1.82 per share. The new warrant did not contain the antidilution price adjustment protection that was contained within the exercised warrants. In June 2018, the Company recorded stock compensation expense of $1.7 million representing the fair value of the of 1,133,909 inducement warrants issued. The Company estimated the fair value of the common stock warrants, exercisable at $1.82 per share, to be $1.7 million using a Black Scholes model based on the following significant inputs: Common stock price of $2.11; comparable company volatility of 72.6%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 2.8%. Also, in June 2018, an additional 341,750 of the November 8, 2017 warrants that were in the money at the time of exercise, were exercised for gross proceeds of $513.

On August 13, 2018, in connection with a Rights Offering of 5,357,052 shares of its common stock, the Company issued 5,357,052 warrants to purchase shares of its common stock at an exercise price of $1.15 per share. The Company estimated the fair value of the common stock warrants, exercisable at $1.15 per share, to be $3.6 million using a Monte Carlo model based on the following significant inputs: common stock price of $0.94; comparable company volatility of 159.0%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 2.77%.

In connection with the closing of the Rights Offering, the Company issued a warrant to purchase 267,853 shares of common stock to Maxim Partners LLC, an affiliate of the dealer-manager of the Rights Offering. The Company estimated the fair value of the common stock warrants, exercisable at $1.725 per share, to be $169 using a using a Monte Carlo model based on the following significant inputs: common stock price of $0.94; comparable company volatility of 159.0%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 2.77%.

Common Stock Warrant Issued to Underwriter of Common Stock Offering

In November 2017, the Company issued to Roth Capital Partners, LLC, as underwriter, a warrant to purchase 945,000 shares of common stock at an exercise price of $1.50 per share as consideration for providing services in connection with our common stock offering. The warrant was fully vested and exercisable on the date of issuance. The common stock warrant is exercisable until five years from the date of grant. The Company estimated the fair value of the common stock warrants, exercisable at $1.50 per share, to be $134 using a lattice model based on the following significant inputs: Common stock price of $1.00; comparable company volatility of 73.8%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 1.87%.

University of Arizona Common Stock Warrant

In connection with the June 2015 amended and restated exclusive license agreement with the University of Arizona (“University”), the Company issued to the University a common stock warrant to purchase 15,000 shares of common stock at an exercise price of $7.50 per share. The warrant was fully vested and exercisable on the date of grant, and expires, if not exercised, five years from the date of grant. In the event of a “terminating change” of the Company, as defined in the warrant agreement, the warrant holder would be paid in cash the aggregate fair market value of the underlying shares immediately prior to the consummation of the terminating change event. Due to the cash settlement provision, the derivative warrant liability was recorded at fair value and is revalued at the end of each reporting period. The changes in fair value are reported in other income (expense) in the statements of operations and comprehensive loss. The estimated fair value of the derivative warrant liability was $53 at the date of grant.

The estimated fair value of the derivative warrant liability was $5 at March 31, 2019. As this derivative warrant liability is revalued at the end of each reporting period, the fair values as determined at the date of grant and subsequent periods was based on the following significant inputs using a Monte Carlo option pricing model: common stock price of $7.91; comparable company volatility of 77.7% of the underlying common stock; risk-free rates of 1.93%; and dividend yield of 0%; including the probability assessment of a terminating change event occurring. The change in fair value of the derivative warrant liability was $5 for the three months ended March 31, 2019 and was recorded in other income (expense) in the accompanying statements of operations and comprehensive loss.

16

SENESTECH, INC. 

NOTES TO THE FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 10 - Stockholders’ Deficit

Capital Stock

The Company was organized under the laws of the state of Nevada on July 27, 2004 and was subsequently reincorporated under the laws of the state of Delaware on November 10, 2015. In connection with the reincorporation, as approved by the stockholders, the Company changed its authorized capital stock to consist of (i) 100 million shares of common stock, $.001 par value, and (ii) 2 million shares of preferred stock, $0.001 par value, designated as Series A convertible preferred stock. In December 2015, the Company amended its Certificate of Incorporation to change its authorized capital stock to provide for 15 million authorized shares of preferred stock of which 7,515,000 was designated as Series B convertible preferred stock, par value $.001 per share.

Prior to November 10, 2015, the Company’s authorized capital stock consisted of 100 million shares of common stock, $.001 par value, and 10 million shares of preferred stock, $.001 par value.

Common Stock

The Company had 23,560,864 and 23,471,999 shares of common stock issued and outstanding as of March 31, 2019 and December 31, 2018, respectively. 

During the three months ended March 31, 2019, the Company issued an aggregate of 88,865 shares of common stock as follows:

● an aggregate of 31,811 shares for the exercise of outstanding warrants,

● 18,474 shares for the cashless exercise of stock options and

● an aggregate of 38,580 shares to certain employees in net settlement of bonus compensation totaling $32.

Note 11 - Stock-based Compensation

On June 12, 2018, the Company’s stockholders approved the 2018 Equity Incentive Plan (the “2018 Plan”) to replace the Company’s 2015 Equity Incentive Plan (the “2015 Plan”). The 2018 Plan authorizes the issuance of 1,000,000 shares of our common stock. In addition, up to 2,874,280 shares of our common stock reserved for issuance under the 2015 Plan became available for issuance under the 2018 Plan to the extent such shares were available for issuance under the 2015 Plan as of June 12, 2018 or cease to be subject to awards outstanding under the 2015 Plan, such as by expiration, cancellation, or forfeiture of such awards.

The stock-based awards are generally issued with a price equal to no less than fair value at the date of grant. Options granted under the 2018 Plan generally vest immediately, or ratably over a two- to 36-month period coinciding with their respective service periods; however, participants may exercise their options prior to vesting as provided by the 2018 Plan. Unvested shares issued for options exercised early may be subject to a repurchase by the Company if the participant terminates, at the original exercise price. Options under the 2018 Plan generally have a contractual term of five years. Certain stock option awards provide for accelerated vesting upon a change in control.

As of March 31, 2019, the Company had 1,874,589 shares of common stock available for issuance under the 2018 Plan.

The Company measures the fair value of stock options with service-based and performance-based vesting criteria to employees, directors and consultants on the date of grant using the Black-Scholes option pricing model. The fair value of equity instruments issued to non-employees is re-measured as the award vests. The Black-Scholes valuation model requires the Company to make certain estimates and assumptions, including assumptions related to the expected price volatility of the Company’s stock, the period under which the options will be outstanding, the rate of return on risk-free investments, and the expected dividend yield for the Company’s stock.

The weighted-average assumptions used in the Black-Scholes option-pricing model used to calculate the fair value of options granted during the three months ended March 31, 2019, were as follows:

	Employee			Non-Employee
Expected volatility		80.6	%		N/A
Expected dividend yield		—			N/A
Expected term (in years)		3.0			N/A
Risk-free interest rate		2.48	%		N/A

The weighted average grant date fair value of options granted during the three months ended March 31, 2019 was $0.854 per share, as per the table below. .

17

SENESTECH, INC. 

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 11 - Stock-based Compensation – (continued)

Due to the Company’s limited operating history and lack of company-specific historical or implied volatility, the expected volatility assumption was determined based on historical volatilities from traded options of biotech companies of comparable in size and stability, whose share prices are publicly available. The expected term of options granted to employees is calculated based on the mid-point between the vesting date and the end of the contractual term according to the simplified method as described in SEC Staff Accounting Bulletin 110 because the Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term due to the limited period of time its awards have been outstanding. For non-employee options, the expected term of options granted is the contractual term of the options. The risk-free interest rate is determined by reference to the implied yields of U.S. Treasury securities with a remaining term equal to the expected term assumed at the time of grant. The expected dividend assumption is based on the Company’s history and expectation of dividend payouts. The Company has not paid and does not intend to pay dividends.

The following table summarizes the stock option activity, for both equity plans, for the periods indicated as follows:

	Number of Options			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (1)
Outstanding at December 31, 2018		1,721,171		$	1.57		4.0	$	—
Granted		8,218		$	0.854		4.9	$	3
Exercised		(54,000	)	$	0.50		—	$	—
Forfeited		(39,500	)	$	—		—	$	—
Expired		—		$	—		—	$	—
Outstanding at March 31, 2019		1,635,889		$	1.54		3.8	$	—
Exercisable at March 31, 2019		1,416,500		$	1.57		3.0	$	—

(1) The aggregate intrinsic value in the table was calculated based on the difference between the estimated fair market value of the Company’s stock and the exercise price of the underlying options. The estimated stock values used in the calculation was $1.22 and $0.59 per share for the three months ended March 31, 2019 and the year ended December 31, 2018, respectively.

Restricted Stock Units

The following table summarizes restricted stock unit activity for the three months ended March 31, 2019:

	Number of Units			Weighted Average Grant-Date Fair Value Per Unit
Outstanding as of December 31, 2018		136,245		$	0.98
Granted		6,262		$	0.854
Vested		(36,666	)(1)	$	0.50
Forfeited		—		$	—
Outstanding as of March 31, 2019		105,841		$	1.26

(1) These shares vested on March 30, 2019 (Saturday) and were issued on Monday, April 1, 2019.  

The stock-based compensation expense was recorded as follows:

	Three Months Ended March 31,
	2019		2018
Research and development	$	9	$	29
Selling, general and administrative		243		669
Total stock-based compensation expense	$	252	$	698

The allocation between research and development and selling, general and administrative expense was based on the department and services performed by the employee or non-employee.

At March 31, 2019, the total compensation cost related to unvested options not yet recognized was $335, which will be recognized over a weighted average period of 24 months, assuming the employees and non-employees complete their service period required for vesting.

18

SENESTECH, INC. 

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

12 - Commitments and Contingencies

Legal Proceedings 

The Company may be subject to legal proceedings and claims arising from contracts or other matters from time to time in the ordinary course of business. Management is not aware of any pending or threatened litigation where the ultimate disposition or resolution could have a material adverse effect on its financial position, results of operations or liquidity.

On February 20, 2018, New Enterprises, Ltd. (“New Enterprises”), filed lawsuit against the Company and Roth Capital Partners, LLC (“Roth”) in the U.S. District Court for the District of Arizona (the “Court”). The complaint alleges nine counts against the Company, including that: the Company engaged in common law fraud and securities fraud to induce the chairman of New Enterprises into investing in the Company; failed to register New Enterprises’ requested transfer; breached stock certificates and the lock-up contract; tortuously interfered with prospective business advantage; and conversion. New Enterprises is seeking monetary damages, including compensatory damages, punitive damages, and attorney’s fees. On December 3, 2018, the Court issued its order granting the Company’s and Roth’s motions to dismiss all of New Enterprises’ claims but gave them leave to file a motion to amend the complaint.  On January 25, 2019, New Enterprises moved for leave to file an amended complaint, alleging similar claims against the Company and Roth. The Company and Roth have filed motions to dismiss the amended complaint and those motions are under advisement with the Court as of May 15, 2019. Roth has made a claim for indemnification to the Company based on contractual indemnification agreements, but to date, the Company has not accepted Roth’s indemnification demand.

On April 20, 2018, the Company’s former Executive Vice President and Chief Operating Officer Andrew Altman filed a charge of employment discrimination with the Equal Employment Opportunity Commission (EEOC) against the Company. Mr. Altman claimed that he was terminated after he expressed opposition to an email Cheryl Dyer, Chief Research Officer, had sent out to the management team, in which she criticized a Mormon newspaper. The Company filed a position statement on May 21, 2018. No substantive action has been taken since then, and the Company has not heard anything further either from the EEOC or Mr. Altman’s attorneys.

Lease Commitments

The Company is obligated under capital leases for certain research and computer equipment that expire on various dates through July 2023. At March 31, 2019, the gross amount of office and computer equipment, and research equipment and the related accumulated amortization recorded under the capital leases was $521 and $225, respectively.

In February 2012, the Company entered into an operating lease for its corporate headquarters. The lease was due to expire in January 2015. In December 2013, the Company amended its lease to expand into the remaining area in the building and extended the term to December 31, 2019. In February 2014, the Company further amended the lease to expand into an adjacent building. The lease requires escalating rental payments over the lease term. Minimum rental payments under the operating lease are recognized on a straight-line basis over the term of the lease and accordingly, the Company records the difference between the cash rent payments and the recognition of rent expense as a deferred rent liability. The lease is guaranteed by the President of the Company. We are currently in discussions to extend the current lease.

On November 16, 2016, we leased an additional 1,954 square feet of research and development space, also in Flagstaff. This lease expired on November 15, 2018 but was extended for an additional 24 months, through November 2020. A subsequent amendment to the lease allows for the Company to cancel the lease at any time through the lease term with 30 days notice.

The lease extension requires fixed rental payments over the lease term. Minimum rental payments under the operating lease are recognized on a straight-line basis over the term of the lease as expense, and accordingly, the Company recorded no deferred rent liability under this lease.

Rent expense was $68 and $61 for the three months ended and year ended March 31, 2019 and March 31, 2018, respectively. The future minimum lease payments under non-cancellable operating lease and future minimum capital lease payments as of March 31, 2019 are as follows:

	Capital Leases		Operating Lease
Years Ending December 31,
2019		73		203
2020		78		45
2021		63		—
2022		33		—
2023		3
Total minimum lease payments	$	250	$	248

	Capital Leases
Less: amounts representing interest (6.39%, ranging from 10.48% to 11.56%)	$	37
Present value of minimum lease payments		213
Less: current installments under capital lease obligations		77
Total long-term portion	$	136

19

SENESTECH, INC.

NOTES TO CONDENSED FINANCIAL STATEMENTS 

(In thousands, except share and per share data)

Note 13 - Subsequent Events

In April 2019, the Company net issued 17,042 shares of common stock to certain employees in net settlement of restricted stock units that vested during the period. The shares of common stock withheld were used to satisfy required withholding tax liability in connection with the vesting of shares.

Also in April 2019, the Company net issued 3,488 shares of common stock in settlement of the cashless exercise of vested common stock options by two former employees.

In April and May of 2019, the Company issued an aggregate of 1,411,885 shares of commons stock for the exercise of certain warrants. The net proceeds to the Company for these exercises was $1.6 million.

The Company has evaluated subsequent events from the balance sheet date through May 15, 2019, the date at which the financial statements were issued, and determined that there were no other items that require adjustment to or disclosure in the financial statements.

20

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

As used in this Quarterly Report on Form 10-Q, “SenesTech,” the “Company,” “we,” “us,” or “our” refer to SenesTech, Inc., a Delaware   corporation.  

The following Management’s Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with   our condensed consolidated financial statements and related notes. Some statements and information contained in this Management’s Discussion   and Analysis of Financial Condition and Results of Operations, notes to our condensed consolidated financial statements and elsewhere in this   report are not historical facts but are forward- looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended   (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). In some cases, readers can   identify forward- looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,” “intend,” “forecast,” “anticipate,” “believe,”   “estimate,” “predict,” “potential,” “continue,” or the negative of these terms or other comparable terminology, which when used are meant to   signify the statement as forward-looking. These forward-looking statements include, but are not limited to, our expectations regarding new   accounting standards on our financial results, our expectations regarding our critical accounting policies; our expectations regarding our current   operating plan, including operating expenses, product sales and revenue expectations, profitability and cash flows, anticipated revenue and sales of   our equity securities, our beliefs regarding the use of stock-based awards as a compensation tool, our beliefs regarding certain tax positions, our   beliefs regarding our revenue targets and the sufficiency of our liquidity and capital resources, our beliefs regarding ongoing litigation, our   expectations regarding our significant employees, our expectations regarding commercialization of ContraPest and product development of our   other product candidates, our expectations regarding our sales channel, including distributors, our expectations regarding regulatory approval of   our products or product candidates, the continued listing of our common stock on The Nasdaq Capital Market, statements about our plans,   objectives, expectations and intentions and other statements that are not historical facts. These forward-looking statements are not guarantees of   future performance and involve known and unknown risks, uncertainties and situations that are difficult to predict and that may cause our own, or   our industry’s actual results, to be materially different from the future results that are expressed or implied by these statements. Accordingly, actual   results may differ materially from those anticipated or expressed in such statements as a result of a variety of factors, including those discussed in   Item 1A of Part II of our Annual Report on Form 10-K, as amended by Form 10-K/A, for the year ended December 31, 2018, both filed with the SEC on March 29, 2019 (collectively, the “2018 Annual Report”), entitled “Risk Factors,” and those contained from time to time in our other filings with the Securities and Exchange Commission. Readers are cautioned not to place undue reliance on the forward-looking statements, which speak only as of the date made. Except as required by law, we undertake no obligation to update any forward-looking statement, whether as a result of new information, future events or otherwise.

Overview

Since our inception in 2004, we have devoted substantially all of our resources to organizing and staffing our company, conducting research and   development activities for our product candidates, business planning, raising capital and acquiring and developing product and technology   rights. Until August 2016, we did not have any products approved for sale, and we have generated minimal revenue from product sales to date.   We have primarily funded our operations to date with proceeds from the sale of common stock and preferred stock, the issuance of convertible   and other promissory notes and, to a lesser extent, payments received in connection with research grants and licensing fees. Through March 31,   2019, we had received net proceeds of $61.8 million from our sales of common stock, preferred stock and issuance of convertible and other   promissory notes and an aggregate of $1.7 million from research grants and licensing fees and an aggregate of $0.4 million in product sales. At   March 31, 2019, we had an accumulated deficit of $88.2 million and cash and cash equivalents of $2.9 million.

We have incurred significant operating losses every year since our inception. Our net losses were $2.4 million and $2.7 million for the three months ended March 31, 2019 and March 31, 2018, respectively. We expect to continue to incur significant expenses and generate operating losses for at least the next 12 months.

We have historically utilized, and intend to continue to utilize, various forms of stock-based awards in order to hire, retain and motivate talented employees, consultants and directors and encourage them to devote their best efforts to our business and financial success. In addition, we believe that our ability to grant stock-based awards is a valuable and necessary compensation tool that aligns the long-term financial interests of our employees, consultants and directors with the financial interests of our stockholders.

As a result, a significant portion of our operating expenses includes stock-based compensation expense. Stock-based compensation expense has been, and will continue to be for the foreseeable future, a significant recurring expense in our business and an important part of our compensation strategy. Specifically, our stock-based compensation expense for the three months ended March 31, 2019 and March 31, 2018 was $0.3 million and $0.7.million, respectively, which represented 10.6% and 28.6%, respectively, of our total operating expenses for those periods.

Components of our Results of Operations

Net Sales

Net sales are comprised primarily of sales, net of discounts and promotions, of ContraPest and related components, to our distributors and customers. 

Operating Expenses

Research and Development Expenses

Research and development expenses consist primarily of costs incurred in connection with the research and development of ContraPest and our other product candidates, which include:

● Employee related expenses, including salaries, related benefits, travel and stock-based compensation expense for employees engaged in research and development functions;

● Expenses incurred in connection with the development of our product candidates; and

Facilities, depreciation and other expenses, which include direct and allocated expenses for rent and maintenance of facilities, insurance and supplies.

21

We expense research and development costs as incurred.

We continue to investigate other applications of our core technology to other product candidates, which includes laboratory tests and academic collaborations. We also continue to develop our supply chain, particularly identifying and improving our sourcing of triptolide, a key active ingredient for our product candidates. At this time, we cannot reasonably estimate the costs for further development of ContraPest or the cost associated with the development of any of our other product candidates.

We plan to continue to hire employees to support our research and development efforts and anticipate that we will continue to utilize various forms of stock-based compensation awards in order to attract and retain employees for our research and development efforts. As a result, we anticipate that stock-based compensation expense will continue to represent a significant portion of our research and development expenses for the foreseeable future.

Selling, General and Administrative Expenses

Selling, general and administrative expenses consist primarily of salaries and related costs, including stock-based compensation, for personnel in executive, finance, sales, marketing and administrative functions. Selling, general and administrative expenses also include direct and allocated facility-related costs as well as professional fees for legal, consulting, accounting and audit services.

We anticipate that our selling, general and administrative expenses may increase in the future as we increase our headcount to support commercialization of ContraPest and further development of our product candidates. We also anticipate that we will incur increased accounting, audit, legal, regulatory, compliance, director and officer insurance costs as well as investor and public relations expenses associated with being a public company.

We plan to continue to hire employees to support our commercialization of ContraPest and further development of our product candidates and anticipate that we will continue to utilize various forms of stock-based compensation awards in order to attract and retain qualified employees. As a result, we anticipate that stock- based compensation expense will continue to represent a significant portion of our selling, general and administrative expenses for the foreseeable future.

Interest Income.

Interest income consists primarily of interest income earned on cash and cash equivalents. Prior to 2017, our interest income has not been significant due to nominal cash and investment balances and low interest earned on invested balances.

Interest Expense.

Interest expense consists primarily of interest accrued on our capital lease and note commitments.

Other Income (Expense), Net.

Other income (expense), net, consists primarily of recognized change in value of short-term investments and income (expense) related to the year-over-year fair market value adjustment of our derivative warrant.

Income Taxes

Deferred tax assets and liabilities are determined based on differences between the financial statement and tax basis of assets and liabilities, as well as a consideration of net operating loss and credit carry forwards, using enacted tax rates in effect for the period in which the differences are expected to impact taxable income. A valuation allowance is established, when necessary, to reduce deferred tax assets to the amount that is more likely than not to be realized. The Company’s effective tax rate for the years ended December 31, 2018 and December 31, 2017 has been affected by the full valuation allowance on the Company’s deferred tax assets.

Since our inception, we have not recorded any U.S. federal or state income tax benefits for the net losses we have incurred in each year or for our earned research and development tax credits, due to our uncertainty of realizing a benefit from those items. At March 31, 2019, the Company has federal and state net operating loss carryforwards of approximately $53.5 million and $40.0 million, respectively, not considering any potential Internal Revenue Code of 1986 (“IRC”) Section 382 annual limitation discussed below. The federal loss carryforwards begin to expire in 2023, unless previously utilized. Additionally, the utilization of the net operating loss and tax credit carryforwards could be subject to an annual limitation under IRC sections 382 and 383, and similar state tax provisions due to ownership change limitations that have occurred previously or that could occur in the future. These ownership changes limit the amount of net operating loss carryforwards and other deferred tax assets that can be utilized to offset future taxable income and tax, respectively. In general, an ownership change, as defined by IRC Sections 382 and 383. results from transactions increasing ownership of certain stockholders or public groups in the stock of the corporation by more than 50 percent points over a three-year period. The Company has not conducted an analysis of an ownership change under IRC Section 382. To the extent that a study is completed and an ownership change is deemed to occur, the Company’s net operating losses could be limited

22

Comparison of the Three Months Ended March 31, 2019 and 2018

The following table summarizes our results of operations for the three months ended March 31, 2019 and 2018:

	For the Three Months Ended March 31,
	2019			2018
Net Sales	$	19		$	19
Cost of sales		12			19
Gross profit		7			—
Operating expenses:
Research and development		464			634
Selling, general and administrative		1,904			2,028
Total operating expenses		2,368			2,662
Net operating loss		(2,361	)		(2,662	)
Other income (expense):
Interest income		15			6
Interest expense		(13	)		(22	)
Other income (expense)		(5	)		13
Total other income (expense)		(3	)		(3	)
Net loss and comprehensive loss	$	(2,364	)	$	(2,665	)
Loss per share attributable to common shareholders, basic and diluted	$	(0.10	)	$	(0.16	)
Weighted average common shares outstanding - basic and fully diluted		23,518,400			16,496,385

Net Sales

Net sales were $19,000 for the three months ended March 31, 2019 and March 31, 2018. Sales were flat due to delayed deployment of ContraPest due to temporary disruptions as we implemented our end user sales and marketing strategy, delays in deployments due to anticipated seasonal reduction in rodent activity during the quarter and the transition to the removal of ContraPest’s ‘restricted use only’ status at the state level

Cost of Sales

Cost of sales was $12,000 for the three months ended March 31, 2019, compared to $19,000 for the three months ended March 31, 2018. Cost of sales were higher in 2018 due to an increase in scrap related to manufacturing scale up activities that did not occur in 2019.

Gross Profit

Gross profit for the three months ended March 31, 2019 was $7,000 or 39.0% of net sales, compared to a gross profit of $0 or 0% of net sales, for the same period in 2018. The increase in gross profit was a direct result of decreased scrap related to scaleup activities.

23

Research and Development Expenses

	Three Months Ended March 31,				Increase  (Decrease)
	2019		2018
	(in thousands)
Direct research and development expenses:
Unallocated expenses:
Personnel related (including stock-based compensation)	$	226	$	386	$	(160	)
Facility-related		63		58		5
Other		175		190		(15	)
Total research and development expenses	$	464	$	634	$	(170	)

Research and development expenses were $464,000 for the three months ended March 31, 2019, compared to $634,000 for the same period in 2018. The $170,000 decrease in research and development expenses was primarily due to a decrease of $160,000 in personnel-related costs, including stock-based compensation expense, due to the classification of certain field support employees to sales and marketing. With more focus on commercialization of ContraPest, it was determined that these certain field support employees previously classified as research and development are now refocused on sales and marketing efforts and thus, reclassified as such.

Facility-related expense increased $5,000 due primarily to facility lease payment escalation. The decrease in other research and development expenses of $15,000 was primarily due to a reclass of other expenses related to certain field support employees to sales and marketing as described above.

We continue to investigate other applications of our core technology to other product candidates, which includes laboratory tests and academic collaborations. We also continue to develop our supply chain, particularly identifying and improving our sourcing of triptolide, a key active ingredient for our product candidates.

Selling, General and Administrative Expenses

Selling, general and administrative expenses were approximately $1.9 million for the three months ended March 31, 2019, as compared to approximately $2.0 million for the three months ended March 31, 2018. The decrease of $124,000 in selling, general and administrative expenses was primarily due to a decrease of $286,000 in net salary costs, a decrease of $30,000 in travel and a decrease in insurance costs of $20,000, offset by a $216,000 increase in professional service fees. The decrease in net salary costs of $286,000 was due to a decrease of stock compensation expenses of $426,000, offset by increased salary and wages due to the reclassification of certain field support employees of $140,000. The increase in professional services expenses was primarily due to increased legal and Board of Directors related expenses. 

Interest Income/Expense, Net

We recorded interest income of $2,000, net, for the three months ended March 31, 2019, as compared to interest expense, net of $16,000 for the same period in 2018. The $18,000 increase in interest incomes was a result of decreased interest on capital leases and promissory notes that expired during the three months ended March 31, 2019 and higher interest income as a result of higher average daily cash balance and interest rates year over year.

Other Income (Expense)

We recorded $5,000 of other expense, net, for the three months ended March 31, 2019, compared to $13,000 of other income for the same period in 2018. The $18,000 net decrease in other income was primarily due to increased expense related to the year-over-year fair market value adjustment of our derivative warrant.  

24

Liquidity and Capital Resources

Since our inception, we have sustained significant operating losses in the course of our research and development activities and commercialization efforts and expect such losses to continue for the near future. We have generated limited revenue to date from product sales, research grants and licensing fees received under our former license agreement with Neogen. In 2017, we began full scale marketing of our first product, ContraPest, and we continue to develop other product candidates, which are in various phases of development. We have funded our operations to date through the sale of equity securities, including convertible preferred stock, common stock and warrants to purchase common stock; debt financing, consisting primarily of convertible notes; and, to a lesser extent, payments received in connection with product sales, research grants and licensing fees. Through March 31, 2019, we had received net proceeds of $61.8 million from our sales of common stock, preferred stock and warrant exercises and issuance of convertible and other promissory notes, and an aggregate of $1.7 million from licensing fees and an aggregate of $0.4 million from product sales. At March 31, 2019, we had an accumulated deficit of $88.2 million and cash and cash equivalents of $2.9 million.

Our ultimate success depends upon the outcome of a combination of factors, including: (i) successful commercialization of ContraPest and ongoing regulatory approval of our other product candidates; (ii) market acceptance, commercial viability and profitability of ContraPest and other products; (iii) the ability to market our products and establish an effective sales force and marketing infrastructure to generate significant revenue; (iv) the success of our research and development; (v) the ability to retain and attract key personnel to develop, operate and grow our business; and (vi) our ability to meet our working capital needs.

Based upon our current operating plan, we expect that cash and cash equivalents at March 31, 2019, in combination with anticipated revenue and additional sales of our equity securities, will be sufficient to fund our current operations for at least the next 12 months. However, if anticipated revenue targets and margin targets are not achieved and we are unable to raise necessary capital through the sale of our securities, we may seek to reduce operating expenses and take other measures that could impair our ability to be successful and operate as a going concern. In any event, we are likely to require additional capital in order to fund our operating losses and research and development activities until we become profitable. We may never achieve profitability or generate positive cash flows, and unless and until we do, we will continue to need to raise capital through equity or debt financing. If such equity or debt financing is not available at adequate levels or on acceptable terms, we may need to delay, limit or terminate commercialization and development efforts.

Additional Funding Requirements

We expect our expenses to increase in connection with our ongoing activities, particularly as we market and focus on sales of ContraPest, and as we advance field studies of our product candidates in development. In addition, we will continue to incur costs associated with operating as a public company. As a result, we anticipate requiring additional funding during 2019.

In particular, we expect to incur substantial and increased expenses as we:

● Work to maximize market acceptance for, and generate sales of, our products;

● Manage the infrastructure for the sales, marketing and distribution of ContraPest and any other product candidates for which we may receive regulatory approval;

● Continue the development of ContraPest and our other product candidates, including engaging in any necessary field studies;

● Seek additional regulatory approvals for ContraPest and our other product candidates;

● Scale up manufacturing processes and quantities to meet future demand of ContraPest and any other product candidates for which we receive regulatory approval;

● Continue product development of ContraPest and advance our research and development activities and advance the research and development programs for other product candidates;

● Maintain, expand and protect our intellectual property portfolio; and

● Add operational, financial and management information systems and personnel, including personnel to support our product development and commercialization efforts and operations as a public company.

25

Cash Flows

The following table summarizes our sources and uses of cash for each of the periods presented:

	Three Months Ended March 31,
	2019			2018
Cash used in operating activities	$	(1,948	)	$	(2,318	)
Cash provided by (used in) investing activities		(11	)		795
Cash (used in) provided by financing activities		(15	)		(50	)
Net increase (decrease) in cash and cash equivalents	$	(1,974	)	$	(1,573	)

Operating Activities.

During the three months ended March 31, 2019, operating activities used $1.9 million of cash, primarily resulting from our net loss of $2.4 million offset by changes in our operating assets and liabilities of $48,000 and by non-cash charges of $368,000, consisting primarily of stock-based compensation, depreciation and amortization. Our net loss was primarily attributable to research and development activities and our selling, general and administrative expenses, as we generated limited product revenue during the period. Net cash used by changes in our operating assets and liabilities for the three months ended March 31, 2019 consisted primarily of a net increase in accrued expenses and accounts payable of $136,000 and a decrease in deposits of $1,000 offset by an increase in inventory of $74,000, an increase in receivables of $11,000, an increase in prepaid expenses of $3,000 and a decrease in deferred rent of $1,000.

26

During the three months ended March 31, 2018, operating activities used $2.3 million of cash, primarily resulting from our net loss of $2.7 million and by changes in our operating assets and liabilities of $455,000, partially offset by non-cash charges of $802,000, consisting primarily of stock-based compensation, depreciation and amortization. Our net loss was primarily attributable to research and development activities and our selling, general and administrative expenses, as we generated limited product revenue during the period. Net cash used by changes in our operating assets and liabilities for the three months ended March 31, 2018 consisted primarily of a decrease in receivables of $9,000 and a decrease in deposits of $2,000 offset by an increase in inventories of $247,000, a net decrease in accrued expenses and accounts payable of $138,000 and an increase in prepaid expenses of $75,000.

Investing Activities.

For the three months ended March 31, 2019, we used $11,000 in net cash related to investing activities due to purchases of property and equipment.

For the three months ended March 31, 2018, we generated $795,000 in net cash related to investing activities consisting of $798,000 of proceeds from the sale of securities held to maturity offset by $3,000 in purchases of property and equipment.

Financing Activities.

During the three months ended March 31, 2019, net cash used by financing activities was $15,000 as a result of payments of $32,000 related to notes payable and $19,000 in payments of capital lease obligations, offset by proceeds from the exercise of warrants of $36,000.

During the three months ended March 31, 2018, net cash used by financing activities was $50,000 as a result of payments of $32,000 related to notes payable and notes payable, related party and $18,000 in payments of capital lease obligations.

Off-Balance Sheet Arrangements

None.

Critical Accounting Policies and Significant Judgments and Estimates

Our financial statements are prepared in accordance with U.S. GAAP. The preparation of our financial statements and related disclosures requires us to make estimates, assumptions and judgments that affect the reported amounts of assets, liabilities, revenue, costs and expenses, and the disclosure of contingent assets and liabilities in our financial statements. We base our estimates on historical experience, known trends and events and various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are described in more detail in Note 2 to our financial statements included elsewhere in this Quarterly Report on Form 10-Q, we believe that the following accounting policies are those most critical to the judgments and estimates used in the preparation of our financial statements.

27

Revenue Recognition

Effective January 1, 2018, the Company adopted ASC 606 — Revenue from Contracts with Customers. Under ASC 606, the Company recognizes revenue from the commercial sales of products, licensing agreements and contracts to perform pilot studies by applying the following steps: (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to each performance obligation in the contract; and (5) recognize revenue when each performance obligation is satisfied. For the comparative periods, revenue has not been adjusted and continues to be reported under ASC 605 — Revenue Recognition. Under ASC 605, revenue is recognized when the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) the performance of service has been rendered to a customer or delivery has occurred; (3) the amount of fee to be paid by a customer is fixed and determinable; and (4) the collectability of the fee is reasonably assured.

There was no impact on the Company’s financial statements as a result of adopting ASC 606 for the three months ended March 31, 2019 and 2018, respectively.

Stock-Based Compensation

We recognize compensation costs related to stock options granted to employees based on the estimated fair value of the awards on the date of grant, net of estimated forfeitures, in accordance with ASC Topic 718 —  Stock Compensation (“ASC 718”). We estimate the grant date fair value of the awards, and the resulting stock-based compensation expense, using the Black-Scholes option-pricing model. The grant date fair value of stock-based awards is expensed on a straight-line basis over the vesting period of the respective award. We account for stock-based compensation arrangements with non-employees using a fair value approach. The fair value of these stock options is measured using the Black-Scholes option-pricing model reflecting the same assumptions as applied to employee options in each of the reported periods, other than the expected life, which is assumed to be the remaining contractual life of the option. The fair value of the stock options granted to non-employees is re-measured as the stock options vest and is recognized in the statements of operations and comprehensive loss during the period the related services are rendered.

We recorded stock-based compensation expense of approximately $252,000 and $698,000 for the three months ended March 31, 2019 and 2018, respectively. We expect to continue to grant stock options and other equity-based awards in the future, and continue to recognize stock-based compensation expense in future periods.

The Black-Scholes option-pricing model requires the use of highly subjective and complex assumptions, which determine the fair value of stock-based awards. If we had made different assumptions, our stock-based compensation expense, net loss and loss per share of common stock could have been significantly different. Our assumptions are as follows:

● Expected term.  The expected term represents the period that the stock-based awards are expected to be outstanding. Our historical share option exercise experience does not provide a reasonable basis upon which to estimate an expected term because of a lack of sufficient data. Therefore, we estimate the expected term by using the simplified method, which calculates the expected term as the average of the time-to-vesting and the contractual life of the options.

● Expected volatility.   Expected volatility is derived from the average historical volatilities of publicly traded companies within our industry that we consider to be comparable to our business over a period approximately equal to the expected term. We intend to continue to consistently apply this process using the same or similar public companies until a sufficient amount of historical information regarding the volatility of our own common stock price becomes available, or unless circumstances change such that the identified companies are no longer similar to us, in which case, more suitable companies whose share prices are publicly available would be utilized in the calculation.

● Risk-free interest rate.  The risk-free interest rate is based on the U.S. Treasury yield in effect at the time of grant for zero coupon U.S. Treasury notes with maturities approximately equal to the expected term.

● Expected dividend.  The expected dividend is assumed to be zero as we have never paid dividends and have no current plans to pay any dividends on our common stock.

● Expected forfeitures.  We use historical data to estimate pre-vesting option forfeitures and record stock-based compensation expense only for those awards that are expected to vest. To the extent actual forfeitures differ from the estimates, the difference will be recorded as a cumulative adjustment in the period that the estimates are revised.

28

Significant Factors, Assumptions and Methodologies Used in Determining Fair Value of Our Common Stock

As noted above, we are required to estimate the fair value of the common stock underlying our stock-based awards when performing the fair value calculations using the Black-Scholes option-pricing model. In the absence of an active market for our common stock, we utilized methodologies in accordance with the framework of the American Institute of Certified Public Accountants’ Technical Practice Aid, Valuation of Privately-Held Company Equity Securities Issued as Compensation, to estimate the fair value of our common stock. In addition, we have conducted periodic assessments of the valuation of our common stock.

The assumptions underlying these valuations represent management’s best estimates, which involve inherent uncertainties and the application of management’s judgment. If we had made different assumptions than those used, the amount of our stock-based compensation expense, net income and net income per share amounts could have been significantly different. The fair value per share of our common stock for purposes of determining stock-based compensation expense is the closing price of our common stock as reported on the applicable grant date. The compensation cost that has been included in the statements of operations and comprehensive loss for all stock-based compensation arrangements is as follows:

	Three Months Ended  December 31,
	2019		2018
	(in thousands)
Selling, general and administrative expenses	$	243	$	669
Research and development expense		9		29
Total stock-based compensation expense	$	252	$	698

The intrinsic value of stock options outstanding as of March 31, 2019 was $0.

Emerging Growth Company Status

The Jumpstart Our Business Startups Act of 2012, or the JOBS Act, permits an “emerging growth company” such as us to take advantage of an extended transition period to comply with new or revised accounting standards applicable to public companies until those standards would otherwise apply to private companies. We have irrevocably elected to “opt out” of this provision and, as a result, we intend to comply with new or revised accounting standards when they are required to be adopted by public companies that are not emerging growth companies.  

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Not applicable.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

We conducted an evaluation (pursuant to Rule 13a-15(b) of the Exchange Act), under the supervision and with the participation of management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e)) as of the end of the period covered by this report.

These disclosure controls and procedures are designed to ensure that information required to be disclosed in our reports that are filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms. Our disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that this information is accumulated and communicated to management, including the principal executive and principal financial officer, or persons performing similar functions, as appropriate, to allow timely decisions regarding required disclosure.

Based on the evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that these disclosure controls and procedures were effective as of the end of the period covered by this report.

Changes in Internal Control over Financial Reporting

There was no change in our internal control over financial reporting that occurred during the quarter ended March 31, 2019, that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

29

PART II. OTHER INFORMATION

Item 1. Legal Proceedings

Note 12 -- Commitments and Contingencies in Part I Financial Information is incorporated by reference into this Item.

Item 1A. Risk Factors

There have been no material changes in the risk factors set forth in Part I, Item 1A, “Risk Factors” in our 2018 Annual Report.

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

INDEX TO EXHIBITS

Exhibit		Filed or Furnished		Incorporated by Reference
Number	Description	Herewith	Form		Filing Date	Exhibit	File No.
31.1	Certification of Chief Executive Officer pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934	X
31.2	Certification of Chief Financial Officer pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934	X
32.1	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	X
32.2	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002	X
101.INS	XBRL Instance Document		10-Q		5/15/2019	101.INS	001-37941
101.SCH	XBRL Taxonomy Extension Schema		10-Q		5/15/2019	101.SCH	001-37941
101.CAL	XBRL Taxonomy Extension Calculation Linkbase		10-Q		5/15/2019	101.CAL	001-37941
101.DEF	XBRL Taxonomy Extension Definition Linkbase		10-Q		5/15/2019	101.DEF	001-37941
101.LAB	XBRL Taxonomy Extension Label Linkbase		10-Q		5/15/2019	101.LAB	001-37941
101.PRE	XBRL Taxonomy Extension Presentation Linkbase		10-Q		5/15/2019	101.PRE	001-37941

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.

	SENESTECH, INC.  (Registrant)
Dated: May 15, 2019	By:	/s/ Loretta P. Mayer, Ph.D.
		Loretta P. Mayer, Ph.D.
		Chair of the Board, Chief Executive Officer and Chief Scientific Officer
Dated: May 15, 2019	By:	/s/ Thomas C. Chesterman
		Thomas C. Chesterman
		Chief Financial Officer and Treasurer

EX-31.1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO 

 RULE 13(a)-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

I, Loretta P. Mayer, Ph.D., certify that: 

1. I have reviewed this Quarterly Report on Form 10-Q of SenesTech, 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.

Dated: May 15, 2019	/s/ Loretta P. Mayer, Ph.D.
	Loretta P. Mayer Ph.D.
	Chair of the Board, Chief Executive Officer and Chief Scientific Officer

EX-31.2

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO 

 RULE 13(a)-14(a) UNDER THE SECURITIES EXCHANGE ACT OF 1934

I, Thomas C. Chesterman, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of SenesTech, 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.

Dated: May15, 2019	/s/ Thomas C. Chesterman
	Thomas C. Chesterman
	Chief Financial Officer and Treasurer

EX-32.1

Exhibit 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. SECTION 1350

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, I, Loretta P. Mayer Ph.D., Chair of the Board, Chief Executive Officer and Chief Scientific Officer of SenesTech, Inc., certify that:

1. To my knowledge, this report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. To my knowledge, the information contained in this report fairly presents, in all material respects, the financial condition and results of operations of SenesTech, Inc.

Dated: May 15, 2019	/s/ Loretta P. Mayer, Ph.D.
	Loretta P. Mayer, Ph.D.
	Chair of the Board, Chief Executive Officer and Chief Scientific Officer

EX-32.2

Exhibit 32.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, I, Thomas C. Chesterman, Chief Financial Officer and Treasurer of SenesTech, Inc., certify that:

1. To my knowledge, this report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. To my knowledge, the information contained in this report fairly presents, in all material respects, the financial condition and results of operations of SenesTech, Inc.

Dated: May 15, 2019	/s/ Thomas C. Chesterman
	Thomas C. Chesterman
	Chief Financial Officer and Treasurer

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2019	May 15, 2019
Document And Entity Information
Entity Registrant Name	SenesTech, Inc.
Entity Central Index Key	0001680378
Trading Symbol	SNES
Document Type	10-Q
Document Period End Date	Mar. 31, 2019
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Reporting Status Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Common Stock, Shares Outstanding		24,993,279
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2019

XML

CONDENSED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash	$ 2,946	$ 4,920
Accounts receivable	150	139
Prepaid expenses	345	342
Inventory	1,335	1,261
Deposits	8	9
Total current assets	4,784	6,671
Right to use asset-operating leases	76
Property and equipment, net	983	1,083
Total assets	5,843	7,754
Current liabilities:
Short-term debt	202	219
Accounts payable	272	173
Accrued expenses	776	771
Total current liabilities	1,250	1,163
Long-term debt, net	227	261
Operating lease liability	76
Common stock warrant liability	5
Deferred rent	15	16
Total liabilities	1,573	1,440
Commitments and contingencies (See note 12)
Stockholders' equity:
Common stock, $0.001 par value, 100,000,000 shares authorized, 23,560,864 and 23,471,999 shares issued and outstanding at March 31, 2019 and December 31, 2018, respectively	24	24
Additional paid-in capital	92,448	92,128
Accumulated deficit	(88,202)	(85,838)
Total stockholders' equity	4,270	6,314
Total liabilities and stockholders' equity	$ 5,843	$ 7,754

XML

CONDENSED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares	Mar. 31, 2019	Dec. 31, 2018	Nov. 10, 2015	Oct. 31, 2015
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001	$ 0.001	$ .001
Common stock, authorized	100,000,000	100,000,000	100,000,000	100,000
Common stock, issued	23,560,864	23,471,999
Common stock, outstanding	23,560,864	23,471,999

XML

CONDENSED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
Net Sales	$ 19	$ 19
Cost of sales	12	19
Gross profit	7
Operating expenses:
Research and development	464	634
Selling, general and administrative	1,904	2,028
Total operating expenses	2,368	2,662
Net operating loss	(2,361)	(2,662)
Other income (expense):
Interest income	15	6
Interest expense	(13)	(22)
Other income (expense)	(5)	13
Total other income (expense)	(3)	(3)
Net loss and comprehensive loss	$ (2,364)	$ (2,665)
Loss per share attributable to common shareholders, basic and diluted (in dollars per share)	$ (0.10)	$ (0.16)
Weighted average common shares outstanding - basic and fully diluted (in shares)	23,518,400	16,496,385

XML

STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (DEFICIT) (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-In Capital [Member]	Stock Subscription Payable [Member]	Accumulated Deficit [Member]	Total
Balance at beginning at Dec. 31, 2017	$ 16	$ 81,103		$ (73,597)	$ 7,522
Balance at beginning (in shares) at Dec. 31, 2017	16,404,195
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for services	$ 1	27			28
Issuance of common stock for services (in shares)	94,151
Stock-based compensation		670			670
Issuance of common stock upon cashles exercise of stock options
Issuance of common stock upon cashless exercise of stock options (in shares)	13,900
Stock subscribed but not issued		(8)	8
Net loss				(2,665)	(2,665)
Balance at ending at Mar. 31, 2018	$ 17	81,792	8	(76,262)	5,555
Balance at ending (in shares) at Mar. 31, 2018	16,512,246
Balance at beginning at Dec. 31, 2018	$ 24	92,128		(85,838)	6,314
Balance at beginning (in shares) at Dec. 31, 2018	23,471,999
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for services		32			32
Issuance of common stock for services (in shares)	38,580
Stock-based compensation		252			252
Issuance of common stock upon exercise of warrants		36			36
Issuance of common stock upon exercise of warrants (in shares)	31,811
Issuance of common stock upon cashles exercise of stock options
Issuance of common stock upon cashless exercise of stock options (in shares)	18,474				18,474
Net loss				(2,364)	$ (2,364)
Balance at ending at Mar. 31, 2019	$ 24	$ 92,448		$ (88,202)	$ 4,270
Balance at ending (in shares) at Mar. 31, 2019	23,560,864

XML

CONDENSED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (2,364)	$ (2,665)
Adjustments to reconcile net loss to net cash used in operating activities:
Gain on investments		(18)
Bad debts expense		5
Depreciation and amortization	111	117
Stock-based compensation	252	698
Loss on remeasurement of common stock warrant liability	5
(Increase) decrease in current assets:
Accounts receivable	(11)	9
Prepaid expenses	(3)	(75)
Inventory	(74)	(247)
Deposits	1	2
Increase (decrease) in current liabilities:
Accounts payable	99	(22)
Accrued expenses	37	(116)
Deferred rent	(1)	(6)
Net cash used in operating activities	(1,948)	(2,318)
CASH FLOWS FROM INVESTING ACTIVITIES
Proceeds received on sale of securities		798
Purchase of property and equipment	(11)	(3)
Net cash provided by (used in) investing activities	(11)	795
CASH FLOWS FROM FINANCING ACTIVITIES
Repayments of notes payable, net	(32)	(26)
Repayments of notes payable, related parties		(6)
Repayments of capital lease obligations	(19)	(18)
Proceeds from the exercise of warrants	36
Net cash provided by financing activities	(15)	(50)
NET CHANGE IN CASH	(1,974)	(1,573)
CASH AT BEGINNING OF PERIOD	4,920	2,101
CASH AT END OF PERIOD	2,946	528
SUPPLEMENTAL INFORMATION:
Interest paid	13	22
Income taxes paid
NON-CASH INVESTING AND FINANCING ACTIVITIES:
Purchases of equipment under capital lease obligations		10
Common stock issued on accrued bonus	$ 32

XML

Organization and Description of Business

3 Months Ended

Mar. 31, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Description of Business

Note 1 - Organization and Description of Business

SenesTech, Inc. (referred to in this report as “SenesTech,” the “Company,” “we” or “us”) was formed in July 2004 and incorporated in the state of Nevada. The Company subsequently reincorporated in the state of Delaware in November 2015. Our corporate headquarters is in Flagstaff, Arizona. We have developed and are commercializing a global, proprietary technology for managing animal pest populations, initially rat populations, through fertility control.

Although a myriad of tools are available to fight rat infestations, communities continue to face challenges in controlling today’s infestations. Infestations result in incredible infrastructure damage, as well as pose additional risks to the health and food security of communities. In addition to these challenges, the pest management industry and Pest Management Professionals (PMPs) are being increasingly asked for new solutions to help solve the problem. With growing concerns about rat resistance to rodenticides and a growing interest in non-lethal options, it is becoming increasingly important for PMPs to have new tools at their disposal. Our goal is to provide customers with not only a solution to combat their most difficult infestations, but also offer a non-lethal option to serve customers that are looking to decrease or remove the amount of poison used in their pest management programs.

Our first fertility control product, ContraPest, is a liquid bait containing the active ingredients 4-vinylcyclohexene diepoxide (VCD) and triptolide. When consumed, ContraPest targets reproduction, limiting fertility in male and female rats beginning with the first breeding cycle following consumption. ContraPest is being marketed for use in controlling rat populations, specifically Norway and roof rats. On August 23, 2015, the United States Environmental Protection Agency (EPA) granted registration approval for ContraPest as a Restricted Product Due to Professional Expertise (referred to in this report as a “Restricted Use designation”), effective August 2, 2016. On October 18, 2018, the EPA approved the removal of the Restricted Use designation. We believe ContraPest is the first and only non-lethal, fertility control product approved by the EPA for the management of rodent populations.

In addition to the EPA registration of ContraPest in the United States, we must obtain registration from the various state regulatory agencies prior to selling in each state. As of the date of this report, we have received registration for ContraPest in all 50 states and the District of Columbia, 35 of which have approved the removal of the Restricted Use designation.

We expect to continue to pursue regulatory approvals and amendments to existing registration in the United States for ContraPest, and if ContraPest begins to generate sufficient revenue, regulatory approvals for any additional jurisdictions beyond the United States. The Company also continues to develop other potential additional fertility control and animal health products for additional species.

Potential Need for Additional Capital

Since our inception, we have sustained significant operating losses in the course of our research and development activities and expect such losses to continue for the near future. We have generated limited revenue to date from product sales, research grants and licensing fees received under our former license agreement with Neogen. In 2017, we began to prepare and launch commercialization of our first product, ContraPest. We have primarily funded our operations to date through the sale of equity securities, including convertible preferred stock, common stock and warrants to purchase common stock. Public equity sales include

(i) an initial public offering of 1,875,000 shares of our common stock on December 8, 2016 with warrants to purchase an additional 187,500 shares issued to Roth Capital Partners, LLC with an exercise price of $9.60 per share, as underwriter,

(ii) a public offering on November 21, 2017 of 5,860,000 shares of our common stock at $1.00 per share with warrants issued to investors to purchase an additional 4,657,500 shares of our common stock with an initial exercise price of $1.50 per share that subsequently adjusted downward to $0.95 per share pursuant to antidilution price protection contained within those warrants, and warrants issued to Roth Capital Partners, LLC, as underwriter, to purchase an additional 945,000 shares with an exercise price of $1.50 per share,

(iii) a private placement of warrants to purchase 1,133,909 shares of common stock in June 2018 with an exercise price of $1.82 per share in connection with an inducement agreement with a holder of outstanding warrants issued in November 2017 to exercise its original warrant representing 1,133,909 shares at an exercise price of $1.50 per share; and

(iv) a rights offering in August 2018 (the “Rights Offering”), where we accepted subscriptions for 5,357,052 units for a purchase price of $1.15 per unit, with each unit consisting of one share of our common stock and one warrant, with each warrant exercisable for one share of our common stock at an exercise price of $1.15 per share, and warrants issued to an affiliate of Maxim Group, LLC, as dealer-manager, to purchase an additional 267,853 shares at $1.725 per share

(v) issuance of 31,811 shares of common stock as a result of the exercise of warrants in March 2019 at an exercise price of $1.15 per warrant.

We have also raised capital through debt financing, consisting primarily of convertible notes; and, to a lesser extent, payments received in connection with product sales, research grants and licensing fees.

Through March 31, 2019, we had received net proceeds of $61.8 million from our sales of common stock, preferred stock and warrant exercises and issuance of convertible and other promissory notes, an aggregate of $1.7 million from licensing fees and an aggregate of $0.4 million in net product sales. At March 31, 2019, we had an accumulated deficit of $88.2 million and cash and cash equivalents of $2.9 million.

Our ultimate success depends upon the outcome of a combination of factors, including: (i) successful commercialization of ContraPest and ongoing regulatory approvals of our other product candidates, (ii) market acceptance, commercial viability and profitability of ContraPest and other products; (iii) the ability to market our products and establish an effective sales force and marketing infrastructure to generate significant revenue; (iv) the success of our research and development; (v) our ability to retain and attract key personnel to develop, operate and grow our business; and (vi) our ability to meet our working capital needs.

Based upon our current operating plan, we expect that cash and cash equivalents at March 31, 2019, in combination with anticipated revenue and additional sales of our equity securities, will be sufficient to fund our current operations for at least the next 12 months. However, if anticipated revenue targets and margin targets are not achieved and we are unable to raise necessary capital through the sale of our securities, we may seek to reduce operating expenses and take other measures that could impair our ability to be successful and operate as a going concern. In any event, we are likely to require additional capital in order to fund our operating losses and research and development activities until we become profitable. We may never achieve profitability or generate positive cash flows, and unless and until we do, we will continue to need to raise capital through equity or debt financing. If such equity or debt financing is not available at adequate levels or on acceptable terms, we may need to delay, limit or terminate commercialization and development efforts.

Basis of Presentation

The accompanying unaudited condensed financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) for interim financial reporting. Certain information and footnote disclosures normally included in the annual financial statements prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations. In the Company’s opinion, the unaudited condensed financial statements include all material adjustments, all of which are of a normal and recurring nature, necessary to present fairly the Company’s financial position as of March 31, 2019, the Company’s operating results for the three months ended March 31, 2019 and 2018, and the Company’s cash flows for the three months ended March 31, 2019 and 2018. The accompanying financial information as of December 31, 2018 is derived from audited financial statements. Interim results are not necessarily indicative of results for a full year. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with the Company’s Annual Report on Form 10-K, as amended by Form 10-K/A, for the year ended December 31, 2018, both filed with the SEC on March 29, 2019. All amounts shown in these financial statements and accompanying notes are in thousands, except percentages and per share and share amounts.

XML

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Note 2 - Summary of Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts and classification of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. The significant estimates in the Company’s financial statements include the valuation of preferred stock, common stock and related warrants, and other stock-based awards. Actual results could differ from such estimates.

Reclassifications

Certain prior year amounts have been reclassified to conform to the current period presentation. These reclassifications had no material impact on net earnings, financial position or cash flows.

Accounts Receivable

Accounts receivable consist primarily of trade receivables. The Company provides an allowance for doubtful trade receivables equal to the estimated uncollectible amounts. That estimate is based on historical collection experience, current economic and market conditions and a review of the current status of each customer’s trade accounts receivable. The allowance for doubtful trade receivables was less than $1 at March 31, 2019 and at December 31, 2018.

Inventories

Inventories are stated at the lower of cost or market value, using the first-in, first-out convention. Inventories consist of raw materials, work in progress and finished goods.

Components of inventory are:

	March 31,			December 31,
	2019			2018
Raw materials	$	1,087		$	1,111
Work in progress		1			—
Finished goods		251			154
Total inventory		1,339			1,265
Less:
Reserve for obsolete		(4	)		(4	)
Total net inventory	$	1,335		$	1,261

Prepaid Expenses

Prepaid expenses consist primarily of payments made for director and officer insurance, director compensation, rent, legal and inventory purchase deposits and seminar fees to be expensed in the current year.

Property and Equipment

Property and equipment are stated at cost less accumulated depreciation. Equipment held under capital leases are stated at the present value of minimum lease payments less accumulated amortization.

Depreciation on property and equipment is computed using the straight-line method over the estimated useful lives of the respective assets. The cost of leasehold improvements is amortized over the life of the improvement or the term of the lease, whichever is shorter. Equipment held under capital leases is amortized over the shorter of the lease term or estimated useful life of the asset. The Company incurs repair and maintenance costs on its major equipment, which are expensed as incurred.

Impairment of Long-Lived Assets

Long-lived assets, such as property and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require long-lived assets or asset groups to be tested for possible impairment, the Company compares the undiscounted cash flows expected to be generated from the use of the asset or asset group to its carrying amount. If the carrying amount of the long-lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment charge is recognized to the extent that the carrying amount exceeds its fair value. Fair value is determined through various valuation techniques, such as discounted cash flow models and the use of third-party independent appraisals. The Company has not recorded an impairment of long-lived assets since its inception.

Revenue Recognition

Effective January 1, 2018, the Company adopted ASC 606 — Revenue from Contracts with Customers. Under ASC 606, the Company recognizes revenue from the commercial sales of products, licensing agreements and contracts to perform pilot studies by applying the following steps: (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to each performance obligation in the contract; and (5) recognize revenue when each performance obligation is satisfied. For the comparative periods, revenue has not been adjusted and continues to be reported under ASC 605 — Revenue Recognition. Under ASC 605, revenue is recognized when the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) the performance of service has been rendered to a customer or delivery has occurred; (3) the amount of the fee to be paid by a customer is fixed and determinable; and (4) the collectability of the fee is reasonably assured. The performance obligations identified by the Company under Accounting Standards Codification (“ASC”) Topic 606, Revenue From Contracts With Customers, are straightforward and similar to the unit of account and performance obligation determination under ASC Topic 605, Revenue Recognition. There was no impact on the Company’s financial statements as a result of adopting ASC 606 for the three months ended March 31, 2019 and 2018, respectively.

The Company recognizes revenue when it leaves their dock at a fixed selling price and payment terms of 30 to 120 days from invoicing. The Company recognizes other revenue earned from pilot studies upon the performance of specific services under the respective service contract.

The Company derives revenue primarily from commercial sales of products.

Research and Development

Research and development costs are expensed as incurred. Research and development expenses primarily consist of salaries and benefits for research and development employees, stock-based compensation, consulting fees, lab supplies, costs incurred related to conducting scientific trials and field studies, and regulatory compliance costs. Also, included in research and development expenses is an allocation of facilities related costs, including depreciation of research and development equipment.

 Stock-based Compensation

Employee stock-based awards, consisting of restricted stock units and stock options expected to be settled in shares of the Company’s common stock, are recorded as equity awards. The grant date fair value of these awards is measured using the Black-Scholes option pricing model. The Company expenses the grant date fair value of its stock options on a straight-line basis over their respective vesting periods. Performance-based awards are expensed over the performance period when the related performance goals are probable of being achieved.

For equity instruments issued to non-employees, the stock-based consideration is measured using a fair value method. The measurement of the stock-based compensation is subject to re-measurement as the underlying equity instruments vest.

The stock-based compensation expense recorded for the three months ended March 31, 2019 and 2018, is as follows:

	Three Months Ended March 31,
	2019		2018
Research and development	$	9	$	29
Selling, general and administrative		243		669
Total stock-based compensation expense	$	252	$	698

See Note 11 for additional discussion on stock-based compensation.

Income Taxes

Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax bases of assets and liabilities and net operating loss carryforwards using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in the period that includes the enactment date.

The Company records net deferred tax assets to the extent it believes these assets will more likely than not be realized. These deferred tax assets are subject to periodic assessments as to recoverability and if it is determined that it is more likely than not that the benefits will not be realized, valuation allowances are recorded which would increase the provision for income taxes. In making such determination, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies and recent financial operations. The Company currently maintains a full allowance against its deferred tax assets.

The Company applies a more-likely-than-not recognition threshold for all tax uncertainties. Only those benefits that have a greater than fifty percent likelihood of being sustained upon examination by the taxing authorities are recognized. Based on its evaluation, the Company has concluded there are no significant uncertain tax positions requiring recognition in its financial statements.

The Company recognizes interest and/or penalties related to uncertain tax positions in income tax expense. There are no uncertain tax positions as of March 31, 2019 or December 31, 2018 and as such, no interest or penalties were recorded in income tax expense.

Comprehensive Loss

Net loss and comprehensive loss were the same for all periods presented; therefore, a separate statement of comprehensive loss is not included in the accompanying financial statements.

Loss Per Share Attributable to Common Stockholders

Basic loss per share attributable to common stockholders is calculated by dividing the net loss attributable to common stockholders by the weighted average number of common shares outstanding during the period. Diluted loss per share attributable to common stockholders is computed by dividing the loss attributable to common stockholders by the weighted average number of common shares and potentially dilutive securities outstanding for the period determined using the treasury stock and if-converted methods. For purposes of the computation of diluted loss per share attributable to common stockholders, common stock purchase warrants, and common stock options are considered to be potentially dilutive securities but have been excluded from the calculation of diluted loss per share attributable to common stockholders because their effect would be anti-dilutive given the net loss reported for the three months ended March 31, 2019 and 2018. Therefore, basic and diluted loss per share attributable to common stockholders are the same for each period presented.

The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted loss per share attributable to common stockholders (in common stock equivalent shares):

	March 31,
	2019		2018
Common stock purchase warrants		11,195,010		6,431,785
Restricted stock unit		105,841		237,885
Common stock options		1,635,889		1,629,967
Total		12,936,740		8,299,637

Adoption of New Accounting Standards:

In May 2014 the FASB issued ASU 2014-09, Revenue from Contracts with Customers. Since ASU 2014-09 was issued, several additional ASUs have been issued to clarify various elements of the guidance. These standards provide guidance on recognizing revenue, including a five-step model to determine when revenue recognition is appropriate. The standard requires that an entity recognize revenue to depict the transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Effective January 1, 2018, the Company adopted ASU 2014-09, “Revenue from Contracts with Customers” using the modified retrospective method to all contracts that were not completed as of the date of adoption. The results of operations for reported periods after January 1, 2018 are presented under this amended guidance, while prior period amounts are reported in accordance with ASC 605 — Revenue Recognition. There was no material impact on our financial position, results of operations, or cash flows. See Note 2 — Summary of Significant Accounting Policies — Revenue Recognition.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This standard affects the accounting for equity instruments, financial liabilities under the fair value option and the presentation and disclosure requirements of financial instruments. ASU 2016-01 is effective the first quarter of 2018. The Company has adopted the provisions of ASU 2016-01 on its financial statements. There was no material impact on our financial position, results of operations, or cash flows.

In February 2016, the FASB issued ASU 2016-02, Leases (“ASU 2016-02”). This standard amends various aspects of existing accounting guidance for leases, including the recognition of a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. This standard also introduces new disclosure requirements for leasing arrangements. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years for public business entities. Early adoption was permitted, and the new standard had been adopted using a modified retrospective approach and provides for certain practical expedients.

On January 1, 2019, the Company adopted the new leasing standard and all related amendments. The Company elected the optional transition method provided by the FASB in ASU 2018-11, Leases (Topic 842): Targeted Improvements, and as a result, has not restated its condensed consolidated financial statements for prior periods presented. The Company has elected the practical expedients upon transition to retain the lease classification and initial direct costs for any leases that existed prior to adoption. The Company has also not reassessed whether any contracts entered into prior to adoption are leases.

The standard did not have a material impact on the Company’s Condensed Consolidated Statements of Comprehensive Income. The cumulative effect of the changes made to the Company’s Consolidated Balance Sheet as of January 1, 2019 for the adoption of the new leasing standard was as follows:

	Balance @ December 31, 2018		Adjustment Due to ASC 842			Balance @ January 1, 2019
Right to Use Asset - Long Term		—	$	87		$	87
Lease Liability – Long Term		—	($	87	)	($	87	)

The Company determines if an arrangement is a lease at lease inception. Operating lease right-of-use (ROU) assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company’s lease contracts do not include an implicit rate, the Company uses its incremental borrowing rate based on information available at commencement date in determining the present value of future payments. The incremental borrowing rate is estimated to approximate the interest rate on a collateralized basis with similar terms and payments, and in economic environments where the leased asset is located. The operating lease ROU asset also includes any initial direct costs and lease payments made prior to lease commencement and excludes lease incentives incurred.

The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Operating lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. The Company has certain lease agreements that contain both lease and non-lease components, which it has elected to account for as a single lease component for all asset classes

Accounting Standards Issued but Not Yet Adopted

In August 2018, the FASB issued authoritative guidance intended to address a customer’s accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. This guidance aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The guidance also requires presentation of the capitalized implementation costs in the statement of financial position and in the statement of cash flows in the same line item that a prepayment for the fees of the associated hosting arrangement would be presented, and the expense related to the capitalized implementation costs to be presented in the same line item in the statement of operations as the fees associated with the hosting element (service) of the arrangement. This guidance is effective for annual periods beginning after December 15, 2019, including interim periods within those annual periods, with early adoption permitted. We are currently evaluating the potential impact on our financial position, results of operations and statement of cash flows upon adoption of this guidance, which will result in the change in presentation of capitalized implementation costs related to hosting arrangements from properties to other assets on the consolidated balance sheet, as well as the expense related to such costs no longer being classified as depreciation expense and cash flows related to those costs no longer being presented as investing activities.

Other than the items noted above, there have been no new accounting pronouncements not yet effective or adopted in the current year that we believe have a significant impact, or potential significant impact, to our unaudited condensed consolidated interim financial statements.

XML

Fair Value Measurements

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 3 - Fair Value Measurements

The Company issued common stock warrants to purchase shares of common stock in June of 2015 (see Note 11 — Stock-based Compensation for more details) that contain a cash settlement provision resulting in a common stock warrant liability that is revalued at the end of each reporting period.

We value these warrant derivatives at fair value. The accounting guidance for fair value, among other things, establishes a consistent framework for measuring fair value and expands disclosure for each major asset and liability category measured at fair value on either a recurring or nonrecurring basis. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the reporting date. The framework for measuring fair value consists of a three-level valuation hierarchy that prioritizes the inputs to valuation techniques used to measure fair value based upon whether such inputs are observable or unobservable. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect market assumptions made by the reporting entity. The three-level hierarchy for the inputs to valuation techniques is briefly summarized as follows: 

Level 1—Inputs are unadjusted, quoted prices in active markets for identical assets or liabilities at the measurement date;

Level 2—Inputs are observable, unadjusted quoted prices in active markets for similar assets or liabilities, unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities; and

Level 3—Unobservable inputs that are significant to the measurement of the fair value of the assets or liabilities that are supported by little or no market data.

An asset’s or liability’s fair value measurement level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Valuation techniques used need to maximize the use of observable inputs and minimize the use of unobservable inputs.

Assets and liabilities measured at fair value are based on one or more of the following three valuation techniques:

A. Market approach: Prices and other relevant information generated by market transactions involving identical or comparable  assets or liabilities.

B. Cost approach: Amount that would be required to replace the service capacity of an asset (replacement cost).

C. Income approach: Techniques to convert future amounts to a single present amount based upon market expectations,  including present value techniques, option-pricing and excess earnings models. 

The Company’s common stock warrant liabilities are classified as Level 3 because there is limited activity or less transparency around the inputs to valuation.

Items Measured at Fair Value on a Recurring Basis 

The following table sets forth the Company’s financial instruments that were measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands): 

	March 31, 2019
	Level 1		Level 2		Level 3		Total
Financial Liabilities:
Common stock warrant liability (1)	$	—	$	—	$	5	$	5
Total	$	—	$	—	$	5	$	5
	December 31, 2018
		Level 1		Level 2		Level 3		Total
Financial Assets:
Money market funds	$	—	$	—	$	—	$	—
Corporate fixed income debt securities		—		—		—		—
Total	$	3	$	—	$	—	$	—
Financial Liabilities:
Common stock warrant liability (1)	$	—	$	—	$	—	$	—
Total	$	—	$	—	$	—	$	—

(1) The change in the fair value of the common stock warrant and convertible notes payable for the three months ended March 31, 2019 was recorded as a decrease to other income (expense) and interest expense of $5, in the statements of operations and comprehensive loss.

Financial Instruments Not Carried at Fair Value

The carrying amounts of the Company’s financial instruments, including accounts payable and accrued liabilities, approximate fair value due to their short maturities. The estimated fair value of the convertible notes and other notes, not recorded at fair value, are recorded at cost or amortized cost which was deemed to estimate fair value.

XML

Credit Risk

3 Months Ended

Mar. 31, 2019

Risks and Uncertainties [Abstract]

Credit Risk

Note 4 - Credit Risk

The Company is potentially subject to concentrations of credit risk in its accounts receivable. Credit risk with respect to receivables is limited due to the number of companies comprising the Company’s customer base. Although the Company is directly affected by the financial condition of its customers, management does not believe significant credit risks exist at March 31, 2019 or December 31, 2018. The Company does not require collateral or other securities to support its accounts receivable.

XML

Prepaid Expenses

3 Months Ended

Mar. 31, 2019

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Prepaid Expenses

Note 5 - Prepaid Expenses

Prepaid expenses consist of the following:

	March 31,		December 31,
	2019		2018
Director compensation	$	50	$	100
Director and officer insurance		146		121
NASDAQ fees		41
Legal retainer		25		25
Marketing programs and conferences		50		53
Professional services retainer		12		8
Rent		19		19
Equipment service deposits		2		3
Engineering, software licenses and other		—		13
Total prepaid expenses	$	345	$	342

XML

Property and Equipment

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Property and Equipment

Note 6 - Property and Equipment

Property and equipment, net consist of the following:

		March 31,			December 31,
	Useful Life	2019			2018
Research and development equipment	5 years	$	1,554		$	1,552
Office and computer equipment	3 years		751			742
Autos	5 years		54			54
Furniture and fixtures	7 years		37			37
Leasehold improvements	*		283			283
			2,679			2,668
Less accumulated depreciation and amortization			(1,696	)		(1,585	)
Total		$	983		$	1,083

* Shorter of lease term or estimated useful life

Depreciation and amortization expense was approximately $111 and $117 for the three months ended March 31, 2019 and 2018, respectively.

XML

Accrued Expenses

3 Months Ended

Mar. 31, 2019

Payables and Accruals [Abstract]

Accrued Expenses

Note 7 - Accrued Expenses

Accrued expenses consist of the following:

	March 31,		December 31,
	2019		2018
Compensation and related benefits	$	259	$	479
Accrued Litigation		507		269
Board Compensation		—		23
Other		10		—
Total accrued expenses	$	776	$	771

XML

Borrowings

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Borrowings

Note 8 - Borrowings

A summary of the Company’s borrowings, including capital lease obligations, is as follows:

	March 31,			December 31,
Short-term debt:	2019			2018
Current portion of long-term debt		202			219
Total short-term debt	$	202		$	219
Long-term debt:
Capital lease obligations	$	212		$	232
Other promissory notes		217			248
Total		429			480
Less: current portion of long-term debt		(202	)		(219	)
Total long-term debt	$	227		$	261

Capital Lease Obligations 

Capital lease obligations are for computer and lab equipment leased through GreatAmerica Financial Services, Thermo Fisher Scientific, Navitas Credit Corp. and ENGS Commercial Finance Co. These capital leases expire at various dates through July 2023 and carry interest rates ranging from 6.4% to 11.6%.

Other Promissory Notes

Also included in the table above are three notes payable to Direct Capital, one note to M2 Financing and one note to Fidelity Capital, all for the financing of fixed assets. These notes expire at various dates through June 2022 and carry interest rates ranging from 4.3% to 13.8%.

XML

Common Stock Warrants and Common Stock Warrant Liability

3 Months Ended

Mar. 31, 2019

Warrants and Rights Note Disclosure [Abstract]

Common Stock Warrants and Common Stock Warrant Liability

Note 9 - Common Stock Warrants and Common Stock Warrant Liability

The table summarizes the common stock warrant activity as of March 31, 2019 as follows:

Common Stock Warrants	Number of Warrants			Date  Issued	Term		Exercise Price
Outstanding at December 31, 2017		6,431,785
Warrants issued		1,133,909		June 2018		5 Years	$	1.82
Common Stock Offering Warrants Issued		5,357,052		August 2018		5 Years	$	1.15	(1)
Common Stock Offering - Dealer Manager Warrants		267,853		August 2018		5 Years	$	1.725
Warrants exercised		(1,475,659	)
Expired Warrants		(488,119	)
Outstanding at December 31, 2018		11,226,821
Warrants Exercised		(31,811	)	August 2018			$	1.15
Outstanding at March 31, 2019		11,195,010

(1) The common stock warrants issued in November 2017 with an initial exercise price of $1.50 per share adjusted downward to $0.95 per share effective July 24, 2018 in connection with our Rights Offering, and may be subject to further downward adjustments, pursuant to antidilution price adjustment protection contained within those warrants.

On November 21, 2017, the Company issued a total of 4,657,500 detachable common stock warrants issued with the second public offering of 5,860,000 shares of its common stock at $1.00 per share. The common stock warrant is exercisable until five years from the date of grant. The common shares of the Company’s stock and detachable warrants exist independently as separate securities. As such, the Company estimated the fair value of the common stock warrants, exercisable at $1.50 per share, to be $661 using a lattice model based on the following significant inputs: Common stock price of $1.00; comparable company volatility of 73.8%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 1.87. The initial exercise price of these warrants was $1.50 per share, which adjusted downward to $1.47 on July 24, 2018, the record date of the Right’s Offering and downward to $0.95 per share on August 13, 2018, the date of the Rights Offering, pursuant to antidilution price adjustment protection contained within these warrants. Per guidance of ASC 260, the Company recorded a deemed dividend of $333 on the 3,181,841 unexercised warrants that contained this antidilution price adjustment protection provision and was calculated as the difference between the fair value of the warrants immediately prior to downward exercise price adjustment and immediately after the adjustment using a Black Scholes model based on the following significant inputs: On July 24, 2018: Common stock price of $1.38; comparable company volatility of 72.4%; remaining term 4.33 years; dividend yield of 0% and risk-free interest rate of 2.83. On August 13, 2018: Common stock price of $1.02; comparable company volatility of 74.0%; remaining term 4.25 years; dividend yield of 0% and risk-free interest rate of 2.75.

On June 20, 2018, the Company entered into an agreement with a holder of 1,133,909 of the November 2017 warrants to exercise its original warrant representing 1,133,909 shares of Common Stock for cash at the $1.50 exercise price for gross proceeds of $1.7 million and the Company issued to holder a new warrant to purchase 1,133,909 shares of Common Stock at an exercise price of $1.82 per share. The new warrant did not contain the antidilution price adjustment protection that was contained within the exercised warrants. In June 2018, the Company recorded stock compensation expense of $1.7 million representing the fair value of the of 1,133,909 inducement warrants issued. The Company estimated the fair value of the common stock warrants, exercisable at $1.82 per share, to be $1.7 million using a Black Scholes model based on the following significant inputs: Common stock price of $2.11; comparable company volatility of 72.6%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 2.8%. Also, in June 2018, an additional 341,750 of the November 8, 2017 warrants that were in the money at the time of exercise, were exercised for gross proceeds of $513.

On August 13, 2018, in connection with a Rights Offering of 5,357,052 shares of its common stock, the Company issued 5,357,052 warrants to purchase shares of its common stock at an exercise price of $1.15 per share. The Company estimated the fair value of the common stock warrants, exercisable at $1.15 per share, to be $3.6 million using a Monte Carlo model based on the following significant inputs: common stock price of $0.94; comparable company volatility of 159.0%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 2.77%.

In connection with the closing of the Rights Offering, the Company issued a warrant to purchase 267,853 shares of common stock to Maxim Partners LLC, an affiliate of the dealer-manager of the Rights Offering. The Company estimated the fair value of the common stock warrants, exercisable at $1.725 per share, to be $169 using a using a Monte Carlo model based on the following significant inputs: common stock price of $0.94; comparable company volatility of 159.0%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 2.77%.

Common Stock Warrant Issued to Underwriter of Common Stock Offering

In November 2017, the Company issued to Roth Capital Partners, LLC, as underwriter, a warrant to purchase 945,000 shares of common stock at an exercise price of $1.50 per share as consideration for providing services in connection with our common stock offering. The warrant was fully vested and exercisable on the date of issuance. The common stock warrant is exercisable until five years from the date of grant. The Company estimated the fair value of the common stock warrants, exercisable at $1.50 per share, to be $134 using a lattice model based on the following significant inputs: Common stock price of $1.00; comparable company volatility of 73.8%; remaining term 5 years; dividend yield of 0% and risk-free interest rate of 1.87%.

University of Arizona Common Stock Warrant

In connection with the June 2015 amended and restated exclusive license agreement with the University of Arizona (“University”), the Company issued to the University a common stock warrant to purchase 15,000 shares of common stock at an exercise price of $7.50 per share. The warrant was fully vested and exercisable on the date of grant, and expires, if not exercised, five years from the date of grant. In the event of a “terminating change” of the Company, as defined in the warrant agreement, the warrant holder would be paid in cash the aggregate fair market value of the underlying shares immediately prior to the consummation of the terminating change event. Due to the cash settlement provision, the derivative warrant liability was recorded at fair value and is revalued at the end of each reporting period. The changes in fair value are reported in other income (expense) in the statements of operations and comprehensive loss. The estimated fair value of the derivative warrant liability was $53 at the date of grant.

The estimated fair value of the derivative warrant liability was $5 at March 31, 2019. As this derivative warrant liability is revalued at the end of each reporting period, the fair values as determined at the date of grant and subsequent periods was based on the following significant inputs using a Monte Carlo option pricing model: common stock price of $7.91; comparable company volatility of 77.7% of the underlying common stock; risk-free rates of 1.93%; and dividend yield of 0%; including the probability assessment of a terminating change event occurring. The change in fair value of the derivative warrant liability was $5 for the three months ended March 31, 2019 and was recorded in other income (expense) in the accompanying statements of operations and comprehensive loss.

XML

Stockholders' Deficit

3 Months Ended

Mar. 31, 2019

Equity [Abstract]

Stockholders' Deficit

Note 10 - Stockholders’ Deficit

Capital Stock

The Company was organized under the laws of the state of Nevada on July 27, 2004 and was subsequently reincorporated under the laws of the state of Delaware on November 10, 2015. In connection with the reincorporation, as approved by the stockholders, the Company changed its authorized capital stock to consist of (i) 100 million shares of common stock, $.001 par value, and (ii) 2 million shares of preferred stock, $0.001 par value, designated as Series A convertible preferred stock. In December 2015, the Company amended its Certificate of Incorporation to change its authorized capital stock to provide for 15 million authorized shares of preferred stock of which 7,515,000 was designated as Series B convertible preferred stock, par value $.001 per share.

Prior to November 10, 2015, the Company’s authorized capital stock consisted of 100 million shares of common stock, $.001 par value, and 10 million shares of preferred stock, $.001 par value.

Common Stock

The Company had 23,560,864 and 23,471,999 shares of common stock issued and outstanding as of March 31, 2019 and December 31, 2018, respectively. 

During the three months ended March 31, 2019, the Company issued an aggregate of 88,865 shares of common stock as follows:

● an aggregate of 31,811 shares for the exercise of outstanding warrants,

● 18,474 shares for the cashless exercise of stock options and

● an aggregate of 38,580 shares to certain employees in net settlement of bonus compensation totaling $32.

XML

Stock-based Compensation

3 Months Ended

Mar. 31, 2019

Share-based Payment Arrangement [Abstract]

Stock-based Compensation

Note 11 - Stock-based Compensation

On June 12, 2018, the Company’s stockholders approved the 2018 Equity Incentive Plan (the “2018 Plan”) to replace the Company’s 2015 Equity Incentive Plan (the “2015 Plan”). The 2018 Plan authorizes the issuance of 1,000,000 shares of our common stock. In addition, up to 2,874,280 shares of our common stock reserved for issuance under the 2015 Plan became available for issuance under the 2018 Plan to the extent such shares were available for issuance under the 2015 Plan as of June 12, 2018 or cease to be subject to awards outstanding under the 2015 Plan, such as by expiration, cancellation, or forfeiture of such awards.

The stock-based awards are generally issued with a price equal to no less than fair value at the date of grant. Options granted under the 2018 Plan generally vest immediately, or ratably over a two- to 36-month period coinciding with their respective service periods; however, participants may exercise their options prior to vesting as provided by the 2018 Plan. Unvested shares issued for options exercised early may be subject to a repurchase by the Company if the participant terminates, at the original exercise price. Options under the 2018 Plan generally have a contractual term of five years. Certain stock option awards provide for accelerated vesting upon a change in control.

As of March 31, 2019, the Company had 1,874,589 shares of common stock available for issuance under the 2018 Plan.

The Company measures the fair value of stock options with service-based and performance-based vesting criteria to employees, directors and consultants on the date of grant using the Black-Scholes option pricing model. The fair value of equity instruments issued to non-employees is re-measured as the award vests. The Black-Scholes valuation model requires the Company to make certain estimates and assumptions, including assumptions related to the expected price volatility of the Company’s stock, the period under which the options will be outstanding, the rate of return on risk-free investments, and the expected dividend yield for the Company’s stock.

The weighted-average assumptions used in the Black-Scholes option-pricing model used to calculate the fair value of options granted during the three months ended March 31, 2019, were as follows:

	Employee			Non-Employee
Expected volatility		80.6	%		N/A
Expected dividend yield		—			N/A
Expected term (in years)		3.0			N/A
Risk-free interest rate		2.48	%		N/A

The weighted average grant date fair value of options granted during the three months ended March 31, 2019 was $0.854 per share, as per the table below. .

Due to the Company’s limited operating history and lack of company-specific historical or implied volatility, the expected volatility assumption was determined based on historical volatilities from traded options of biotech companies of comparable in size and stability, whose share prices are publicly available. The expected term of options granted to employees is calculated based on the mid-point between the vesting date and the end of the contractual term according to the simplified method as described in SEC Staff Accounting Bulletin 110 because the Company does not have sufficient historical exercise data to provide a reasonable basis upon which to estimate the expected term due to the limited period of time its awards have been outstanding. For non-employee options, the expected term of options granted is the contractual term of the options. The risk-free interest rate is determined by reference to the implied yields of U.S. Treasury securities with a remaining term equal to the expected term assumed at the time of grant. The expected dividend assumption is based on the Company’s history and expectation of dividend payouts. The Company has not paid and does not intend to pay dividends.

The following table summarizes the stock option activity, for both equity plans, for the periods indicated as follows:

	Number of Options			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (1)
Outstanding at December 31, 2018		1,721,171		$	1.57		4.0	$	—
Granted		8,218		$	0.854		4.9	$	3
Exercised		(54,000	)	$	0.50		—	$	—
Forfeited		(39,500	)	$	—		—	$	—
Expired		—		$	—		—	$	—
Outstanding at March 31, 2019		1,635,889		$	1.54		3.8	$	—
Exercisable at March 31, 2019		1,416,500		$	1.57		3.0	$	—

(1) The aggregate intrinsic value in the table was calculated based on the difference between the estimated fair market value of the Company’s stock and the exercise price of the underlying options. The estimated stock values used in the calculation was $1.22 and $0.59 per share for the three months ended March 31, 2019 and the year ended December 31, 2018, respectively.

Restricted Stock Units

The following table summarizes restricted stock unit activity for the three months ended March 31, 2019: 

	Number of Units			Weighted Average Grant-Date Fair Value Per Unit
Outstanding as of December 31, 2018		136,245		$	0.98
Granted		6,262		$	0.854
Vested		(36,666	)(1)	$	0.50
Forfeited		—		$	—
Outstanding as of March 31, 2019		105,841		$	1.26

(1) These shares vested on March 30, 2019 (Saturday) and were issued on Monday, April 1, 2019.  

The stock-based compensation expense was recorded as follows:

	Three Months Ended March 31,
	2019		2018
Research and development	$	9	$	29
Selling, general and administrative		243		669
Total stock-based compensation expense	$	252	$	698

The allocation between research and development and selling, general and administrative expense was based on the department and services performed by the employee or non-employee.

At March 31, 2019, the total compensation cost related to unvested options not yet recognized was $335, which will be recognized over a weighted average period of 24 months, assuming the employees and non-employees complete their service period required for vesting.

XML

Commitments and Contingencies

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

12 - Commitments and Contingencies

Legal Proceedings 

The Company may be subject to legal proceedings and claims arising from contracts or other matters from time to time in the ordinary course of business. Management is not aware of any pending or threatened litigation where the ultimate disposition or resolution could have a material adverse effect on its financial position, results of operations or liquidity.

On February 20, 2018, New Enterprises, Ltd. (“New Enterprises”), filed lawsuit against the Company and Roth Capital Partners, LLC (“Roth”) in the U.S. District Court for the District of Arizona (the “Court”). The complaint alleges nine counts against the Company, including that: the Company engaged in common law fraud and securities fraud to induce the chairman of New Enterprises into investing in the Company; failed to register New Enterprises’ requested transfer; breached stock certificates and the lock-up contract; tortuously interfered with prospective business advantage; and conversion. New Enterprises is seeking monetary damages, including compensatory damages, punitive damages, and attorney’s fees. On December 3, 2018, the Court issued its order granting the Company’s and Roth’s motions to dismiss all of New Enterprises’ claims but gave them leave to file a motion to amend the complaint.  On January 25, 2019, New Enterprises moved for leave to file an amended complaint, alleging similar claims against the Company and Roth. The Company and Roth have filed motions to dismiss the amended complaint and those motions are under advisement with the Court as of May 15, 2019. Roth has made a claim for indemnification to the Company based on contractual indemnification agreements, but to date, the Company has not accepted Roth’s indemnification demand.

On April 20, 2018, the Company’s former Executive Vice President and Chief Operating Officer Andrew Altman filed a charge of employment discrimination with the Equal Employment Opportunity Commission (EEOC) against the Company. Mr. Altman claimed that he was terminated after he expressed opposition to an email Cheryl Dyer, Chief Research Officer, had sent out to the management team, in which she criticized a Mormon newspaper. The Company filed a position statement on May 21, 2018. No substantive action has been taken since then, and the Company has not heard anything further either from the EEOC or Mr. Altman’s attorneys.

Lease Commitments

The Company is obligated under capital leases for certain research and computer equipment that expire on various dates through July 2023. At March 31, 2019, the gross amount of office and computer equipment, and research equipment and the related accumulated amortization recorded under the capital leases was $521 and $225, respectively.

In February 2012, the Company entered into an operating lease for its corporate headquarters. The lease was due to expire in January 2015. In December 2013, the Company amended its lease to expand into the remaining area in the building and extended the term to December 31, 2019. In February 2014, the Company further amended the lease to expand into an adjacent building. The lease requires escalating rental payments over the lease term. Minimum rental payments under the operating lease are recognized on a straight-line basis over the term of the lease and accordingly, the Company records the difference between the cash rent payments and the recognition of rent expense as a deferred rent liability. The lease is guaranteed by the President of the Company. We are currently in discussions to extend the current lease.

On November 16, 2016, we leased an additional 1,954 square feet of research and development space, also in Flagstaff. This lease expired on November 15, 2018 but was extended for an additional 24 months, through November 2020. A subsequent amendment to the lease allows for the Company to cancel the lease at any time through the lease term with 30 days notice.

The lease extension requires fixed rental payments over the lease term. Minimum rental payments under the operating lease are recognized on a straight-line basis over the term of the lease as expense, and accordingly, the Company recorded no deferred rent liability under this lease.

Rent expense was $68 and $61 for the three months ended and year ended March 31, 2019 and March 31, 2018, respectively. The future minimum lease payments under non-cancellable operating lease and future minimum capital lease payments as of March 31, 2019 are as follows:

	Capital Leases		Operating Lease
Years Ending December 31,
2019		73		203
2020		78		45
2021		63		—
2022		33		—
2023		3
Total minimum lease payments	$	250	$	248

	Capital Leases
Less: amounts representing interest (6.39%, ranging from 10.48% to 11.56%)	$	37
Present value of minimum lease payments		213
Less: current installments under capital lease obligations		77
Total long-term portion	$	136

XML

Subsequent Events

3 Months Ended

Mar. 31, 2019

Subsequent Events [Abstract]

Subsequent Events

Note 13 - Subsequent Events

In April 2019, the Company net issued 17,042 shares of common stock to certain employees in net settlement of restricted stock units that vested during the period. The shares of common stock withheld were used to satisfy required withholding tax liability in connection with the vesting of shares.

Also in April 2019, the Company net issued 3,488 shares of common stock in settlement of the cashless exercise of vested common stock options by two former employees.

In April and May of 2019, the Company issued an aggregate of 1,411,885 shares of commons stock for the exercise of certain warrants. The net proceeds to the Company for these exercises was $1.6 million.

The Company has evaluated subsequent events from the balance sheet date through May 15, 2019, the date at which the financial statements were issued, and determined that there were no other items that require adjustment to or disclosure in the financial statements.

XML

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts and classification of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of revenues and expenses during the reporting period. The significant estimates in the Company’s financial statements include the valuation of preferred stock, common stock and related warrants, and other stock-based awards. Actual results could differ from such estimates.

Reclassifications

Reclassifications

Certain prior year amounts have been reclassified to conform to the current period presentation. These reclassifications had no material impact on net earnings, financial position or cash flows.

Accounts Receivable

Accounts Receivable

Accounts receivable consist primarily of trade receivables. The Company provides an allowance for doubtful trade receivables equal to the estimated uncollectible amounts. That estimate is based on historical collection experience, current economic and market conditions and a review of the current status of each customer’s trade accounts receivable. The allowance for doubtful trade receivables was less than $1 at March 31, 2019 and at December 31, 2018.

Inventories

Inventories

Inventories are stated at the lower of cost or market value, using the first-in, first-out convention. Inventories consist of raw materials, work in progress and finished goods.

Components of inventory are:

	March 31,			December 31,
	2019			2018
Raw materials	$	1,087		$	1,111
Work in progress		1			—
Finished goods		251			154
Total inventory		1,339			1,265
Less:
Reserve for obsolete		(4	)		(4	)
Total net inventory	$	1,335		$	1,261

Prepaid Expenses

Prepaid Expenses

Prepaid expenses consist primarily of payments made for director and officer insurance, director compensation, rent, legal and inventory purchase deposits and seminar fees to be expensed in the current year.

Property and Equipment

Property and Equipment

Property and equipment are stated at cost less accumulated depreciation. Equipment held under capital leases are stated at the present value of minimum lease payments less accumulated amortization.

Depreciation on property and equipment is computed using the straight-line method over the estimated useful lives of the respective assets. The cost of leasehold improvements is amortized over the life of the improvement or the term of the lease, whichever is shorter. Equipment held under capital leases is amortized over the shorter of the lease term or estimated useful life of the asset. The Company incurs repair and maintenance costs on its major equipment, which are expensed as incurred.

Impairment of Long-Lived Assets

Impairment of Long-Lived Assets

Long-lived assets, such as property and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. If circumstances require long-lived assets or asset groups to be tested for possible impairment, the Company compares the undiscounted cash flows expected to be generated from the use of the asset or asset group to its carrying amount. If the carrying amount of the long-lived asset or asset group is not recoverable on an undiscounted cash flow basis, an impairment charge is recognized to the extent that the carrying amount exceeds its fair value. Fair value is determined through various valuation techniques, such as discounted cash flow models and the use of third-party independent appraisals. The Company has not recorded an impairment of long-lived assets since its inception.

Revenue Recognition

Revenue Recognition

Effective January 1, 2018, the Company adopted ASC 606 — Revenue from Contracts with Customers. Under ASC 606, the Company recognizes revenue from the commercial sales of products, licensing agreements and contracts to perform pilot studies by applying the following steps: (1) identify the contract with a customer; (2) identify the performance obligations in the contract; (3) determine the transaction price; (4) allocate the transaction price to each performance obligation in the contract; and (5) recognize revenue when each performance obligation is satisfied. For the comparative periods, revenue has not been adjusted and continues to be reported under ASC 605 — Revenue Recognition. Under ASC 605, revenue is recognized when the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) the performance of service has been rendered to a customer or delivery has occurred; (3) the amount of the fee to be paid by a customer is fixed and determinable; and (4) the collectability of the fee is reasonably assured. The performance obligations identified by the Company under Accounting Standards Codification (“ASC”) Topic 606, Revenue From Contracts With Customers, are straightforward and similar to the unit of account and performance obligation determination under ASC Topic 605, Revenue Recognition. There was no impact on the Company’s financial statements as a result of adopting ASC 606 for the three months ended March 31, 2019 and 2018, respectively.

The Company recognizes revenue when it leaves their dock at a fixed selling price and payment terms of 30 to 120 days from invoicing. The Company recognizes other revenue earned from pilot studies upon the performance of specific services under the respective service contract.

The Company derives revenue primarily from commercial sales of products.

Research and Development

Research and Development

Research and development costs are expensed as incurred. Research and development expenses primarily consist of salaries and benefits for research and development employees, stock-based compensation, consulting fees, lab supplies, costs incurred related to conducting scientific trials and field studies, and regulatory compliance costs. Also, included in research and development expenses is an allocation of facilities related costs, including depreciation of research and development equipment.

Stock-based Compensation

Stock-based Compensation

Employee stock-based awards, consisting of restricted stock units and stock options expected to be settled in shares of the Company’s common stock, are recorded as equity awards. The grant date fair value of these awards is measured using the Black-Scholes option pricing model. The Company expenses the grant date fair value of its stock options on a straight-line basis over their respective vesting periods. Performance-based awards are expensed over the performance period when the related performance goals are probable of being achieved.

For equity instruments issued to non-employees, the stock-based consideration is measured using a fair value method. The measurement of the stock-based compensation is subject to re-measurement as the underlying equity instruments vest.

The stock-based compensation expense recorded for the three months ended March 31, 2019 and 2018, is as follows:

	Three Months Ended March 31,
	2019		2018
Research and development	$	9	$	29
Selling, general and administrative		243		669
Total stock-based compensation expense	$	252	$	698

See Note 11 for additional discussion on stock-based compensation.

Income Taxes

Income Taxes

Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statements and tax bases of assets and liabilities and net operating loss carryforwards using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in the period that includes the enactment date.

The Company records net deferred tax assets to the extent it believes these assets will more likely than not be realized. These deferred tax assets are subject to periodic assessments as to recoverability and if it is determined that it is more likely than not that the benefits will not be realized, valuation allowances are recorded which would increase the provision for income taxes. In making such determination, the Company considers all available positive and negative evidence, including future reversals of existing taxable temporary differences, projected future taxable income, tax planning strategies and recent financial operations. The Company currently maintains a full allowance against its deferred tax assets.

The Company applies a more-likely-than-not recognition threshold for all tax uncertainties. Only those benefits that have a greater than fifty percent likelihood of being sustained upon examination by the taxing authorities are recognized. Based on its evaluation, the Company has concluded there are no significant uncertain tax positions requiring recognition in its financial statements.

The Company recognizes interest and/or penalties related to uncertain tax positions in income tax expense. There are no uncertain tax positions as of March 31, 2019 or December 31, 2018 and as such, no interest or penalties were recorded in income tax expense.

Comprehensive Loss

Comprehensive Loss

Net loss and comprehensive loss were the same for all periods presented; therefore, a separate statement of comprehensive loss is not included in the accompanying financial statements.

Loss Per Share Attributable to Common Stockholders

Loss Per Share Attributable to Common Stockholders

Basic loss per share attributable to common stockholders is calculated by dividing the net loss attributable to common stockholders by the weighted average number of common shares outstanding during the period. Diluted loss per share attributable to common stockholders is computed by dividing the loss attributable to common stockholders by the weighted average number of common shares and potentially dilutive securities outstanding for the period determined using the treasury stock and if-converted methods. For purposes of the computation of diluted loss per share attributable to common stockholders, common stock purchase warrants, and common stock options are considered to be potentially dilutive securities but have been excluded from the calculation of diluted loss per share attributable to common stockholders because their effect would be anti-dilutive given the net loss reported for the three months ended March 31, 2019 and 2018. Therefore, basic and diluted loss per share attributable to common stockholders are the same for each period presented.

The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted loss per share attributable to common stockholders (in common stock equivalent shares): 

	March 31,
	2019		2018
Common stock purchase warrants		11,195,010		6,431,785
Restricted stock unit		105,841		237,885
Common stock options		1,635,889		1,629,967
Total		12,936,740		8,299,637

Adoption of New Accounting Standards:

Adoption of New Accounting Standards:

In May 2014 the FASB issued ASU 2014-09, Revenue from Contracts with Customers. Since ASU 2014-09 was issued, several additional ASUs have been issued to clarify various elements of the guidance. These standards provide guidance on recognizing revenue, including a five-step model to determine when revenue recognition is appropriate. The standard requires that an entity recognize revenue to depict the transfer of control of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. Effective January 1, 2018, the Company adopted ASU 2014-09, “Revenue from Contracts with Customers” using the modified retrospective method to all contracts that were not completed as of the date of adoption. The results of operations for reported periods after January 1, 2018 are presented under this amended guidance, while prior period amounts are reported in accordance with ASC 605 — Revenue Recognition. There was no material impact on our financial position, results of operations, or cash flows. See Note 2 — Summary of Significant Accounting Policies — Revenue Recognition.

In January 2016, the FASB issued ASU 2016-01, Recognition and Measurement of Financial Assets and Financial Liabilities (“ASU 2016-01”). This standard affects the accounting for equity instruments, financial liabilities under the fair value option and the presentation and disclosure requirements of financial instruments. ASU 2016-01 is effective the first quarter of 2018. The Company has adopted the provisions of ASU 2016-01 on its financial statements. There was no material impact on our financial position, results of operations, or cash flows.

In February 2016, the FASB issued ASU 2016-02, Leases (“ASU 2016-02”). This standard amends various aspects of existing accounting guidance for leases, including the recognition of a right-of-use asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. This standard also introduces new disclosure requirements for leasing arrangements. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years for public business entities. Early adoption was permitted, and the new standard had been adopted using a modified retrospective approach and provides for certain practical expedients.

On January 1, 2019, the Company adopted the new leasing standard and all related amendments. The Company elected the optional transition method provided by the FASB in ASU 2018-11, Leases (Topic 842): Targeted Improvements, and as a result, has not restated its condensed consolidated financial statements for prior periods presented. The Company has elected the practical expedients upon transition to retain the lease classification and initial direct costs for any leases that existed prior to adoption. The Company has also not reassessed whether any contracts entered into prior to adoption are leases.

The standard did not have a material impact on the Company’s Condensed Consolidated Statements of Comprehensive Income. The cumulative effect of the changes made to the Company’s Consolidated Balance Sheet as of January 1, 2019 for the adoption of the new leasing standard was as follows:

	Balance @ December 31, 2018		Adjustment Due to ASC 842			Balance @ January 1, 2019
Right to Use Asset - Long Term		—	$	87		$	87
Lease Liability – Long Term		—	($	87	)	($	87	)

The Company determines if an arrangement is a lease at lease inception. Operating lease right-of-use (ROU) assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company’s lease contracts do not include an implicit rate, the Company uses its incremental borrowing rate based on information available at commencement date in determining the present value of future payments. The incremental borrowing rate is estimated to approximate the interest rate on a collateralized basis with similar terms and payments, and in economic environments where the leased asset is located. The operating lease ROU asset also includes any initial direct costs and lease payments made prior to lease commencement and excludes lease incentives incurred.

The Company’s lease terms may include options to extend or terminate the lease when it is reasonably certain that we will exercise that option. Operating lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. The Company has certain lease agreements that contain both lease and non-lease components, which it has elected to account for as a single lease component for all asset classes

Accounting Standards Issued but Not Yet Adopted

Accounting Standards Issued but Not Yet Adopted

In August 2018, the FASB issued authoritative guidance intended to address a customer’s accounting for implementation costs incurred in a cloud computing arrangement that is a service contract. This guidance aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The guidance also requires presentation of the capitalized implementation costs in the statement of financial position and in the statement of cash flows in the same line item that a prepayment for the fees of the associated hosting arrangement would be presented, and the expense related to the capitalized implementation costs to be presented in the same line item in the statement of operations as the fees associated with the hosting element (service) of the arrangement. This guidance is effective for annual periods beginning after December 15, 2019, including interim periods within those annual periods, with early adoption permitted. We are currently evaluating the potential impact on our financial position, results of operations and statement of cash flows upon adoption of this guidance, which will result in the change in presentation of capitalized implementation costs related to hosting arrangements from properties to other assets on the consolidated balance sheet, as well as the expense related to such costs no longer being classified as depreciation expense and cash flows related to those costs no longer being presented as investing activities.

Other than the items noted above, there have been no new accounting pronouncements not yet effective or adopted in the current year that we believe have a significant impact, or potential significant impact, to our unaudited condensed consolidated interim financial statements.

XML

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2019

Accounting Policies [Abstract]

Schedule of inventory

Components of inventory are:

	March 31,			December 31,
	2019			2018
Raw materials	$	1,087		$	1,111
Work in progress		1			—
Finished goods		251			154
Total inventory		1,339			1,265
Less:
Reserve for obsolete		(4	)		(4	)
Total net inventory	$	1,335		$	1,261

Schedule of employee stock-based compensation expense

The stock-based compensation expense recorded for the three months ended March 31, 2019 and 2018, is as follows: 

	Three Months Ended March 31,
	2019		2018
Research and development	$	9	$	29
Selling, general and administrative		243		669
Total stock-based compensation expense	$	252	$	698

Schedule of outstanding potentially dilutive securities calculation of diluted loss per share attributable to common stockholders

The following table sets forth the outstanding potentially dilutive securities that have been excluded in the calculation of diluted loss per share attributable to common stockholders (in common stock equivalent shares):

	March 31,
	2019		2018
Common stock purchase warrants		11,195,010		6,431,785
Restricted stock unit		105,841		237,885
Common stock options		1,635,889		1,629,967
Total		12,936,740		8,299,637

Schedule of cumulative effect of the changes made to the Company's Consolidated Balance Sheet

The cumulative effect of the changes made to the Company’s Consolidated Balance Sheet as of January 1, 2019 for the adoption of the new leasing standard was as follows:

	Balance @ December 31, 2018		Adjustment Due to ASC 842			Balance @ January 1, 2019
Right to Use Asset - Long Term		—	$	87		$	87
Lease Liability – Long Term		—	($	87	)	($	87	)

XML

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2019

Fair Value Disclosures [Abstract]

Schedule of fair value of financial instruments

The following table sets forth the Company’s financial instruments that were measured at fair value on a recurring basis by level within the fair value hierarchy (in thousands): 

	March 31, 2019
	Level 1		Level 2		Level 3		Total
Financial Liabilities:
Common stock warrant liability (1)	$	—	$	—	$	5	$	5
Total	$	—	$	—	$	5	$	5
	December 31, 2018
		Level 1		Level 2		Level 3		Total
Financial Assets:
Money market funds	$	—	$	—	$	—	$	—
Corporate fixed income debt securities		—		—		—		—
Total	$	3	$	—	$	—	$	—
Financial Liabilities:
Common stock warrant liability (1)	$	—	$	—	$	—	$	—
Total	$	—	$	—	$	—	$	—

(1) The change in the fair value of the common stock warrant and convertible notes payable for the three months ended March 31, 2019 was recorded as a decrease to other income (expense) and interest expense of $5, in the statements of operations and comprehensive loss.

XML

Prepaid Expenses (Tables)

3 Months Ended

Mar. 31, 2019

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of prepaid expenses

Prepaid expenses consist of the following:

	March 31,		December 31,
	2019		2018
Director compensation	$	50	$	100
Director and officer insurance		146		121
NASDAQ fees		41
Legal retainer		25		25
Marketing programs and conferences		50		53
Professional services retainer		12		8
Rent		19		19
Equipment service deposits		2		3
Engineering, software licenses and other		—		13
Total prepaid expenses	$	345	$	342

XML

Property and Equipment (Tables)

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of property and equipment

Property and equipment, net consist of the following:

		March 31,			December 31,
	Useful Life	2019			2018
Research and development equipment	5 years	$	1,554		$	1,552
Office and computer equipment	3 years		751			742
Autos	5 years		54			54
Furniture and fixtures	7 years		37			37
Leasehold improvements	*		283			283
			2,679			2,668
Less accumulated depreciation and amortization			(1,696	)		(1,585	)
Total		$	983		$	1,083

* Shorter of lease term or estimated useful life

XML

Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2019

Payables and Accruals [Abstract]

Schedule of accrued expenses

Accrued expenses consist of the following:

	March 31,		December 31,
	2019		2018
Compensation and related benefits	$	259	$	479
Accrued Litigation		507		269
Board Compensation		—		23
Other		10		—
Total accrued expenses	$	776	$	771

XML

Borrowings (Tables)

3 Months Ended

Mar. 31, 2019

Debt Disclosure [Abstract]

Schedule of capital lease obligations

A summary of the Company’s borrowings, including capital lease obligations, is as follows:

	March 31,			December 31,
Short-term debt:	2019			2018
Current portion of long-term debt		202			219
Total short-term debt	$	202		$	219
Long-term debt:
Capital lease obligations	$	212		$	232
Other promissory notes		217			248
Total		429			480
Less: current portion of long-term debt		(202	)		(219	)
Total long-term debt	$	227		$	261

XML

Common Stock Warrants and Common Stock Warrant Liability (Tables)

3 Months Ended

Mar. 31, 2019

Warrants and Rights Note Disclosure [Abstract]

Schedule of common stock warrant activity

The table summarizes the common stock warrant activity as of March 31, 2019 as follows:

Common Stock Warrants	Number of Warrants			Date  Issued	Term		Exercise Price
Outstanding at December 31, 2017		6,431,785
Warrants issued		1,133,909		June 2018		5 Years	$	1.82
Common Stock Offering Warrants Issued		5,357,052		August 2018		5 Years	$	1.15	(1)
Common Stock Offering - Dealer Manager Warrants		267,853		August 2018		5 Years	$	1.725
Warrants exercised		(1,475,659	)
Expired Warrants		(488,119	)
Outstanding at December 31, 2018		11,226,821
Warrants Exercised		(31,811	)	August 2018			$	1.15
Outstanding at March 31, 2019		11,195,010

(1) The common stock warrants issued in November 2017 with an initial exercise price of $1.50 per share adjusted downward to $0.95 per share effective July 24, 2018 in connection with our Rights Offering, and may be subject to further downward adjustments, pursuant to antidilution price adjustment protection contained within those warrants.

XML

Stock-based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Share-based Payment Arrangement [Abstract]

Schedule of fair value of options granted

The weighted-average assumptions used in the Black-Scholes option-pricing model used to calculate the fair value of options granted during the three months ended March 31, 2019, were as follows:

	Employee			Non-Employee
Expected volatility		80.6	%		N/A
Expected dividend yield		—			N/A
Expected term (in years)		3.0			N/A
Risk-free interest rate		2.48	%		N/A

Schedule of stock option activity

The following table summarizes the stock option activity, for both equity plans, for the periods indicated as follows:

	Number of Options			Weighted Average Exercise Price Per Share		Weighted Average Remaining Contractual Term (years)		Aggregate Intrinsic Value (1)
Outstanding at December 31, 2018		1,721,171		$	1.57		4.0	$	—
Granted		8,218		$	0.854		4.9	$	3
Exercised		(54,000	)	$	0.50		—	$	—
Forfeited		(39,500	)	$	—		—	$	—
Expired		—		$	—		—	$	—
Outstanding at March 31, 2019		1,635,889		$	1.54		3.8	$	—
Exercisable at March 31, 2019		1,416,500		$	1.57		3.0	$	—

(1) The aggregate intrinsic value in the table was calculated based on the difference between the estimated fair market value of the Company’s stock and the exercise price of the underlying options. The estimated stock values used in the calculation was $1.22 and $0.59 per share for the three months ended March 31, 2019 and the year ended December 31, 2018, respectively.

Schedule of summarizes restricted stock unit activity

The following table summarizes restricted stock unit activity for the three months ended March 31, 2019:

	Number of Units			Weighted Average Grant-Date Fair Value Per Unit
Outstanding as of December 31, 2018		136,245		$	0.98
Granted		6,262		$	0.854
Vested		(36,666	)(1)	$	0.50
Forfeited		—		$	—
Outstanding as of March 31, 2019		105,841		$	1.26

(1) These shares vested on March 30, 2019 (Saturday) and were issued on Monday, April 1, 2019.

Schedule of stock-based compensation expense

The stock-based compensation expense was recorded as follows:

	Three Months Ended March 31,
	2019		2018
Research and development	$	9	$	29
Selling, general and administrative		243		669
Total stock-based compensation expense	$	252	$	698

XML

Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of the future minimum lease payments under non-cancellable operating lease and future minimum capital lease payments

The future minimum lease payments under non-cancellable operating lease and future minimum capital lease payments as of March 31, 2019 are as follows:

	Capital Leases		Operating Lease
Years Ending December 31,
2019		73		203
2020		78		45
2021		63		—
2022		33		—
2023		3
Total minimum lease payments	$	250	$	248

	Capital Leases
Less: amounts representing interest (6.39%, ranging from 10.48% to 11.56%)	$	37
Present value of minimum lease payments		213
Less: current installments under capital lease obligations		77
Total long-term portion	$	136

XML

Organization and Description of Business (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended	12 Months Ended
	Aug. 31, 2018	Aug. 13, 2018	Mar. 31, 2019	Dec. 31, 2017	Dec. 31, 2018	Jun. 01, 2018	Nov. 30, 2017	Nov. 21, 2017	Dec. 08, 2016
exercise price (in dollars per share)			$ 1.15
Proceeds from issuance and sale of common stock, preferred stock, warrants exercise, convertible and other promissory notes			$ 61,800
Proceeds from licensing fees			1,700
Proceeds from product sales			400
Accumulated deficit			(88,202)		$ (85,838)
Cash, cash equivalents and short-term investments			$ 2,900
Common Stock Offering Warrants Issued
Initial Public Offering [Member]
Number of shares issued									1,875,000
Initial Public Offering [Member] | Common Stock Purchase Warrants [Member]
Number of shares issued									187,500
exercise price (in dollars per share)									$ 9.60
Public Offering [Member]
Number of shares issued								5,860,000
exercise price (in dollars per share)								$ 1.00
Shares issued per share (in dollars per share)								$ 1.00
Public Offering [Member] | Common Stock Purchase Warrants [Member] | Investor [Member]
Number of shares issued								4,657,500
exercise price (in dollars per share)								$ 1.50
Public Offering [Member] | Common Stock Purchase Warrants [Member] | Roth Capital Partners, LLC [Member]
Number of shares issued								945,000
exercise price (in dollars per share)								$ 1.50
Private placement [Member] | Common Stock Purchase Warrants [Member]
Number of shares issued						1,133,909	1,133,909
exercise price (in dollars per share)						$ 1.82	$ 1.50
Right Offering [Member]
exercise price (in dollars per share)	$ 1.15
Unit price (in dollars per unit)	1.15
Common Stock Offering Warrants Issued		5,357,052
Right Offering [Member] | Common Stock Purchase Warrants [Member] | Maxim Partners LLC [Member]
exercise price (in dollars per share)	$ 1.725
Number of subscriptions shares accept	5,357,052
Common Stock Offering Warrants Issued	267,853

XML

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Raw materials	$ 1,087	$ 1,111
Work in progress	1
Finished goods	251	154
Total inventory	1,339	1,265
Less: reserve for obsolete	(4)	(4)
Total net inventory	$ 1,335	$ 1,261

XML

Summary of Significant Accounting Policies (Details 1) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Total stock-based compensation expense	$ 252	$ 698
Research and Development Expense [Member]
Total stock-based compensation expense	9	29
Selling, General and Administrative Expenses [Member]
Total stock-based compensation expense	$ 243	$ 669

XML

Summary of Significant Accounting Policies (Details 2) - shares	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Total	12,936,740	8,299,637
Common Stock Purchase Warrants [Member]
Total	11,195,010	6,431,785
Restricted Stock Unit [Member]
Total	105,841	237,885
Common Stock Options [Member]
Total	1,635,889	1,629,967

XML

Summary of Significant Accounting Policies (Details 3) - USD ($) $ in Thousands	Mar. 31, 2019	Jan. 02, 2019	Dec. 31, 2018
Right to Use Asset - Long Term	$ 76	$ 87
Lease Liability - Long Term	$ 76	$ (87)
Adjustment Due to ASC 842 [Member]
Right to Use Asset - Long Term			87
Lease Liability - Long Term			$ (87)

XML

Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Allowance for doubtful trade receivables	$ 1	$ 1

XML

Fair Value Measurements (Details) - Fair Value Measurements, Recurring [Member] - USD ($) $ in Thousands		Mar. 31, 2019	Dec. 31, 2018
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Financial Liabilities:
Common stock warrant liability	[1]	$ 5
Total		5
Corporate Fixed Income Debt Securities [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Money Market Funds [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Fair Value Inputs, Level 1 [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Financial Liabilities:
Common stock warrant liability	[1]
Total
Fair Value Inputs, Level 1 [Member] | Corporate Fixed Income Debt Securities [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Fair Value Inputs, Level 1 [Member] | Money Market Funds [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total			3
Fair Value Inputs, Level 2 [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Financial Liabilities:
Common stock warrant liability	[1]
Total
Fair Value Inputs, Level 2 [Member] | Corporate Fixed Income Debt Securities [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Fair Value Inputs, Level 2 [Member] | Money Market Funds [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Fair Value Inputs, Level 3 [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Financial Liabilities:
Common stock warrant liability	[1]	5
Total		$ 5
Fair Value Inputs, Level 3 [Member] | Corporate Fixed Income Debt Securities [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total
Fair Value Inputs, Level 3 [Member] | Money Market Funds [Member]
Financial Assets:
Held-to-maturity Securities, Fair Value
Total

[1] The change in the fair value of the common stock warrant and convertible notes payable for the three months ended March 31, 2019 was recorded as a decrease to other income (expense) and interest expense of $5, in the statements of operations and comprehensive loss.

XML

Fair Value Measurements (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Fair Value Disclosures [Abstract]
Other income (expense)	$ (5)	$ 13

XML

Prepaid Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Director compensation	$ 50	$ 100
Director and officer insurance	146	121
NASDAQ fees	41
Legal retainer	25	25
Marketing programs and conferences	50	53
Professional services retainer	12	8
Rent	19	19
Equipment service deposits	2	3
Engineering, software licenses and other		13
Total prepaid expenses	$ 345	$ 342

XML

Property and Equipment (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment, Gross		$ 2,679	$ 2,668
Less accumulated depreciation and amortization		(1,696)	(1,585)
Total		983	1,083
Research and Development Equipment [Member]
Property, Plant and Equipment, Gross		$ 1,554	1,552
Property, Plant and Equipment, Useful Life		5 years
Office and Computer Equipment [Member]
Property, Plant and Equipment, Gross		$ 751	742
Property, Plant and Equipment, Useful Life		3 years
Autos [Member]
Property, Plant and Equipment, Gross		$ 54	54
Property, Plant and Equipment, Useful Life		5 years
Furniture and Fixtures [Member]
Property, Plant and Equipment, Gross		$ 37	37
Property, Plant and Equipment, Useful Life		7 years
Leasehold Improvements [Member]
Property, Plant and Equipment, Gross	[1]	$ 283	$ 283

[1] Shorter of lease term or estimated useful life

XML

Property and Equipment (Details Narrative) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Property, Plant and Equipment [Abstract]
Depreciation and amortization expense	$ 111	$ 117

XML

Accrued Expenses (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Payables and Accruals [Abstract]
Compensation and related benefits	$ 259	$ 479
Accrued Litigation	507	269
Board Compensation		23
Other	10
Total accrued expenses	$ 776	$ 771

XML

Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Short-term debt:
Current portion of long-term debt	$ 202	$ 219
Total short-term debt	202	219
Long-term debt:
Capital lease obligations	212	232
Other promissory notes	217	248
Total	429	480
Less: current portion of long-term debt	(202)	(219)
Total long-term debt	$ 227	$ 261

XML

Borrowings (Details Narrative)	3 Months Ended
	Mar. 31, 2019
Other Promissory Notes [Member]
Description of borrowings expiration period	Various dates through June 2022
Other Promissory Notes [Member] | Minimum [Member]
Interest rate on borrowings	4.30%
Other Promissory Notes [Member] | Maximum [Member]
Interest rate on borrowings	13.80%
Capital Lease Obligations [Member]
Description of borrowings expiration period	Various dates through July 2023
Capital Lease Obligations [Member] | Minimum [Member]
Interest rate on borrowings	6.40%
Capital Lease Obligations [Member] | Maximum [Member]
Interest rate on borrowings	11.60%

XML

Common Stock Warrants and Common Stock Warrant Liability (Details) - $ / shares		3 Months Ended	12 Months Ended
		Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Outstanding at beginning		11,226,821	6,431,785	829,285
Warrants issued
Warrants exercised		(31,811)
Expired Warrants			(488,119)
Date Issued		2018-08
Exercise Price (in dollars per share)		$ 1.15
Outstanding at ending		11,195,010	11,226,821	6,431,785
Warrants issued [Member]
Warrants issued			1,133,909
Date Issued			2018-06
Term			5 years
Exercise Price (in dollars per share)			$ 1.82
Common Stock Offering Warrants Issued [Member]
Warrants issued			5,357,052	4,657,500
Date Issued			2018-08	2017-11
Term			5 years	5 years
Exercise Price (in dollars per share)	[1]		$ 1.15	$ 1.50
Common Stock Offering - Dealer Manager Warrants [Member]
Warrants issued			267,853
Date Issued			2018-08
Term			5 years
Exercise Price (in dollars per share)			$ 1.725
Common Stock Offering Underwriter Warrants [Member]
Warrants issued				945,000
Date Issued				2017-11
Term				5 years
Exercise Price (in dollars per share)				$ 1.50

[1] The common stock warrants issued in November 2017 with an initial exercise price of $1.50 per share adjusted downward to $0.95 per share effective July 24, 2018 in connection with our Rights Offering, and may be subject to further downward adjustments, pursuant to antidilution price adjustment protection contained within those warrants.

XML

Common Stock Warrants and Common Stock Warrant Liability (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands							1 Months Ended		3 Months Ended		12 Months Ended
	Sep. 13, 2018	Aug. 31, 2018	Aug. 13, 2018	Jul. 24, 2018	Jun. 20, 2018	Nov. 21, 2017	Jun. 30, 2018	Nov. 30, 2017	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2017	Dec. 31, 2018	Jun. 30, 2015
Warrants exercised									(31,811)
Common Stock Offering Warrants Issued
Exercise price (in dollars per share)									$ 1.15
Share price (in dollars per share)									$ 1.22			$ 0.59
Change in fair value of the derivative warrant liability									$ (5)	$ 13
Fair value adjustment of warrants									1
Stock compensation expense									252	$ 698
Deemed dividend									333
Unexercised warrants									$ 3,181,841
Common Stock Warrants Issued To Participants in Offering of the Company's Common Stock [Member]
Common Stock Offering Warrants Issued					1,133,909
Number of shares purchased					1,133,909	4,657,500			1,133,909
Exercise price (in dollars per share)					$ 1.50	$ 1.50			$ 1.82
Warrant term						5 years
Description of method used						Lattice model
Share price (in dollars per share)						$ 1.00			$ 2.11
Fair value of common stock warrant						$ 661
Expected volatility rate						73.80%	72.60%
Expected term						5 years	5 years
Expected dividend rate						0.00%	0.00%
Risk free interest rate						1.87%	2.80%
Proceeds from warrant exercises					$ 1,700		$ 1,700
Stock compensation expense							1,700
Common Stock Warrant Issued to Underwriter of Common Stock Offering [Member]
Number of shares purchased								945,000
Exercise price (in dollars per share)			$ 0.95	$ 1.47				$ 1.50
Warrant term								5 years
Description of method used								Lattice model
Share price (in dollars per share)			$ 1.02	$ 1.38				$ 1.00
Fair value of common stock warrant								$ 134
Expected volatility rate			74.00%	72.40%				73.80%
Expected term			4 years 3 months	4 years 3 months 29 days				5 years
Expected dividend rate			0.00%	0.00%				0.00%
Risk free interest rate			2.75%	2.83%				1.87%
New Warrants November 8, 2017 [Member]
Number of shares purchased					1,133,909				341,750
Exercise price (in dollars per share)					$ 1.82
Proceeds from warrant exercises							$ 513
University of Arizona Common Stock Warrant [Member]
Number of shares purchased													15,000
Exercise price (in dollars per share)									$ 7.91				$ 7.50
Warrant term									5 years
Description of method used									Monte Carlo option pricing model
Expected volatility rate									77.70%
Expected dividend rate									0.00%
Risk free interest rate									1.93%
Change in fair value of the derivative warrant liability									$ 5
Derivative liability									$ 5				$ 53
Public Offering [Member]
Number of shares purchased						5,860,000
Exercise price (in dollars per share)						$ 1.00
Right Offering [Member]
Common Stock Offering Warrants Issued			5,357,052
Exercise price (in dollars per share)		$ 1.15
Share price (in dollars per share)			$ 0.94
Fair value of common stock warrant			$ 3,600
Expected volatility rate	159.00%
Expected term	5 years
Expected dividend rate	0.00%
Risk free interest rate	2.77%
Number of share issued in transaction			5,357,052
Right Offering [Member] | Warrant [Member] | Maxim Partners LLC [Member]
Common Stock Offering Warrants Issued		267,853
Exercise price (in dollars per share)		$ 1.725
Share price (in dollars per share)			$ 0.94
Fair value of common stock warrant			$ 169
Expected volatility rate			159.00%
Expected term			5 years
Expected dividend rate			0.00%
Risk free interest rate			2.77%

XML

Stockholders' Deficit (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2015	Nov. 10, 2015	Oct. 31, 2015
Common stock, authorized	100,000,000		100,000,000		100,000,000	100,000
Preferred stock, authorized				15,000,000	10,000,000	10,000
Preferred stock, par value (in dollars per share)					$ 0.001	$ 0.001
Common stock, shares, issued	23,560,864		23,471,999
Common stock, shares, outstanding	23,560,864		23,471,999
Cashless exercise of vested stock options	18,474
Settlement of compensation	$ 32
Warrants exercised	31,811
Common stock, par value (in dollars per share)	$ 0.001		$ 0.001		$ 0.001	$ .001
Common Stock Offering Warrants Issued
Settlement of compensation (in shares)	38,580
Common Stock [Member]
Aggregate number of common stock issued	88,865
Series A Preferred Stock [Member]
Preferred stock, authorized				7,515,000	2,000,000
Preferred stock, par value (in dollars per share)				$ 0.001	$ 0.001

XML

Stock-based Compensation (Details) - Employee [Member]	3 Months Ended
	Mar. 31, 2019
Expected volatility	80.60%
Expected term (in years)	3 years
Risk-free interest rate	2.48%

XML

Stock-based Compensation (Details 1)	3 Months Ended
	Mar. 31, 2019 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding at beginning | shares	1,721,171
Granted | shares	8,218
Exercised | shares	(18,474)
Forfeited | shares	(39,500)
Expired | shares
Outstanding at ending | shares	1,635,889
Exercisable at ending | shares	1,416,500
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning	$ 1.57
Granted	0.854
Exercised	0.50
Forfeited
Expired
Outstanding at ending	1.54
Exercisable at ending	$ 1.57
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Life [Roll Forward]
Outstanding at beginning	4 years
Granted	4 years 10 months 24 days
Outstanding at ending	3 years 9 months 18 days
Exercisable at ending	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Roll Forward]
Outstanding at beginning | $		[1]
Granted	$ 3	[1]
Outstanding at ending | $		[1]
Exercisable at ending | $		[1]

[1] The aggregate intrinsic value in the table was calculated based on the difference between the estimated fair market value of the Company's stock and the exercise price of the underlying options. The estimated stock values used in the calculation was $1.22 and $0.59 per share for the three months ended March 31, 2019 and the year ended December 31, 2018, respectively.

XML

Stock-based Compensation (Details 2) - Restricted Stock Unit [Member]	3 Months Ended
	Mar. 31, 2019 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward]
Balance at beginning | shares	136,245
Granted | shares	6,262
Vested | shares	(36,666)	[1]
Forfeited | shares
Balance at ending | shares	105,841
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Balance at beginning | $ / shares	$ 0.98
Granted | $ / shares	0.854
Vested | $ / shares	0.50
Forfeited | $ / shares
Balance at ending | $ / shares	$ 1.26

[1] These shares vested on March 30, 2019 (Saturday) and were issued on Monday, April 1, 2019.

XML

Stock-based Compensation (Details 3) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Allocated Share-based Compensation Expense	$ 252	$ 698
Research and Development Expense [Member]
Allocated Share-based Compensation Expense	9	29
Selling, General and Administrative Expenses [Member]
Allocated Share-based Compensation Expense	$ 243	$ 669

XML

Stock-based Compensation (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Jul. 12, 2018	Mar. 31, 2019	Dec. 31, 2018
Share price		$ 1.22	$ 0.59
Weighted average grant date fair value of options granted		$ 0.854
Equity Incentive Plan 2018 [Member]
Number of shares authorized	1,000,000
Number of additional shares authorized	2,874,280
Common stock capital shares reserved for future issuance		1,874,589
Equity Incentive Plan 2018 [Member] | Stock Option [Member] | Maximum [Member]
Vesting period		36 months
Equity Incentive Plan 2018 [Member] | Stock Option [Member] | Minimum [Member]
Vesting period		2 months
Stock Option Plan 2008-2009 [Member]
Compensation cost not yet recognized		$ 335
Unvested options weighted average period		24 months

XML

Commitments and Contingencies (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Capital Leases
2019	$ 73
2020	78
2021	63
2022	33
2023	3
Total minimum lease payments	250
Operating Lease
2019	203
2020	45
2021
2022
2023
Total minimum lease payments	248
Less: amounts representing interest (6.39%, ranging from 10.48% to 11.56%)	37
Present value of minimum lease payments	213
Less: current installments under capital lease obligations	77
Total long-term portion	$ 212	$ 232

XML

Commitments and Contingencies (Details Narrative) $ in Thousands		3 Months Ended
	Nov. 16, 2016 ft²	Mar. 31, 2019 USD ($)	Mar. 31, 2018 USD ($)
Rent expense		$ 68	$ 61
Lease commitments extended		P24M
Research and Development [Member]
Area | ft²	1,954
Lease expiration date	Nov. 15, 2018
Lease notice period	30 days
Office and Computer Equipment [Member]
Accumulated amortization		$ 521
Research and Development Equipment [Member]
Accumulated amortization		$ 225

XML

Subsequent Events (Details Narrative) - Subsequent Event [Member] - USD ($) $ in Thousands	1 Months Ended	2 Months Ended
	Apr. 30, 2019	May 31, 2019
Warrant [Member]
Subsequent Event [Line Items]
Number of shares issued		1,411,885
Net proceeds from exercise of warrant		$ 1,600
Employees [Member]
Subsequent Event [Line Items]
Number of shares issued	17,042
Two Former Employees [Member]
Subsequent Event [Line Items]
Number of shares issued	3,488