Document And Entity Information
Document And Entity Information - shares | 3 Months Ended | |
Mar. 31, 2022 | May 13, 2022 | |
Document Information Line Items | ||
Entity Registrant Name | SENESTECH, INC. | |
Trading Symbol | SNES | |
Document Type | 10-Q | |
Current Fiscal Year End Date | --12-31 | |
Entity Common Stock, Shares Outstanding | 12,212,950 | |
Amendment Flag | false | |
Entity Central Index Key | 0001680378 | |
Entity Current Reporting Status | Yes | |
Entity Filer Category | Non-accelerated Filer | |
Document Period End Date | Mar. 31, 2022 | |
Document Fiscal Year Focus | 2022 | |
Document Fiscal Period Focus | Q1 | |
Entity Small Business | true | |
Entity Emerging Growth Company | false | |
Entity Shell Company | false | |
Document Quarterly Report | true | |
Document Transition Report | false | |
Entity File Number | 001-37941 | |
Entity Incorporation, State or Country Code | DE | |
Entity Tax Identification Number | 20-2079805 | |
Entity Address, Address Line One | 23460 N | |
Entity Address, Address Line Two | 19th Avenue, Suite 110 | |
Entity Address, City or Town | Phoenix | |
Entity Address, State or Province | AZ | |
Entity Address, Postal Zip Code | 85027 | |
City Area Code | (928) | |
Local Phone Number | 779-4143 | |
Title of 12(b) Security | Common Stock, $0.001 par value | |
Security Exchange Name | NASDAQ | |
Entity Interactive Data Current | Yes |
Balance Sheets
Balance Sheets - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 |
Current assets: | ||
Cash | $ 7,215 | $ 9,326 |
Accounts receivable trade, net | 56 | 77 |
Prepaid expenses | 259 | 230 |
Inventory | 947 | 1,001 |
Deposits | 22 | 22 |
Total current assets | 8,499 | 10,656 |
Right to use asset-operating leases | 471 | 511 |
Property and equipment, net | 334 | 334 |
Total assets | 9,304 | 11,501 |
LIABILITIES AND STOCKHOLDERS’ EQUITY | ||
Short-term debt | 16 | 32 |
Accounts payable | 244 | 333 |
Accrued expenses | 634 | 578 |
Total current liabilities | 894 | 943 |
Operating lease liability | 483 | 523 |
Total liabilities | 1,377 | 1,466 |
Commitments and contingencies (See note 12) | ||
Stockholders’ equity: | ||
Common stock, $0.001 par value, 100,000,000 shares authorized, 12,212,283 and 12,207,283 shares issued and outstanding at March 31, 2022 and December 31, 2021, respectively | 12 | 12 |
Additional paid-in capital | 122,755 | 122,531 |
Accumulated deficit | (114,840) | (112,508) |
Total stockholders’ equity | 7,927 | 10,035 |
Total liabilities and stockholders’ equity | $ 9,304 | $ 11,501 |
Balance Sheets (Parentheticals)
Balance Sheets (Parentheticals) - $ / shares | Mar. 31, 2022 | Dec. 31, 2021 |
Statement of Financial Position [Abstract] | ||
Common stock, par value (in Dollars per share) | $ 0.001 | $ 0.001 |
Common stock, authorized | 100,000,000 | 100,000,000 |
Common stock, issued | 12,212,283 | 12,207,283 |
Common stock, outstanding | 12,212,283 | 12,207,283 |
Statements of Operations and Co
Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2022 | Mar. 31, 2021 | |
Income Statement [Abstract] | ||
Sales | $ 195 | $ 88 |
Cost of sales | 105 | 50 |
Gross profit | 90 | 38 |
Operating expenses: | ||
Research and development | 516 | 455 |
Selling, general and administrative | 1,907 | 1,422 |
Total operating expenses | 2,423 | 1,877 |
Net operating loss | (2,333) | (1,839) |
Other income (expense): | ||
Interest income | 2 | 2 |
Interest expense | (1) | (5) |
Other income | 21 | |
Total other income | 1 | 18 |
Net loss and comprehensive loss | $ (2,332) | $ (1,821) |
Weighted average common shares outstanding - basic and fully diluted (in Shares) | 12,209,005 | 8,137,038 |
Net loss per common share - basic and fully diluted (in Dollars per share) | $ (0.19) | $ (0.22) |
Statements of Changes in Stockh
Statements of Changes in Stockholders’ Equity (Deficit) (Unaudited) - USD ($) $ in Thousands | Common Stock | Additional Paid-In Capital | Accumulated Deficit | Total |
Balance at Dec. 31, 2020 | $ 5 | $ 108,119 | $ (104,240) | $ 3,884 |
Balance (in Shares) at Dec. 31, 2020 | 5,099,512 | |||
Stock-based compensation | 155 | 155 | ||
Issuance of common stock, sold for cash, net | $ 6 | 12,586 | 12,592 | |
Issuance of common stock, sold for cash, net (in Shares) | 6,163,854 | |||
Issuance of common stock upon exercise of warrants, net | $ 1 | 1,208 | 1,209 | |
Issuance of common stock upon exercise of warrants, net (in Shares) | 900,680 | |||
Issuance of common stock upon cashless exercise of warrants | (171) | (171) | ||
Net loss | (1,821) | (1,821) | ||
Balance at Mar. 31, 2021 | $ 12 | 121,897 | (106,061) | 15,848 |
Balance (in Shares) at Mar. 31, 2021 | 12,164,046 | |||
Balance at Dec. 31, 2021 | $ 12 | 122,531 | (112,508) | 10,035 |
Balance (in Shares) at Dec. 31, 2021 | 12,207,283 | |||
Stock-based compensation | 221 | 221 | ||
Issuance costs of common stock for service | 3 | 3 | ||
Issuance costs of common stock for service (in Shares) | 5,000 | |||
Net loss | (2,332) | (2,332) | ||
Balance at Mar. 31, 2022 | $ 12 | $ 122,755 | $ (114,840) | $ 7,927 |
Balance (in Shares) at Mar. 31, 2022 | 12,212,283 |
Statements of Cash Flows (Unaud
Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2022 | Mar. 31, 2021 | |
CASH FLOWS FROM OPERATING ACTIVITIES | ||
Net loss | $ (2,332) | $ (1,821) |
Adjustments to reconcile net loss to net cash used in operating activities: | ||
Depreciation and amortization | 66 | 73 |
Stock-based compensation | 224 | 155 |
(Increase) decrease in current assets: | ||
Accounts receivable - trade | 21 | (2) |
Other assets | 5 | |
Prepaid expenses | (29) | (182) |
Inventory | 54 | 40 |
Increase (decrease) in current liabilities: | ||
Accounts payable | (89) | (229) |
Accrued expenses | 56 | (54) |
Net cash used in operating activities | (2,029) | (2,015) |
CASH FLOWS FROM INVESTING ACTIVITIES | ||
Purchase of property and equipment | (66) | (63) |
Net cash used in investing activities | (66) | (63) |
CASH FLOWS FROM FINANCING ACTIVITIES | ||
Proceeds from the issuance of common stock, net | 12,421 | |
Repayments of notes payable | (3) | (17) |
Repayments of finance lease obligations | (13) | (13) |
Proceeds from the exercise of warrants | 1,209 | |
Net cash (used in) provided by financing activities | (16) | 13,600 |
NET CHANGE IN CASH | (2,111) | 11,522 |
CASH AT BEGINNING OF PERIOD | 9,326 | 3,643 |
CASH AT END OF PERIOD | 7,215 | 15,165 |
SUPPLEMENTAL INFORMATION: | ||
Interest paid | 1 | 5 |
Income taxes paid |
Organization and Description of
Organization and Description of Business | 3 Months Ended |
Mar. 31, 2022 | |
Organization and Description of Business [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. We subsequently reincorporated in the state of Delaware in November 2015. Our corporate headquarters is in Phoenix, Arizona. We have developed and are commercializing a global, proprietary technology for managing animal pest populations, initially rat populations, through fertility control. Although there are myriad tools available to control rat populations, most rely on some form of lethal method to achieve effectiveness. Each of these solutions is inherently limited by rat species’ resilience and survival mechanisms as well as their extraordinary rate of reproduction. ContraPest ® Rats have plagued humanity throughout history. They pose significant threats to the health and food security of many communities. In addition, rodents cause significant product loss and damage through consumption and contamination. Rats also cause significant damage to critical infrastructure by burrowing beneath foundations and gnawing on electrical wiring, insulation, fire proofing systems, electronics and equipment. The most prevalent solution to rat infestations is the use of increasingly powerful rodenticides. Although these solutions provide short term results, there are growing concerns about secondary exposure and bioaccumulation of rodenticides in the environment, as well as concerns about rodenticides that have no antidotes. The pest management industry and Pest Management Professionals (“PMPs”) are being asked for new solutions that are both effective and less toxic. Our goal is to provide customers with not only a highly effective solution to combat their rat problems, but also offer a non-lethal option to serve customers that are looking to decrease or remove the amount of rodenticide used in their pest control programs. ContraPest is a liquid bait containing the active ingredients 4-vinylcyclohexene diepoxide (“VCD”) and triptolide. ContraPest limits reproduction of male and female rats beginning with the first breeding cycle following consumption. ContraPest is being marketed for use in controlling Norway and roof rat populations. SenesTech began the registration process with the United States Environmental Protection Agency (the “EPA”) for ContraPest on August 23, 2015. On August 2, 2016, the EPA granted an unconditional registration for ContraPest as a Restricted Use Product (“RUP”), due to the need for applicator expertise for deployment. On October 18, 2018, the EPA approved the removal of the RUP 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. To date, we have received registration for ContraPest in all 50 states and the District of Columbia, 48 of which have approved the removal of the Restricted Use designation. In addition to product registration, the EPA also approves all labeling (the container label, instructional inserts, and the Safety Data Sheet (SDS)) of ContraPest. Generally, states accept the EPA approved label as is. ContraPest’s labeling was submitted to states at initial registration and is resubmitted during state scheduled reregistration or for any significant labeling change requiring EPA approval. We expect to continue to pursue regulatory approvals and amendments to the existing U.S. registration for ContraPest to broaden the marketability and use of ContraPest, and if ContraPest begins to generate sufficient revenue, regulatory approvals for additional jurisdictions beyond the United States. In certain cases, our EPA and state registrations require completion of additional testing and certifications even though we have received approval for the product or its labelling. We continue to seek to comply with these requirements. We also continue to research and develop enhancements to ContraPest that align with our target verticals and other potential fertility control options for additional species. Going Concern Our financial statements as of March 31, 2022, December 31, 2021 and March 31, 2021 were prepared under the assumption that we would continue as a going concern, the report of our independent registered public accounting firm that accompanies our financial statements for the years ended December 31, 2021 and December 31, 2020 contains a going concern qualification in which such firm expressed substantial doubt about our ability to continue as a going concern, based on the financial statements at that time. Specifically, as noted above, we have incurred operating losses since our inception, and we expect to continue to incur significant expenses and operating losses for the foreseeable future. These prior losses and expected future losses have had, and will continue to have, an adverse effect on our financial condition. If we encounter continued issues or delays in the commercialization of ContraPest, our prior losses and expected future losses could have an adverse effect on our financial condition and negatively impact our ability to fund continued operations, obtain additional financing in the future and continue as a going concern. There are no assurances that such financing, if necessary, will be available to us at all or will be available in sufficient amounts or on reasonable terms. Our financial statements do not include any adjustments that may result from the outcome of this uncertainty. If we are unable to generate additional funds in the future through additional financings, sales of our products, licensing fees, royalty payments or from other sources or transactions, we will exhaust our resources and will be unable to continue operations. Liquidity and Capital Resources Since our inception, we have sustained significant operating losses in the course of our research and development and commercialization 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. 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. See Note 10 for a description of our public equity sales. We have also raised capital through debt financing, consisting primarily of convertible notes and government loan programs, and, to a lesser extent, payments received in connection with product sales, research grants and licensing fees. Through March 31, 2022, we received net proceeds of $89.6 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 $1.7 million in net product sales. As of March 31, 2022, we had an accumulated deficit of $114.8 million and cash and cash equivalents of $7.2 million. Our ultimate success depends upon the outcome of a combination of factors, including the following: (i) successful commercialization of ContraPest and maintaining and obtaining regulatory approval of our products and 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, 2022, in combination with anticipated revenue and any additional sales of our equity securities, will be sufficient to fund our current operations for at least the next 9 to 12 months. We have evaluated and will continue to evaluate our operating expenses and will concentrate our resources toward the successful commercialization of ContraPest in the United States. However, if anticipated revenue targets and margin targets are not achieved or expenses are more than we have budgeted, we may need to raise additional financing before that time. If we need more financing, including within the next 9 to 12 months, and we are unable to raise necessary capital through the sale of our securities, we may be required to take other measures that could impair our ability to be successful and operate as a going concern. In any event, we may require additional capital in order to fund our operating losses and research and development activities before we become profitable and may opportunistically raise capital. 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 or discontinue operations. Basis of Presentation Our accompanying unaudited condensed financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (the “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 our opinion, the unaudited condensed financial statements include all material adjustments, all of which are of a normal and recurring nature, necessary to present fairly our financial position as of March 31, 2022, our operating results for the three months ended March 31, 2022 and 2021, and our cash flows for the three months ended March 31, 2022 and 2021. The accompanying financial information as of December 31, 2021 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 our Annual Report on Form 10-K for the year ended December 31, 2021, filed with the SEC on March 29, 2022. All amounts shown in these financial statements and accompanying notes are in thousands, except percentages and per share and share amounts. |
Summary of Significant Accounti
Summary of Significant Accounting Policies | 3 Months Ended |
Mar. 31, 2022 | |
Organization and Description of Business [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 our financial statements include the valuation of preferred stock, if issued, 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. Cash and Cash Equivalents We consider money market fund investments to be cash equivalents. We had cash equivalents in the form of money market fund investment of $6,794 and $8,793 at March 31, 2022 and December 31, 2021, respectively, included in cash as reported. Accounts Receivable-Trade Accounts receivable-trade consist primarily of receivables from customers. We provide 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. We did not have any allowance for doubtful trade receivables at March 31, 2022 or at December 31, 2021. 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. Raw materials are stocked to reduce the risk of impact on manufacturing for potential supply interruptions due to the COVID-19 pandemic or long lead times on certain ingredients. Components of inventory are: March 31, December 31, 2022 2021 Raw materials $ 890 $ 937 Work in progress 4 5 Finished goods 79 88 Total inventory 973 1,030 Less: Reserve for obsolete (26 ) (29 ) Total net inventory $ 947 $ 1,001 Prepaid Expenses Prepaid expenses consist primarily of payments made for director and officer insurance, director compensation, rent, legal and inventory purchase deposits and seminar/trade show fees to be expensed in the current year. Property and Equipment Property and equipment are stated at cost less accumulated depreciation. Equipment held under finance 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 finance leases is amortized over the shorter of the lease term or estimated useful life of the asset. We incur repair and maintenance costs on our 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, we compare 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. We have not recorded an impairment of long-lived assets since its inception. Revenue Recognition Effective January 1, 2018, we adopted Accounting Standards Codification (“ASC”) 606 — Revenue from Contracts with Customers . We recognize revenue when product is shipped at a fixed selling price on payment terms of 30 to 120 days from invoicing. We recognize other revenue earned from pilot studies, consulting and implementation services upon the performance of specific services under the respective service contract. We derive revenue primarily from commercial sales of products, net of discounts and promotions, as well as consulting and implementation services provided in conjunction with our product deployments. 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, regulatory compliance costs, as well as manufacturing costs associated with process improvement and other research. Research and development expenses include an allocation of facilities related costs, including depreciation of equipment. Stock-Based Compensation Stock-based awards, consisting of stock options and restricted stock units expected to be settled in shares of our common stock, are recorded as equity awards. The grant date fair value of these awards is measured using the Black-Scholes option pricing model for stock options and grant date market value for restricted stock units. We expense the grant date fair value of stock options on a straight-line basis over their respective vesting periods. The stock-based compensation expense recorded for the three months ended March 31, 2022 and 2021, is as follows: Three Months Ended 2022 2021 Research and development $ 1 $ 2 Selling, general and administrative 223 153 Total stock-based compensation expense $ 224 $ 155 See Note 11 for additional discussion on stock-based compensation. Income Taxes We account 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. We record net deferred tax assets to the extent we believe 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, we consider 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. We apply a more-likely-than-not recognition threshold for all tax uncertainties. Only those benefits that have a greater than 50% likelihood of being sustained upon examination by the taxing authorities are recognized. Based on our evaluation, we have concluded there are no significant uncertain tax positions requiring recognition in our financial statements. We recognize interest and/or penalties related to uncertain tax positions in income tax expense. There are no uncertain tax positions as of March 31, 2022 or December 31, 2021 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, 2022 and 2021. 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, 2022 2021 Common stock purchase warrants 4,531,447 4,553,733 Restricted stock units 667 31,405 Common stock options 1,477,320 506,852 Total 6,009,434 5,091,990 Accounting Standards Issued but Not Yet Adopted 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 condensed consolidated financial statements. |
Fair Value Measurements
Fair Value Measurements | 3 Months Ended |
Mar. 31, 2022 | |
Fair Value Measurements [Abstract] | |
Fair Value Measurements | Note 3 - Fair Value Measurements The carrying amounts of our financial instruments, including accounts payable and accrued liabilities, approximate fair value due to their short maturities. The estimated fair value of our notes, not recorded at fair value, are recorded at cost or amortized cost which was deemed to estimate fair value. |
Credit Risk
Credit Risk | 3 Months Ended |
Mar. 31, 2022 | |
Risks and Uncertainties [Abstract] | |
Credit Risk | Note 4 - Credit Risk We are potentially subject to concentrations of credit risk in our accounts receivable. Credit risk with respect to receivables is limited due to the number of companies comprising our customer base. We did not have any potentially uncollectable accounts at March 31, 2022 or December 31, 2021 and therefore, did not record a reserve for uncollectable accounts at March 31, 2022 or December 31, 2021. We do not require collateral or other securities to support its accounts receivable. |
Prepaid Expenses
Prepaid Expenses | 3 Months Ended |
Mar. 31, 2022 | |
Prepaid Expenses [Abstract] | |
Prepaid Expenses | Note 5 - Prepaid Expenses Prepaid expenses consist of the following: March 31, December 31, 2022 2021 Director, officer and other insurance $ 169 $ 109 Marketing programs and conferences 34 66 Patents 25 41 Engineering, software licenses and other 17 12 Engineering, software licenses and other 14 2 Total prepaid expenses $ 259 $ 230 |
Property and Equipment
Property and Equipment | 3 Months Ended |
Mar. 31, 2022 | |
Property, Plant and Equipment [Abstract] | |
Property and Equipment | Note 6 - Property and Equipment Property and equipment, net consist of the following: Useful March 31, December 31, Life 2022 2021 Research and development equipment 5 years $ 1,437 $ 1,425 Office and computer equipment 3 years 786 762 Autos 5 years 54 54 Furniture and fixtures 7 years 41 41 Leasehold improvements * 117 112 Construction in progress 70 45 2,505 2,439 Less accumulated depreciation and amortization (2,171 ) (2,105 ) Total $ 334 $ 334 * Shorter of lease term or estimated useful life Depreciation and amortization expense was approximately $66 and $73 for the three months ended March 31, 2022 and 2021, respectively. |
Accrued Expenses
Accrued Expenses | 3 Months Ended |
Mar. 31, 2022 | |
Accrued Expenses [Abstract] | |
Accrued Expenses | Note 7 - Accrued Expenses Accrued expenses consist of the following: March 31, December 31, 2022 2021 Compensation and related benefits $ 584 $ 524 Legal services - 17 Product warranty 23 18 Personal property and franchise tax 13 5 Other 14 14 Total accrued expenses $ 634 $ 578 |
Borrowings
Borrowings | 3 Months Ended |
Mar. 31, 2022 | |
Debt Disclosure [Abstract] | |
Borrowings | Note 8 - Borrowings A summary of our borrowings, including finance lease obligations, is as follows: March 31, December 31, 2022 2021 Short-term debt: Finance lease obligations $ 14 $ 27 Other promissory notes 2 5 Total $ 16 $ 32 Finance Lease Obligations Finance lease obligations at March 31, 2022 was for manufacturing equipment leased through ENGS Commercial Finance Co. This finance lease expires on April 18, 2022 and carries an interest rate of 11.4%. Other Promissory Notes Also included in the table above is a note payable to Fidelity Capital for the financing of a computing fixed asset. This note expires on July 1, 2022 and carries interest rate of 13.3%. |
Common Stock Warrants and Commo
Common Stock Warrants and Common Stock Warrant Liability | 3 Months Ended |
Mar. 31, 2022 | |
Common Stock Warrants and Common Stock Warrant Liability [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, 2022 by warrant type.: Balance Balance Balance Issue Date Warrant Type Term Exercise Price December 31, Issued Exercised Expired December 31, Issued Exercised Expired March 31, November 21, 2017 Common Stock Offering Warrants November 21, 2022 $ 1.3659 (1) 143,501 - (21,787 ) - 121,714 - - - 121,714 June 20, 2018 Warrant Reissue December 20, 2023 $ 36.40 56,696 - - - 56,696 - - - 56,696 August 13, 2018 Rights Offering Warrants July 25, 2023 $ 23.00 202,943 - (499 ) - 202,444 - - - 202,444 August 13, 2018 Dealer Manager Warrants August 13, 2023 $ 34.50 13,393 - - - 13,393 - - - 13,393 July 16, 2019 Dealer Manager Warrants July 11, 2024 $ 33.75 8,334 - - - 8,334 - - - 8,334 January 28, 2020 Registered Direct Offering July 28, 2025 $ 9.00 177,500 - - - 177,500 - - - 177,500 January 28, 2020 Dealer Manager Warrants July 28, 2025 $ 10.00 13,315 - - - 13,315 - - - 13,315 March 6, 2020 Dealer Manager Warrants March 4, 2025 $ 3.76 13,228 - - - 13,228 - - - 13,228 April 21, 2020 Dealer Manager Warrants April 21, 2025 $ 3.97 118,073 - - - 118,073 - - - 118,073 April 24, 2020 Registered Direct Offering April 24, 2025 $ 3.05 50,000 - - - 50,000 - - - 50,000 October 26, 2020 Private Warrant Inducement April 27, 2026 $ 1.73 1,700,680 (700,680 ) 1,000,000 - - - 1,000,000 October 26, 2020 Dealer Manager Warrants April 27, 2026 $ 2.16 85,034 - 85,034 - - - 85,034 February 2, 2021 Private Placement Agreement August 2, 2026 $ 2.216 - 2,194,427 - - 2,194,427 - - - 2,194,427 February 2, 2021 Dealer Manager Warrants August 2, 2026 $ 2.848 - 329,164 - - 329,164 - - - 329,164 March 23, 2021 Dealer Manager Warrants March 23, 2026 $ 2.50 - 148,125 - - 148,125 - - - 148,125 2,582,697 4,531,447 4,531,447 (1) The initial exercise price of these warrants was $30.00 per share. Pursuant to antidilution price adjustment protection contained within these warrants, the initial exercise price of these warrants was adjusted downward to $29.40 on July 24, 2018, the record date of the 2018 Rights Offering (defined herein) and downward to $19.00 per share on August 13, 2018. These warrants were further adjusted downward from $19.00 to $7.13 and to $2.1122 on January 28, 2020 and March 4, 2020, respectively, in connection with separate registered direct offerings. These warrants were further adjusted downward from $2.1122 to $1.3659 on October 26, 2020 in connection with a registered direct offering. These warrants are subject to further adjustment pursuant to antidilution price adjustment protection. Outstanding Warrants As of March 31, 2022, we had 4,531,447 shares of common stock issuable upon exercise of outstanding common stock warrants, at a weighted-average exercise price of $4.00 per share. On November 21, 2017, we issued a total of 232,875 detachable common stock warrants issued with the second public offering of 293,000 shares of our common stock at $20.00 per share. The common stock warrant is exercisable until five years from the date of grant. Our common stock and detachable warrants exist independently as separate securities. As such, we estimated the fair value of the common stock warrants, exercisable at $30.00 per share, to be $661 using a lattice model based on the following significant inputs: common stock price of $20.00; comparable company volatility of 73.8%; remaining term five years; dividend yield of 0% and risk-free interest rate of 1.87. The initial exercise price of these warrants was $30.00 per share, which adjusted downward to $29.40 on July 24, 2018, the record date of the 2018 Rights Offering, and downward to $19.00 per share on August 13, 2018, the date of the 2018 Rights Offering, pursuant to antidilution price adjustment protection contained within these warrants. The exercise price of the warrants was adjusted downward to $7.13 on January 28, 2020 in connection with a private placement of common stock. Per guidance of ASC 260 – Earnings Per Share The exercise price of the warrants was adjusted downward to $2.1122 on March 4, 2020 in connection with a private placement of common stock. Per guidance of ASC 260, we recorded a deemed dividend of $129 on the 143,501 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 March 4, 2020, common stock price of $2.88; comparable company volatility of 74.5%; remaining term 2.71 years; dividend yield of 0% and risk-free interest rate of 0.68%. The exercise price of the warrants was adjusted downward to $1.3659 on October 26, 2020 in connection with an inducement offering of common stock. Per guidance of ASC 260, we recorded a deemed dividend of $22 on the 143,501 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 October 26, 2020, common stock price of $1.47; comparable company volatility of 96.5%; remaining term 2.08 years; dividend yield of 0% and risk-free interest rate of 0.18%. On June 20, 2018, we entered into an agreement with a holder of 56,696 of the November 2017 warrants to exercise its original warrant representing 56,696 shares of common stock for cash at the $30.00 exercise price for gross proceeds of $1.7 million, and we issued to holder a new warrant to purchase 56,696 shares of common stock at an exercise price of $36.40 per share. The new warrant did not contain the antidilution price adjustment protection that was contained within the exercised warrants. In June 2018, we recorded stock compensation expense of $1,700 representing the fair value of the of 56,696 inducement warrants issued. We estimated the fair value of the common stock warrants, exercisable at $36.40 per share, to be $1,700 using a Black Scholes model based on the following significant inputs: common stock price of $42.20; comparable company volatility of 72.6%; remaining term five years; dividend yield of 0% and risk-free interest rate of 2.8%. Also, in June 2018, an additional 17,088 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 267,853 shares of our common stock (the “2018 Rights Offering), we issued 267,853 warrants to purchase shares of our common stock at an exercise price of $23.00 per share. We estimated the fair value of the common stock warrants, exercisable at $23.00 per share, to be $3,600 using a Monte Carlo model based on the following significant inputs: common stock price of $18.80; comparable company volatility of 159.0%; remaining term five years; dividend yield of 0% and risk-free interest rate of 2.77%. In connection with the closing of the 2018 Rights Offering, we issued a warrant to purchase 13,393 shares of common stock to Maxim Partners LLC, an affiliate of the dealer-manager of the 2018 Rights Offering. We estimated the fair value of the common stock warrants, exercisable at $34.50 per share, to be $169 using a using a Monte Carlo model based on the following significant inputs: common stock price of $18.80; comparable company volatility of 159.0%; remaining term five years; dividend yield of 0% and risk-free interest rate of 2.77%. Common Stock Warrant Issued to Underwriter of Common Stock Offering In July 2019, we issued to H.C. Wainwright & Co., as placement agent, a warrant to purchase 8,334 shares of common stock at an exercise price of $33.75 per share as consideration for providing services in connection with a common stock offering in July 2019. 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. We estimated the fair value of the common stock warrants, exercisable at $33.75 per share, to be $127 using a lattice model based on the following significant inputs: common stock price of $26.80; comparable company volatility of 133.3%; remaining term five years; dividend yield of 0% and risk-free interest rate of 2.07%. Common Stock Warrants Issued in January and March 2020 Private Placements In January and March 2020, in separate private placements concurrent with registered direct offerings (collectively, the “2020 Registered Direct Offerings”) of shares of our common stock, we also issued warrants to purchase an aggregate of up to 353,872 shares of common stock to certain institutional and accredited investors that participated in the 2020 Registered Direct Offerings (the “2020 Warrants”). The warrants were issued in reliance on the exemption from registration provided by Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”) and Rule 506(b) of Regulation D promulgated thereunder. Terms used but not otherwise defined herein will have the meanings given them in the warrants, attached as Exhibit 4.1 to our Current Report on Form 8-K filed with the SEC on January 28, 2020 and our Current Report on Form 8-K filed with the SEC on March 6, 2020. The warrants issued in January 2020 to purchase 177,500 shares of common stock have an exercise price of $9.00 per share, are exercisable after July 28, 2020 and will expire July 28, 2025. We estimated the fair value of the common stock warrants, exercisable at $9.00 per share, to be $813 using a Black Scholes model based on the following significant inputs: common stock price of $7.90; comparable company volatility of 73.8%; remaining term five years; dividend yield of 0% and risk-free interest rate of 1.53%. The warrants issued in March 2020 to purchase 176,372 shares of common stock have an exercise price of $2.88 per share, are immediately exercisable and will expire September 8, 2025. We estimated the fair value of the common stock warrants, exercisable at $2.88 per share, to be $242 using a Black Scholes model based on the following significant inputs: common stock price of $2.35; comparable company volatility of 74.8%; remaining term five and one-half years; dividend yield of 0% and risk-free interest rate of 0.39%. For so long as the 2020 Warrants remain outstanding, the exercise price and number of shares of common stock issuable upon exercise of the warrants are subject to adjustment as follows: (a) upon payment of a stock dividend or other distribution on a class or series of shares common stock, not including shares issued under this warrant; (b) upon subdivision (by stock spilt, stock dividend, recapitalization, or otherwise) or combination (by reverse stock split or otherwise) of shares of common stock; or (c) upon the issuance of any shares of capital stock by reclassification of shares of the common stock. In the event that we declare or make any dividend or other distribution of our assets to holders of our common stock, each 2020 Warrant holder will be entitled to participate in such distribution to the same extent that such holder would have participated therein if the holder had held the number of shares of common stock acquirable upon exercise of the 2020 Warrant. In the event of a Fundamental Transaction, as described in the 2020 Warrants and generally including the sale, transfer or other disposition of all or substantially all of our properties or assets; our consolidation or merger with or into another person or reorganization; a recapitalization, reorganization or reclassification in which our common stock is converted into other securities, cash or property; or any acquisition of our outstanding common stock that results in any person or group becoming the beneficial owner of 50% of the voting power represented by our outstanding common stock, then the holders of the 2020 Warrants will be entitled to receive upon exercise of such warrants the kind and amount of securities, cash, assets or other property that the holders would have received had they exercised the 2020 Warrants immediately prior to such Fundamental Transaction. Subject to certain limitations, in the event of a Fundamental Transaction the 2020 Warrant holder may at its option require us or any Successor Entity to purchase such warrant from the holder by paying to the holder an amount of cash equal to the Black Scholes Value of the remaining unexercised portion of the 2020 Warrant on the date of the consummation of the Fundamental Transaction. Any time that we grant, issue, or sell any securities pro rata to all of the record holders of our common stock (the “2020 Purchase Right”), each holder of 2020 Warrants will be entitled to acquire the aggregate amount of securities that the holder could have acquired if the holder had held the number of shares of common stock acquirable upon exercise of the applicable 2020 Warrant. However, to the extent that an exercise of a 2020 Purchase Right would exceed the Beneficial Ownership Limitation (defined below), then to such extent the 2020 Purchase Right will be held in abeyance until such time, if ever, that complete exercise of the 2020 Purchase Right would not exceed the Beneficial Ownership Limitation. After the Initial Exercisability Date, the 2020 Warrants will be exercisable, at the option of each holder, in whole or in part, by delivering to us a duly executed exercise notice accompanied by payment in full for the number of shares of our common stock purchased upon such exercise. If, at the time a holder exercises the 2020 Warrant (but not sooner than six months following the date of such warrant), a registration statement registering the issuance of the shares of common stock underlying the 2020 Warrants under the Securities Act is not then effective or available, nor is any current prospectus thereto available, and an exemption from registration under the Securities Act is not available for the issuance of such shares, then in lieu of making the cash payment otherwise contemplated to be made to us upon such exercise in payment of the aggregate exercise price, the holder may elect instead to receive upon such exercise (either in whole or in part) the number of shares of common stock determined according to a formula set forth in the 2020 Warrant. Limitations on Exercise Except as otherwise provided in the 2020 Warrants or by virtue of such holder’s ownership of shares of our common stock, the holders of the 2020 Warrants do not have the rights or privileges of holders of our common stock, including any voting rights, unless and until they exercise such warrants. Common Stock Warrants Issued in April 2020 Public Offering On April 24, 2020, in connection with a previously announced public offering of 145,586 Class A Units and 1,428,722 Class B Units, we issued warrants to purchase 1,574,308 shares of common stock to the participants in the public offering and have an exercise price of $3.05 per share (the “April 2020 Warrants”). These warrants are immediately exercisable and will expire April 24, 2025. The Common Stock, Pre-Funded Warrants and Warrants sold in this Public Offering were offered and sold pursuant to a registration statement on Form S-1 (File No. 333-236302) initially filed with the SEC on February 7, 2020, as amended (“Registration Statement”), which was declared effective by the SEC on February 14, 2020. The Post-Effective Amendment No. 2 to the Registration Statement was declared effective by the SEC on April 21, 2020. We estimated the fair value of the common stock warrants, exercisable at $3.05 per share, to be $2,402 using a Black Scholes model based on the following significant inputs: common stock price of $2.40; comparable company volatility of 87.9%; remaining term five years; dividend yield of 0% and risk-free interest rate of 0.18%. Common Stock Warrants Issued to Placement Agent in 2020 Registered Direct Offerings and Private Placement In connection with the separate private placements concurrent with registered direct offerings of shares of our common stock in January and March 2020, we issued to H.C. Wainwright & Co., LLC, as placement agent, a warrant to purchase 13,228 shares of common stock and a warrant to purchase 13,313 shares of common stock. The warrants were issued in reliance on the exemption from registration provided by Section 4(a)(2) of the Securities Act and Rule 506(b) of Regulation D promulgated thereunder. These warrants have substantially similar terms as the 2020 Warrants described above, except that the placement agent warrant issued in January 2020 has an exercise price of $10.00 per share, and the placement agent warrant issued in March 2020 has an exercise price of $3.7563 per share. We estimated the fair value of the common stock warrants issued in January, with an exercise price of $10.00 per share, to be $58 using a Black Scholes model based on the following significant inputs: common stock price of $7.90; comparable company volatility of 73.8%; remaining term five years; dividend yield of 0% and risk-free interest rate of 1.53%. We estimated the fair value of the common stock warrants issued in March, with an exercise price of $3.7563 per share, to be $17 using a Black Scholes model based on the following significant inputs: common stock price of $2.35; comparable company volatility of 74.8%; remaining term five and one-half years; dividend yield of 0% and risk-free interest rate of 0.39%. In connection with the public offering of 145,586 Class A Units and 1,428,722 Class B Units on April 24, 2020, we issued to H.C. Wainwright & Co., LLC, as placement agent, warrants to purchase 118,073 shares of common stock. The warrants were issued in reliance on the exemption from registration provided by Section 4(a)(2) of the Securities Act and Rule 506(b) of Regulation D promulgated thereunder. These warrants have substantially similar terms as the April 2020 Warrants described above, except that the placement agent warrant issued has an exercise price of $3.97 per share. We estimated the fair value of the common stock warrants issued in April, with an exercise price of $3.97 per share, to be $167 using a Black Scholes model based on the following significant inputs: common stock price of $2.40; comparable company volatility of 87.9%; remaining term five and one-half years; dividend yield of 0% and risk-free interest rate of 0.18%. Common Stock Warrants Issued in October 2020 Private Warrant Inducement In October 2020, in connection with an inducement agreement with an existing accredited investor to exercise 1,700,680 outstanding warrants to purchase an equal number of shares of our common stock, we issued new unregistered warrants to purchase up to an aggregate of 1,700,680 shares of common stock at an exercise price of $1.725 per share. The warrants issued were immediately exercisable with an exercise period of five and one-half years from the date of issuance. The Original Warrants were issued on March 6, 2020 and on April 24, 2020. Pursuant to the Letter Agreement, the per share exercise price of the Original Warrants were reduced from $2.88 and $3.05, respectively, to $1.725. We estimated the fair value of the common stock warrants, exercisable at $1.725 per share, to be $1,806 using a Black Scholes model based on the following significant inputs: common stock price of $1.47; comparable company volatility of 96.5%; remaining term five and one-half years; dividend yield of 0% and risk-free interest rate of 0.18%. Common Stock Warrants Issued to Placement Agent in October 2020 Inducement Offering In connection with the private warrant inducement in October 2020 of 1,700,680 shares of our common warrants, we issued to H.C. Wainwright & Co., LLC, as placement agent, warrants to purchase 85,034 shares of common stock. These warrants have substantially similar terms as the 2020 Warrants described above, except that the placement agent warrant issued in October 2020 has an exercise price of $2.156 per share. We estimated the fair value of these common stock warrants, with an exercise price of $2.156 per share, to be $86 using a Black Scholes model based on the following significant inputs: common stock price of $1.47; comparable company volatility of 96.5%; remaining term 5.5 years; dividend yield of 0% and risk-free interest rate of 0.18%. Common Stock Warrants Issued in February 2021 Private Placement Agreement In February 2021, in connection with a private placement agreement with certain institutional and accredited investors, we issued common stock warrants to purchase up to an aggregate of 2,194,427 shares of common stock at an exercise price of $2.216 per share. The warrants were exercisable immediately and have an exercise period of five and one-half years from the date of issuance. The warrant holder may not exercise any portion of such holder’s warrants to the extent that the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of our outstanding shares of common stock immediately after exercise, except that upon at least 61 days’ prior notice from the holder to us, the holder may increase the beneficial ownership limitation to up to 9.99% of the number of shares of common stock outstanding immediately after giving effect to the exercise. We estimated the fair value of the common stock warrants, exercisable at $2.216 per share, to be $3,052 using a Black Scholes model based on the following significant inputs: common stock price of $1.93; comparable company volatility of 95.6%; remaining term five and one-half years; dividend yield of 0% and risk-free interest rate of 0.18%. Common Stock Warrants Issued to Placement Agent in February 2021 Private Placement Agreement In connection with the private placement in February 2021, we issued to H.C. Wainwright & Co., LLC, as placement agent, warrants to purchase up to 329,164 shares of common stock with an exercise price of $2.8481 per share. The warrants are exercisable immediately and have an exercise period of five and one-half years from the date of issuance. We estimated the fair value of these common stock warrants, with an exercise price of $2.8481 per share, to be $435 using a Black Scholes model based on the following significant inputs: common stock price of $1.93; comparable company volatility of 95.6%; remaining term five and one-half years; dividend yield of 0% and risk-free interest rate of 0.18%. Common Stock Warrants Issued to Placement Agent in March 2021 Registered Direct Offering On March 23, 2021, we consummated a registered direct offering with certain institutional investors and issued an aggregate of 1,975,000 shares of our common stock, par value $0.001 per share at a purchase price of $2.00 per share for gross proceeds to us of approximately $3.95 million, before deducting fees payable to the placement agent and other estimated offering expenses payable by us. The 1,975,000 shares of common stock sold in the offering were offered and sold pursuant to a prospectus, dated August 24, 2018, and a prospectus supplement, dated March 22, 2021, in connection with a takedown from our shelf registration statement on Form S-3 (File No. 333-225712). In connection with the registered direct offering in March 2021, we issued to H.C. Wainwright & Co., LLC, as the placement agent, warrants to purchase up to 148,125 shares of common stock. The placement agent warrants will be exercisable commencing six months following the date of issuance, expire five years following the date of sale and have an exercise price per share of $2.50 per share. The placement agent warrants, and the shares of common stock issuable upon exercise thereof, will be issued in reliance on the exemption from registration provided in Section 4(a)(2) under the Securities Act of 1933, as amended, and Regulation D promulgated thereunder. We estimated the fair value of these common stock warrants, with an exercise price of $2.50 per share, to be $181 using a Black Scholes model based on the following significant inputs: common stock price of $1.76; comparable company volatility of 100.8%; remaining term five years; dividend yield of 0% and risk-free interest rate of 0.31%. Deemed Dividend Adjustment-Warrant Modified Terms Revaluation On March 3, 2020, we issued an aggregate of 51,414 common shares in a cashless exercise of 56,625 warrants issued in December 2016 and November 2017. Consideration for the exercise of these warrants was the full settlement of an outstanding litigation reserve of $238. On October 26, 2020, in connection with the private warrant inducement with an existing accredited investor to exercise 1,700,680 outstanding warrants (“Original Warrants”), we agreed to modify the terms of the original warrants that were originally issued on March 6, 2020 and on April 24, 2020. Pursuant to the agreement, the per share exercise price of the original warrants were reduced from $2.88 and $3.05, respectively, to $1.725. Per recent proposed guidance of ASC 260, we determined that this was an exchange of the existing 1,700,680 warrants that were affected and the difference between the fair value of the warrants immediately prior to modification of terms and immediately after the adjustment was a cost of raising capital and was recorded as a reduction of equity. The difference between the fair value of the warrants immediately prior to modification of terms and immediately after the adjustment was calculated as $237, using a Black Scholes model based on the following significant inputs: On October 26, 2020: common stock price of $1.47; comparable company volatility of 96.5%; remaining term 4.5-4.8 years; dividend yield of 0% and risk-free interest rate of 0.18. |
Stockholders_ Deficit
Stockholders’ Deficit | 3 Months Ended |
Mar. 31, 2022 | |
Stockholders' Equity Note [Abstract] | |
Stockholders’ Deficit | Note 10 - Stockholders’ Deficit Capital Stock We organized under the laws of the state of Nevada on July 27, 2004 and subsequently reincorporated under the laws of the state of Delaware on November 10, 2015. In connection with the reincorporation, as approved by the stockholders, we changed our 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, we amended our Certificate of Incorporation to change our 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, our 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 We had 12,212,283 and 12,207,283 shares of common stock issued and outstanding as of March 31, 2022 and December 31, 2021, respectively. During the three months ended March 31, 2022, we issued 5,000 shares of common stock as follows: ● an aggregate of 5,000 shares in connection with a restricted stock grant that was issued and vested on February 25, 2022 for services. |
Stock-based Compensation
Stock-based Compensation | 3 Months Ended |
Mar. 31, 2022 | |
Share-Based Payment Arrangement [Abstract] | |
Stock-based Compensation | Note 11 - Stock-Based Compensation On June 12, 2018, our stockholders approved the 2018 Equity Incentive Plan (the “2018 Plan”) to replace our 2015 Equity Incentive Plan (the “2015 Plan”). On July 8, 2020, our stockholders approved an amendment to the 2018 Plan to increase the number of shares of common stock available for issuance under the 2018 Plan by 800,000 shares from 50,000 to 850,000. In addition, up to 122,279 shares of our common stock previously reserved for issuance under the 2015 Plan are 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 thereafter cease to be subject to awards outstanding under the 2015 Plan, such as by expiration, cancellation, or forfeiture of such awards. On June 24, 2021, our stockholders approved an amendment to the 2018 Plan to increase the number of shares of common stock available for issuance under the 2018 Plan by 3,000,000 shares. Stock options are generally issued with a per share exercise price equal to no less than fair market value of our common stock 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. Options under the 2018 Plan generally have a term of five years. Certain stock option awards provide for accelerated vesting upon a change in control. As of March 31, 2022, we had 2,453,600 shares of common stock available for issuance under the 2018 Plan. Stock Options We measure the fair value of stock options with service-based vesting criteria to employees, directors and consultants on the date of grant using the Black-Scholes option pricing model. The Black-Scholes valuation model requires us to make certain estimates and assumptions, including assumptions related to the expected price volatility of our stock, the period during which the options will be outstanding, the rate of return on risk-free investments, and the expected dividend yield for our 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, 2022 were as follows: Expected volatility 77.0 % Expected dividend yield — Expected term (in years) 3.5 Risk-free interest rate 1.7 % The weighted average grant date fair value of options granted during the three months ended March 31, 2022 was $0.444 per share, as per the table above. Due to our 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 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 we do 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 our history and expectation of dividend payouts. We have not paid and do 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 Weighted Weighted Aggregate Outstanding at December 31, 2021 1,087,820 $ 4.08 3.9 $ — Granted 390,000 $ 0.82 4.9 $ — Exercised — $ — — $ — Forfeited (500 ) $ — — $ — Expired — $ — — $ — Outstanding at March 31, 2022 1,477,320 $ 3.23 3.2 $ — Exercisable at March 31, 2022 795,019 $ 4.79 2.0 $ — (1) The aggregate intrinsic value in the table was calculated based on the difference between the estimated fair market value of our stock and the exercise price of the underlying options. The estimated stock values used in the calculation were $0.98 and $0.73 per share for the year ended December 31, 2021 and the three months ended March 31, 2022, respectively. Restricted Stock Units The following table summarizes restricted stock unit activity for the three months ended March 31, 2022: Number of Weighted Average Outstanding as of December 31, 2021 667 $ 1.80 Granted 5,000 $ 0.76 Vested (5,000 ) $ 0.76 Forfeited — $ — Outstanding as of March 31, 2022 667 $ 1.80 The stock-based compensation expense was recorded as follows: Three Months Ended 2022 2021 Research and development $ 1 $ 2 Selling, general and administrative 223 153 Total stock-based compensation expense $ 224 $ 155 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, 2022, the total compensation cost related to restricted stock units and unvested options not yet recognized was $533, which will be recognized over a weighted average period of 34 months, assuming the employees and non-employee s |
Commitments and Contingencies
Commitments and Contingencies | 3 Months Ended |
Mar. 31, 2022 | |
Commitments and Contingencies Disclosure [Abstract] | |
Commitments and Contingencies | Note 12 - Commitments and Contingencies Legal Proceedings In July 2020, Kennan E. Kaedar, our former corporate general counsel (the “Plaintiff”), commenced an action against us in the Superior Court of the State of California, for the County of San Diego. The complaint alleges, among other things, that we breached the Plaintiff’s employment contract with us, as well as the implied covenant of good faith and fair dealing, by refusing to issue him the balance of stock options he claims we owe him. In September 2021, the Plaintiff served us and also named the following individuals as defendants: Loretta Mayer, Cheryl Dyer, Thomas C. Chesterman, Kim Wolin, Grover Wickersham, Marc Dumont, Bob Ramsey, Matthew Szot, Julia Williams, and Bill Baker. We do not believe that all of the defendants have yet been served. The Plaintiff alleges that such individuals agreed to knowingly and wrongfully withhold the stock options owed to him and are knowingly in receipt of stolen property. The Plaintiff seeks compensatory damages in excess of $500,000, treble damages and reasonable attorneys’ fees. We do not believe the claims described above have merit and intend to aggressively defend against these accusations. We do not believe that this litigation is likely to have a material effect on our operations. In addition to the matter described above, we may be subject to other 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 other pending or threatened litigation where the ultimate disposition or resolution could have a material adverse effect on our financial position, results of operations or liquidity. Lease Commitments On December 1, 2019, we entered into a lease for our corporate headquarters in Phoenix, Arizona where we lease and occupy approximately 5,529 square feet of office space. This lease expires in November 2024. On August 1, 2020, we entered into a lease for our manufacturing and research facility in Phoenix, Arizona where we occupy approximately 5,105 square feet of manufacturing and warehouse space. This lease expires on November 30, 2024. We believe that our existing facilities are adequate and meet our current needs for business, manufacturing and research. Rent expense was $56 and $54 for the three months ended March 31, 2022 and 2021, respectively. The future minimum lease payments under non-cancellable operating lease and future minimum finance lease payments as of March 31, 2022 are follows: Years Ending December 31, Finance Operating 2022 14 146 2023 - 198 2024 - 186 Total minimum lease payments $ 14 $ 530 Finance Less: amounts representing interest (ranging from 11.43% to 14.68%) $ - Present value of minimum lease payments 4 Less: current installments under finance lease obligations 4 Total long-term portion $ 0 |
Subsequent Events
Subsequent Events | 3 Months Ended |
Mar. 31, 2022 | |
Subsequent Events [Abstract] | |
Subsequent Events | Note 13 - Subsequent Events On May 4, 2022, the Company issued 667 shares of common stock for service for restricted stock units that vested in April, 2022. We have evaluated subsequent events from the balance sheet date through May 13, 2022, 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. |
Accounting Policies, by Policy
Accounting Policies, by Policy (Policies) | 3 Months Ended |
Mar. 31, 2022 | |
Organization and Description of Business [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 our financial statements include the valuation of preferred stock, if issued, 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. |
Cash and Cash Equivalents | Cash and Cash Equivalents We consider money market fund investments to be cash equivalents. We had cash equivalents in the form of money market fund investment of $6,794 and $8,793 at March 31, 2022 and December 31, 2021, respectively, included in cash as reported. |
Accounts Receivable-Trade | Accounts Receivable-Trade Accounts receivable-trade consist primarily of receivables from customers. We provide 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. We did not have any allowance for doubtful trade receivables at March 31, 2022 or at December 31, 2021. |
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. Raw materials are stocked to reduce the risk of impact on manufacturing for potential supply interruptions due to the COVID-19 pandemic or long lead times on certain ingredients. Components of inventory are: |
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/trade show 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 finance 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 finance leases is amortized over the shorter of the lease term or estimated useful life of the asset. We incur repair and maintenance costs on our 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, we compare 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. We have not recorded an impairment of long-lived assets since its inception. |
Revenue Recognition | Revenue Recognition Effective January 1, 2018, we adopted Accounting Standards Codification (“ASC”) 606 — Revenue from Contracts with Customers . We recognize revenue when product is shipped at a fixed selling price on payment terms of 30 to 120 days from invoicing. We recognize other revenue earned from pilot studies, consulting and implementation services upon the performance of specific services under the respective service contract. We derive revenue primarily from commercial sales of products, net of discounts and promotions, as well as consulting and implementation services provided in conjunction with our product deployments. |
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, regulatory compliance costs, as well as manufacturing costs associated with process improvement and other research. Research and development expenses include an allocation of facilities related costs, including depreciation of equipment. |
Stock-Based Compensation | Stock-Based Compensation Stock-based awards, consisting of stock options and restricted stock units expected to be settled in shares of our common stock, are recorded as equity awards. The grant date fair value of these awards is measured using the Black-Scholes option pricing model for stock options and grant date market value for restricted stock units. We expense the grant date fair value of stock options on a straight-line basis over their respective vesting periods. The stock-based compensation expense recorded for the three months ended March 31, 2022 and 2021, is as follows: Three Months Ended 2022 2021 Research and development $ 1 $ 2 Selling, general and administrative 223 153 Total stock-based compensation expense $ 224 $ 155 See Note 11 for additional discussion on stock-based compensation. |
Income Taxes | Income Taxes We account 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. We record net deferred tax assets to the extent we believe 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, we consider 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. We apply a more-likely-than-not recognition threshold for all tax uncertainties. Only those benefits that have a greater than 50% likelihood of being sustained upon examination by the taxing authorities are recognized. Based on our evaluation, we have concluded there are no significant uncertain tax positions requiring recognition in our financial statements. We recognize interest and/or penalties related to uncertain tax positions in income tax expense. There are no uncertain tax positions as of March 31, 2022 or December 31, 2021 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, 2022 and 2021. 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): |
Accounting Standards Issued but Not Yet Adopted | Accounting Standards Issued but Not Yet Adopted 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 condensed consolidated financial statements. |
Summary of Significant Accoun_2
Summary of Significant Accounting Policies (Tables) | 3 Months Ended |
Mar. 31, 2022 | |
Organization and Description of Business [Abstract] | |
Schedule of inventory | March 31, December 31, 2022 2021 Raw materials $ 890 $ 937 Work in progress 4 5 Finished goods 79 88 Total inventory 973 1,030 Less: Reserve for obsolete (26 ) (29 ) Total net inventory $ 947 $ 1,001 |
Schedule of stock-based compensation expense | Three Months Ended 2022 2021 Research and development $ 1 $ 2 Selling, general and administrative 223 153 Total stock-based compensation expense $ 224 $ 155 |
Schedule of outstanding potentially dilutive securities calculation of diluted loss per share attributable to common stockholders | March 31, 2022 2021 Common stock purchase warrants 4,531,447 4,553,733 Restricted stock units 667 31,405 Common stock options 1,477,320 506,852 Total 6,009,434 5,091,990 |
Prepaid Expenses (Tables)
Prepaid Expenses (Tables) | 3 Months Ended |
Mar. 31, 2022 | |
Prepaid Expenses [Abstract] | |
Schedule of prepaid expenses | March 31, December 31, 2022 2021 Director, officer and other insurance $ 169 $ 109 Marketing programs and conferences 34 66 Patents 25 41 Engineering, software licenses and other 17 12 Engineering, software licenses and other 14 2 Total prepaid expenses $ 259 $ 230 |
Property and Equipment (Tables)
Property and Equipment (Tables) | 3 Months Ended |
Mar. 31, 2022 | |
Property, Plant and Equipment [Abstract] | |
Schedule of property and equipment net | Useful March 31, December 31, Life 2022 2021 Research and development equipment 5 years $ 1,437 $ 1,425 Office and computer equipment 3 years 786 762 Autos 5 years 54 54 Furniture and fixtures 7 years 41 41 Leasehold improvements * 117 112 Construction in progress 70 45 2,505 2,439 Less accumulated depreciation and amortization (2,171 ) (2,105 ) Total $ 334 $ 334 * Shorter of lease term or estimated useful life |
Accrued Expenses (Tables)
Accrued Expenses (Tables) | 3 Months Ended |
Mar. 31, 2022 | |
Accrued Expenses [Abstract] | |
Schedule of accrued expenses | March 31, December 31, 2022 2021 Compensation and related benefits $ 584 $ 524 Legal services - 17 Product warranty 23 18 Personal property and franchise tax 13 5 Other 14 14 Total accrued expenses $ 634 $ 578 |
Borrowings (Tables)
Borrowings (Tables) | 3 Months Ended |
Mar. 31, 2022 | |
Debt Disclosure [Abstract] | |
Schedule of finance lease obligations | March 31, December 31, 2022 2021 Short-term debt: Finance lease obligations $ 14 $ 27 Other promissory notes 2 5 Total $ 16 $ 32 |
Common Stock Warrants and Com_2
Common Stock Warrants and Common Stock Warrant Liability (Tables) | 3 Months Ended |
Mar. 31, 2022 | |
Common Stock Warrants and Common Stock Warrant Liability [Abstract] | |
Schedule of common stock warrant activity | Balance Balance Balance Issue Date Warrant Type Term Exercise Price December 31, Issued Exercised Expired December 31, Issued Exercised Expired March 31, November 21, 2017 Common Stock Offering Warrants November 21, 2022 $ 1.3659 (1) 143,501 - (21,787 ) - 121,714 - - - 121,714 June 20, 2018 Warrant Reissue December 20, 2023 $ 36.40 56,696 - - - 56,696 - - - 56,696 August 13, 2018 Rights Offering Warrants July 25, 2023 $ 23.00 202,943 - (499 ) - 202,444 - - - 202,444 August 13, 2018 Dealer Manager Warrants August 13, 2023 $ 34.50 13,393 - - - 13,393 - - - 13,393 July 16, 2019 Dealer Manager Warrants July 11, 2024 $ 33.75 8,334 - - - 8,334 - - - 8,334 January 28, 2020 Registered Direct Offering July 28, 2025 $ 9.00 177,500 - - - 177,500 - - - 177,500 January 28, 2020 Dealer Manager Warrants July 28, 2025 $ 10.00 13,315 - - - 13,315 - - - 13,315 March 6, 2020 Dealer Manager Warrants March 4, 2025 $ 3.76 13,228 - - - 13,228 - - - 13,228 April 21, 2020 Dealer Manager Warrants April 21, 2025 $ 3.97 118,073 - - - 118,073 - - - 118,073 April 24, 2020 Registered Direct Offering April 24, 2025 $ 3.05 50,000 - - - 50,000 - - - 50,000 October 26, 2020 Private Warrant Inducement April 27, 2026 $ 1.73 1,700,680 (700,680 ) 1,000,000 - - - 1,000,000 October 26, 2020 Dealer Manager Warrants April 27, 2026 $ 2.16 85,034 - 85,034 - - - 85,034 February 2, 2021 Private Placement Agreement August 2, 2026 $ 2.216 - 2,194,427 - - 2,194,427 - - - 2,194,427 February 2, 2021 Dealer Manager Warrants August 2, 2026 $ 2.848 - 329,164 - - 329,164 - - - 329,164 March 23, 2021 Dealer Manager Warrants March 23, 2026 $ 2.50 - 148,125 - - 148,125 - - - 148,125 2,582,697 4,531,447 4,531,447 |
Stock-based Compensation (Table
Stock-based Compensation (Tables) | 3 Months Ended |
Mar. 31, 2022 | |
Share-Based Payment Arrangement [Abstract] | |
Schedule of fair value of options granted | Expected volatility 77.0 % Expected dividend yield — Expected term (in years) 3.5 Risk-free interest rate 1.7 % |
Schedule of stock option activity | Number of Weighted Weighted Aggregate Outstanding at December 31, 2021 1,087,820 $ 4.08 3.9 $ — Granted 390,000 $ 0.82 4.9 $ — Exercised — $ — — $ — Forfeited (500 ) $ — — $ — Expired — $ — — $ — Outstanding at March 31, 2022 1,477,320 $ 3.23 3.2 $ — Exercisable at March 31, 2022 795,019 $ 4.79 2.0 $ — (1) The aggregate intrinsic value in the table was calculated based on the difference between the estimated fair market value of our stock and the exercise price of the underlying options. The estimated stock values used in the calculation were $0.98 and $0.73 per share for the year ended December 31, 2021 and the three months ended March 31, 2022, respectively. |
Schedule of summarizes restricted stock unit activity | Number of Weighted Average Outstanding as of December 31, 2021 667 $ 1.80 Granted 5,000 $ 0.76 Vested (5,000 ) $ 0.76 Forfeited — $ — Outstanding as of March 31, 2022 667 $ 1.80 |
Schedule of stock-based compensation expense | Three Months Ended 2022 2021 Research and development $ 1 $ 2 Selling, general and administrative 223 153 Total stock-based compensation expense $ 224 $ 155 |
Commitments and Contingencies (
Commitments and Contingencies (Tables) | 3 Months Ended |
Mar. 31, 2022 | |
Commitments and Contingencies Disclosure [Abstract] | |
Schedule of future minimum lease payments under non-cancellable operating lease and future minimum capital lease payments | Years Ending December 31, Finance Operating 2022 14 146 2023 - 198 2024 - 186 Total minimum lease payments $ 14 $ 530 Finance Less: amounts representing interest (ranging from 11.43% to 14.68%) $ - Present value of minimum lease payments 4 Less: current installments under finance lease obligations 4 Total long-term portion $ 0 |
Organization and Description _2
Organization and Description of Business (Details) $ in Millions | 3 Months Ended |
Mar. 31, 2022USD ($) | |
Organization and Description of Business [Abstract] | |
Net proceeds received | $ 89.6 |
Proceeds from licensing fees | 1.7 |
Proceeds from product sales | 1.7 |
Accumulated deficit | 114.8 |
Cash and cash equivalents | $ 7.2 |
Summary of Significant Accoun_3
Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 |
Organization and Description of Business [Abstract] | ||
Money market fund | $ 6,794 | $ 8,793 |
Summary of Significant Accoun_4
Summary of Significant Accounting Policies (Details) - Schedule of inventory - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 |
Schedule of inventory [Abstract] | ||
Raw materials | $ 890 | $ 937 |
Work in progress | 4 | 5 |
Finished goods | 79 | 88 |
Total inventory | 973 | 1,030 |
Less: | ||
Reserve for obsolete | (26) | (29) |
Total net inventory | $ 947 | $ 1,001 |
Summary of Significant Accoun_5
Summary of Significant Accounting Policies (Details) - Schedule of stock-based compensation expense - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2022 | Mar. 31, 2021 | |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
Total stock-based compensation expense | $ 224 | $ 155 |
Research and development [Member] | ||
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
Total stock-based compensation expense | 1 | 2 |
Selling, general and administrative [Member] | ||
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] | ||
Total stock-based compensation expense | $ 223 | $ 153 |
Summary of Significant Accoun_6
Summary of Significant Accounting Policies (Details) - Schedule of outstanding potentially dilutive securities calculation of diluted loss per share attributable to common stockholders - shares | 3 Months Ended | |
Mar. 31, 2022 | Mar. 31, 2021 | |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Total | 6,009,434 | 5,091,990 |
Common Stock Purchase Warrants [Member] | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Total | 4,531,447 | 4,553,733 |
Restricted Stock Units [Member] | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Total | 667 | 31,405 |
Common Stock Options [Member] | ||
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] | ||
Total | 1,477,320 | 506,852 |
Prepaid Expenses (Details) - Sc
Prepaid Expenses (Details) - Schedule of prepaid expenses - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 |
Schedule of prepaid expenses [Abstract] | ||
Director, officer and other insurance | $ 169 | $ 109 |
Marketing programs and conferences | 34 | 66 |
Patents | 25 | 41 |
Engineering, software licenses and other | 17 | 12 |
Engineering, software licenses and other | 14 | 2 |
Total prepaid expenses | $ 259 | $ 230 |
Property and Equipment (Details
Property and Equipment (Details) - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2022 | Mar. 31, 2021 | |
Property, Plant and Equipment [Abstract] | ||
Depreciation and amortization expense | $ 66 | $ 73 |
Property and Equipment (Detai_2
Property and Equipment (Details) - Schedule of property and equipment net - USD ($) $ in Thousands | 3 Months Ended | ||
Mar. 31, 2022 | Dec. 31, 2021 | ||
Property, Plant and Equipment [Line Items] | |||
Property, plant and equipment, gross | $ 2,505 | $ 2,439 | |
Less accumulated depreciation and amortization | (2,171) | (2,105) | |
Total | $ 334 | 334 | |
Research and development equipment [Member] | |||
Property, Plant and Equipment [Line Items] | |||
Property, plant and equipment, useful life | 5 years | ||
Property, plant and equipment, gross | $ 1,437 | 1,425 | |
Office and computer equipment [Member] | |||
Property, Plant and Equipment [Line Items] | |||
Property, plant and equipment, useful life | 3 years | ||
Property, plant and equipment, gross | $ 786 | 762 | |
Autos [Member] | |||
Property, Plant and Equipment [Line Items] | |||
Property, plant and equipment, useful life | 5 years | ||
Property, plant and equipment, gross | $ 54 | 54 | |
Furniture and fixtures [Member] | |||
Property, Plant and Equipment [Line Items] | |||
Property, plant and equipment, useful life | 7 years | ||
Property, plant and equipment, gross | $ 41 | 41 | |
Leasehold improvements [Member] | |||
Property, Plant and Equipment [Line Items] | |||
Property, plant and equipment, useful life | [1] | ||
Property, plant and equipment, gross | $ 117 | 112 | |
Construction in Progress [Member] | |||
Property, Plant and Equipment [Line Items] | |||
Property, plant and equipment, gross | $ 70 | $ 45 | |
[1] | Shorter of lease term or estimated useful life |
Accrued Expenses (Details) - Sc
Accrued Expenses (Details) - Schedule of accrued expenses - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 |
Schedule of accrued expenses [Abstract] | ||
Compensation and related benefits | $ 584 | $ 524 |
Legal services | 17 | |
Product warranty | 23 | 18 |
Personal property and franchise tax | 13 | 5 |
Other | 14 | 14 |
Total accrued expenses | $ 634 | $ 578 |
Borrowings (Details)
Borrowings (Details) | 3 Months Ended |
Mar. 31, 2022 | |
Finance Lease Obligations [Member] | |
Borrowings (Details) [Line Items] | |
Lease expire date | Apr. 18, 2022 |
Interest rate | 11.40% |
Other Promissory Notes [Member] | |
Borrowings (Details) [Line Items] | |
Lease expire date | Jul. 1, 2022 |
Interest rate | 13.30% |
Borrowings (Details) - Schedule
Borrowings (Details) - Schedule of finance lease obligations - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021 |
Short-term debt: | ||
Finance lease obligations | $ 14 | $ 27 |
Other promissory notes | 2 | 5 |
Total | $ 16 | $ 32 |
Common Stock Warrants and Com_3
Common Stock Warrants and Common Stock Warrant Liability (Details) - USD ($) | Mar. 04, 2020 | Mar. 03, 2020 | Jan. 28, 2020 | Aug. 13, 2018 | Jul. 24, 2018 | Nov. 21, 2017 | Mar. 23, 2021 | Feb. 28, 2021 | Oct. 31, 2020 | Oct. 26, 2020 | Apr. 24, 2020 | Mar. 31, 2020 | Jan. 31, 2020 | Jan. 28, 2020 | Jul. 31, 2019 | Jun. 30, 2018 | Jun. 20, 2018 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021 | Mar. 06, 2020 |
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 7.13 | $ 7.13 | |||||||||||||||||||
Deemed dividend (in Dollars) | $ 285,000 | ||||||||||||||||||||
Unexercised warrants (in Shares) | 143,501 | ||||||||||||||||||||
Share price | $ 0.73 | $ 0.98 | |||||||||||||||||||
Stock compensation expense (in Dollars) | $ 224,000 | $ 155,000 | |||||||||||||||||||
Warrant expire date | Sep. 8, 2025 | Jul. 28, 2025 | |||||||||||||||||||
Limitations on exercise description | A holder (together with its affiliates) may not exercise any portion of the 2020 Warrants to the extent that the holder would own more than 4.99% of the outstanding common stock after exercise (the “Beneficial Ownership Limitation”), except that upon at least 61 days’ prior notice from the holder to us, the holder may increase the Beneficial Ownership Limitation up to 9.99% of the number of shares of our common stock outstanding immediately after giving effect to the exercise, as such percentage ownership is determined in accordance with the terms of the 2020 Warrants. | ||||||||||||||||||||
Common stock warrants issued, description | The warrant holder may not exercise any portion of such holder’s warrants to the extent that the holder, together with its affiliates, would beneficially own more than 4.99% (or, at the election of the holder, 9.99%) of our outstanding shares of common stock immediately after exercise, except that upon at least 61 days’ prior notice from the holder to us, the holder may increase the beneficial ownership limitation to up to 9.99% of the number of shares of common stock outstanding immediately after giving effect to the exercise. | ||||||||||||||||||||
Common stock, par value | $ 0.001 | $ 0.001 | |||||||||||||||||||
Public Offering [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Number of warrant purchased (in Shares) | 293,000 | ||||||||||||||||||||
Warrant activity [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 2.1122 | $ 19 | $ 29.4 | $ 30 | |||||||||||||||||
Adjusted exercise price | 19 | $ 2.1122 | |||||||||||||||||||
Downward exercise price | 7.13 | $ 1.3659 | |||||||||||||||||||
Outstanding Warrants [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 30 | ||||||||||||||||||||
Downward exercise price | $ 29.4 | ||||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 4,531,447 | ||||||||||||||||||||
Weighted-average exercise price | $ 4 | ||||||||||||||||||||
Common Stock Offering Warrants Issued [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | 19 | $ 30 | $ 36.4 | $ 36.4 | |||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 232,875 | ||||||||||||||||||||
Number of warrant purchased (in Shares) | 56,696 | 56,696 | |||||||||||||||||||
Common stock per share | $ 20 | $ 42.2 | |||||||||||||||||||
Warrant term | 5 years | ||||||||||||||||||||
Fair value of common stock warrant (in Dollars) | $ 661,000 | ||||||||||||||||||||
Per share price | $ 20 | ||||||||||||||||||||
Expected volatility rate | 73.80% | 73.80% | 72.60% | ||||||||||||||||||
Expected term | 5 years | 2 years 9 months 25 days | 5 years | ||||||||||||||||||
Expected dividend rate | 0.00% | 0.00% | 0.00% | ||||||||||||||||||
Risk free interest rate | 1.87% | 1.45% | 2.80% | ||||||||||||||||||
Share price | 7.9 | $ 7.9 | |||||||||||||||||||
Stock compensation expense (in Dollars) | $ 1,700,000 | ||||||||||||||||||||
Fair value adjustment of warrants (in Dollars) | $ 1,700,000 | ||||||||||||||||||||
Common Stock Warrant Issued to Underwriter of Common Stock Offering [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 7.13 | $ 7.13 | |||||||||||||||||||
Common stock per share | $ 2.156 | ||||||||||||||||||||
Expected volatility rate | 74.50% | 96.50% | |||||||||||||||||||
Expected term | 2 years 8 months 15 days | 2 years 29 days | |||||||||||||||||||
Expected dividend rate | 0.00% | 0.00% | |||||||||||||||||||
Risk free interest rate | 0.68% | 0.18% | |||||||||||||||||||
Deemed dividend (in Dollars) | $ 129,000 | $ 22,000 | |||||||||||||||||||
Share price | $ 2.88 | $ 1.47 | |||||||||||||||||||
Warrants exercise price | $ 2.1122 | $ 1.3659 | |||||||||||||||||||
Unexercised warrants (in Shares) | 143,501 | 143,501 | |||||||||||||||||||
November 2017 warrants [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 56,696 | ||||||||||||||||||||
Number of warrant purchased (in Shares) | 56,696 | ||||||||||||||||||||
Common stock per share | $ 30 | ||||||||||||||||||||
Gross proceeds (in Dollars) | $ 1,700,000 | ||||||||||||||||||||
New Warrants November 8, 2017 [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Number of warrant purchased (in Shares) | 17,088 | ||||||||||||||||||||
Gross proceeds (in Dollars) | $ 513,000 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in 2020 Registered Direct Offerings and Private Placement [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 23 | $ 34.5 | |||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 267,853 | 13,393 | |||||||||||||||||||
Common stock per share | $ 18.8 | $ 18.8 | |||||||||||||||||||
Fair value of common stock warrant (in Dollars) | $ 3,600,000 | $ 169 | |||||||||||||||||||
Expected volatility rate | 159.00% | 159.00% | |||||||||||||||||||
Expected term | 5 years | 5 years | |||||||||||||||||||
Expected dividend rate | 0.00% | 0.00% | |||||||||||||||||||
Risk free interest rate | 2.77% | 2.77% | |||||||||||||||||||
Share price | $ 23 | ||||||||||||||||||||
Purchase of warrants shares (in Shares) | 267,853 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in 2020 Registered Direct Offerings and Private Placement [Member] | H.C. Wainwright & Co., LLC [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 33.75 | ||||||||||||||||||||
Number of warrant purchased (in Shares) | 8,334 | ||||||||||||||||||||
Common stock per share | $ 33.75 | ||||||||||||||||||||
Warrant term | 5 years | ||||||||||||||||||||
Fair value of common stock warrant (in Dollars) | $ 127,000 | ||||||||||||||||||||
Expected volatility rate | 133.30% | ||||||||||||||||||||
Expected term | 5 years | ||||||||||||||||||||
Expected dividend rate | 0.00% | ||||||||||||||||||||
Risk free interest rate | 2.07% | ||||||||||||||||||||
Share price | $ 26.8 | ||||||||||||||||||||
Common Stock Warrants Issued in January and March 2020 Private Placements [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 2.88 | $ 9 | |||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 353,872 | 353,872 | |||||||||||||||||||
Number of warrant purchased (in Shares) | 176,372 | 177,500 | |||||||||||||||||||
Expected volatility rate | 74.80% | 73.80% | |||||||||||||||||||
Expected term | 5 years | 5 years | |||||||||||||||||||
Expected dividend rate | 0.00% | 0.00% | |||||||||||||||||||
Risk free interest rate | 0.39% | 1.53% | |||||||||||||||||||
Common stock warrants, exercisable | $ 2.88 | $ 9 | |||||||||||||||||||
Common stock warrants, exercisable amount (in Dollars) | $ 242 | $ 813 | |||||||||||||||||||
Common stock price | $ 2.35 | $ 7.9 | |||||||||||||||||||
Ownership percentage | 50.00% | ||||||||||||||||||||
Common Stock Warrants Issued in April 2020 Public Offering [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 3.05 | ||||||||||||||||||||
Number of warrant purchased (in Shares) | 1,574,308 | ||||||||||||||||||||
Expected volatility rate | 87.90% | ||||||||||||||||||||
Expected term | 5 years | ||||||||||||||||||||
Expected dividend rate | 0.00% | ||||||||||||||||||||
Risk free interest rate | 0.18% | ||||||||||||||||||||
Warrant expire date | Apr. 24, 2025 | ||||||||||||||||||||
Common stock warrants, exercisable | $ 3,050 | ||||||||||||||||||||
Common stock warrants, exercisable amount (in Dollars) | $ 2,402 | ||||||||||||||||||||
Common stock price | $ 2.4 | ||||||||||||||||||||
Common Stock Warrants Issued in April 2020 Public Offering [Member] | Common Class A [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 145,586 | ||||||||||||||||||||
Common Stock Warrants Issued in April 2020 Public Offering [Member] | Common Class B [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 1,428,722 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in 2020 Registered Direct Offerings and Private Placement [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 3.97 | $ 2.35 | $ 7.9 | 2.4 | |||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 13,313 | 13,228 | |||||||||||||||||||
Common stock per share | $ 3,756.3000 | $ 10 | $ 3.97 | ||||||||||||||||||
Expected volatility rate | 74.80% | 73.80% | 87.90% | ||||||||||||||||||
Expected term | 5 years | 5 years | 5 years | ||||||||||||||||||
Expected dividend rate | 0.00% | 0.00% | 0.00% | ||||||||||||||||||
Risk free interest rate | 0.39% | 1.53% | 0.18% | ||||||||||||||||||
Common stock warrants, exercisable | $ 10 | ||||||||||||||||||||
Common stock warrants, exercisable amount (in Dollars) | $ 17 | $ 58 | $ 167 | ||||||||||||||||||
Common stock per share | $ 3.7563 | ||||||||||||||||||||
Exercise outstanding warrants (in Shares) | 1,700,680 | ||||||||||||||||||||
Aggregate Shares of Common Stock (in Shares) | 1,700,680 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in 2020 Registered Direct Offerings and Private Placement [Member] | Common Class A [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 145,586 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in 2020 Registered Direct Offerings and Private Placement [Member] | Common Class B [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 1,428,722 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in 2020 Registered Direct Offerings and Private Placement [Member] | H.C. Wainwright & Co., LLC [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Number of warrant purchased (in Shares) | 118,073 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in October 2020 Inducement Offering [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 1.725 | $ 1.725 | |||||||||||||||||||
Adjusted exercise price | 3.05 | ||||||||||||||||||||
Downward exercise price | $ 2.88 | ||||||||||||||||||||
Warrant term | 5 years | ||||||||||||||||||||
Expected volatility rate | 96.50% | ||||||||||||||||||||
Expected term | 5 years | ||||||||||||||||||||
Expected dividend rate | 0.00% | ||||||||||||||||||||
Risk free interest rate | 0.18% | ||||||||||||||||||||
Share price | $ 1.47 | ||||||||||||||||||||
Purchase of warrants shares (in Shares) | 1,700,680 | ||||||||||||||||||||
Common stock warrants, exercisable | $ 1.725 | ||||||||||||||||||||
Common stock warrants, exercisable amount (in Dollars) | $ 1,806,000 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in October 2020 Inducement Offering [Member] | H.C. Wainwright & Co., LLC [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Purchase of warrants shares (in Shares) | 85,034 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in October 2020 Inducement Offering [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Common stock per share | $ 1.47 | ||||||||||||||||||||
Fair value of common stock warrant (in Dollars) | $ 86,000 | ||||||||||||||||||||
Expected volatility rate | 96.50% | ||||||||||||||||||||
Expected term | 5 years 6 months | ||||||||||||||||||||
Expected dividend rate | 0.00% | ||||||||||||||||||||
Risk free interest rate | 0.18% | ||||||||||||||||||||
Fair value adjustment of warrants (in Dollars) | $ 237,000 | ||||||||||||||||||||
Purchase of warrants shares (in Shares) | 1,700,680 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in October 2020 Inducement Offering [Member] | H.C. Wainwright & Co., LLC [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 2.156 | ||||||||||||||||||||
Common Stock Warrants Issued in February 2021 Private Placement Agreement [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 2.216 | $ 2.216 | |||||||||||||||||||
Common stock per share | $ 1.93 | ||||||||||||||||||||
Expected volatility rate | 95.60% | ||||||||||||||||||||
Expected term | 5 years | ||||||||||||||||||||
Expected dividend rate | 0.00% | ||||||||||||||||||||
Risk free interest rate | 0.18% | ||||||||||||||||||||
Fair value adjustment of warrants (in Dollars) | $ 3,052,000 | ||||||||||||||||||||
Purchase of warrants shares (in Shares) | 2,194,427 | ||||||||||||||||||||
Common Stock Warrants Issued in February 2021 Private Placement Agreement [Member] | H.C. Wainwright & Co., LLC [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 2.8481 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in February 2021 Private Placement Agreement [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 2.8481 | ||||||||||||||||||||
Common stock per share | $ 1.93 | ||||||||||||||||||||
Expected volatility rate | 95.60% | ||||||||||||||||||||
Expected term | 5 years | ||||||||||||||||||||
Expected dividend rate | 0.00% | ||||||||||||||||||||
Risk free interest rate | 0.18% | ||||||||||||||||||||
Fair value adjustment of warrants (in Dollars) | $ 435,000 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in February 2021 Private Placement Agreement [Member] | H.C. Wainwright & Co., LLC [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Purchase of warrants shares (in Shares) | 329,164 | ||||||||||||||||||||
Common Stock Warrants Issued to Placement Agent in March 2021 Registered Direct Offering [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 2.5 | ||||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 1,975,000 | ||||||||||||||||||||
Warrant term | 5 years | ||||||||||||||||||||
Per share price | $ 2.5 | ||||||||||||||||||||
Expected volatility rate | 100.80% | ||||||||||||||||||||
Expected term | 5 years | ||||||||||||||||||||
Expected dividend rate | 0.00% | ||||||||||||||||||||
Risk free interest rate | 0.31% | ||||||||||||||||||||
Share price | $ 2 | $ 1.76 | |||||||||||||||||||
Stock compensation expense (in Dollars) | $ 181,000 | ||||||||||||||||||||
Purchase of warrants shares (in Shares) | 148,125 | ||||||||||||||||||||
Common stock, par value | $ 0.001 | ||||||||||||||||||||
Deducting fees payable (in Dollars) | $ 3,950,000 | ||||||||||||||||||||
Common stock sold (in Shares) | 1,975,000 | ||||||||||||||||||||
Deemed Dividend Adjustment-Warrant Modified Terms Revaluation [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 1.725 | ||||||||||||||||||||
Common stock offering warrants issued, value (in Shares) | 56,625 | ||||||||||||||||||||
Common stock per share | $ 1.47 | ||||||||||||||||||||
Expected volatility rate | 96.50% | ||||||||||||||||||||
Expected term | 2 months 4 days | ||||||||||||||||||||
Expected dividend rate | 0.00% | ||||||||||||||||||||
Exercise outstanding warrants (in Shares) | 1,700,680 | ||||||||||||||||||||
Aggregate issued common shares (in Shares) | 51,414 | ||||||||||||||||||||
Outstanding litigation reserve (in Dollars) | $ 238 | ||||||||||||||||||||
Deemed Dividend Adjustment-Warrant Modified Terms Revaluation [Member] | Minimum [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 2.88 | ||||||||||||||||||||
Expected term | 4 years 6 months | ||||||||||||||||||||
Deemed Dividend Adjustment-Warrant Modified Terms Revaluation [Member] | Maximum [Member] | |||||||||||||||||||||
Common Stock Warrants and Common Stock Warrant Liability (Details) [Line Items] | |||||||||||||||||||||
Exercise price | $ 3,050 |
Common Stock Warrants and Com_4
Common Stock Warrants and Common Stock Warrant Liability (Details) - Schedule of common stock warrant activity - $ / shares | 3 Months Ended | 12 Months Ended | ||
Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | ||
Class of Warrant or Right [Line Items] | ||||
Outstanding at beginning | 4,531,447 | 2,582,697 | ||
Outstanding at ending | 4,531,447 | 4,531,447 | ||
Common Stock Offering Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Common Stock Offering Warrants | |||
Term Date | November 21, 2022 | |||
Exercise Price (in Dollars per share) | [1] | $ 1.3659 | ||
Outstanding at beginning | 121,714 | 143,501 | ||
Issued | ||||
Exercised | (21,787) | |||
Expired | ||||
Outstanding at ending | 121,714 | 121,714 | ||
Warrant Reissue [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Warrant Reissue | |||
Term Date | December 20, 2023 | |||
Exercise Price (in Dollars per share) | $ 36.4 | |||
Outstanding at beginning | 56,696 | 56,696 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 56,696 | 56,696 | ||
Rights Offering Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Rights Offering Warrants | |||
Term Date | July 25, 2023 | |||
Exercise Price (in Dollars per share) | $ 23 | |||
Outstanding at beginning | 202,444 | 202,943 | ||
Issued | ||||
Exercised | (499) | |||
Expired | ||||
Outstanding at ending | 202,444 | 202,444 | ||
Dealer Manager Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Dealer Manager Warrants | |||
Term Date | August 13, 2023 | |||
Exercise Price (in Dollars per share) | $ 34.5 | |||
Outstanding at beginning | 13,393 | 13,393 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 13,393 | 13,393 | ||
Dealer Manager Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Dealer Manager Warrants | |||
Term Date | July 11, 2024 | |||
Exercise Price (in Dollars per share) | $ 33.75 | |||
Outstanding at beginning | 8,334 | 8,334 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 8,334 | 8,334 | ||
Registered Direct Offering [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Registered Direct Offering | |||
Term Date | July 28, 2025 | |||
Exercise Price (in Dollars per share) | $ 9 | |||
Outstanding at beginning | 177,500 | 177,500 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 177,500 | 177,500 | ||
Dealer Manager Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Dealer Manager Warrants | |||
Term Date | July 28, 2025 | |||
Exercise Price (in Dollars per share) | $ 10 | |||
Outstanding at beginning | 13,315 | 13,315 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 13,315 | 13,315 | ||
Dealer Manager Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Dealer Manager Warrants | |||
Term Date | March 4, 2025 | |||
Exercise Price (in Dollars per share) | $ 3.76 | |||
Outstanding at beginning | 13,228 | 13,228 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 13,228 | 13,228 | ||
Dealer Manager Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Dealer Manager Warrants | |||
Term Date | April 21, 2025 | |||
Exercise Price (in Dollars per share) | $ 3.97 | |||
Outstanding at beginning | 118,073 | 118,073 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 118,073 | 118,073 | ||
Registered Direct Offering [Member[ | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Registered Direct Offering | |||
Term Date | April 24, 2025 | |||
Exercise Price (in Dollars per share) | $ 3.05 | |||
Outstanding at beginning | 50,000 | 50,000 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 50,000 | 50,000 | ||
Private Warrant Inducement [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Private Warrant Inducement | |||
Term Date | April 27, 2026 | |||
Exercise Price (in Dollars per share) | $ 1.73 | |||
Outstanding at beginning | 1,000,000 | 1,700,680 | ||
Issued | ||||
Exercised | (700,680) | |||
Expired | ||||
Outstanding at ending | 1,000,000 | 1,000,000 | ||
Dealer Manager Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Dealer Manager Warrants | |||
Term Date | April 27, 2026 | |||
Exercise Price (in Dollars per share) | $ 2.16 | |||
Outstanding at beginning | 85,034 | 85,034 | ||
Issued | ||||
Exercised | ||||
Expired | ||||
Outstanding at ending | 85,034 | 85,034 | ||
Private Placement Agreement [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Private Placement Agreement | |||
Term Date | August 2, 2026 | |||
Exercise Price (in Dollars per share) | $ 2.216 | |||
Outstanding at beginning | 2,194,427 | |||
Issued | 2,194,427 | |||
Exercised | ||||
Expired | ||||
Outstanding at ending | 2,194,427 | 2,194,427 | ||
Dealer Manager Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Dealer Manager Warrants | |||
Term Date | August 2, 2026 | |||
Exercise Price (in Dollars per share) | $ 2.848 | |||
Outstanding at beginning | 329,164 | |||
Issued | 329,164 | |||
Exercised | ||||
Expired | ||||
Outstanding at ending | 329,164 | 329,164 | ||
Dealer Manager Warrants [Member] | ||||
Class of Warrant or Right [Line Items] | ||||
Warrant Type | Dealer Manager Warrants | |||
Term Date | March 23, 2026 | |||
Exercise Price (in Dollars per share) | $ 2.5 | |||
Outstanding at beginning | 148,125 | |||
Issued | 148,125 | |||
Exercised | ||||
Expired | ||||
Outstanding at ending | 148,125 | 148,125 | ||
[1] | The initial exercise price of these warrants was $30.00 per share. Pursuant to antidilution price adjustment protection contained within these warrants, the initial exercise price of these warrants was adjusted downward to $29.40 on July 24, 2018, the record date of the 2018 Rights Offering (defined herein) and downward to $19.00 per share on August 13, 2018. These warrants were further adjusted downward from $19.00 to $7.13 and to $2.1122 on January 28, 2020 and March 4, 2020, respectively, in connection with separate Registered Direct Offerings. These warrants were further adjusted downward from $2.1122 to $1.3659 on October 26, 2020 in connection with a Registered Direct Offering. These warrants are subject to further adjustment pursuant to antidilution price adjustment protection. |
Stockholders_ Deficit (Details)
Stockholders’ Deficit (Details) - $ / shares | 1 Months Ended | 3 Months Ended | |||
Feb. 25, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2015 | Nov. 10, 2015 | |
Stockholders’ Deficit (Details) [Line Items] | |||||
Common stock shares authorized | 100,000,000 | ||||
Common stock par value (in Dollars per share) | $ 0.001 | ||||
Preferred stock, authorized | 15,000,000 | ||||
Common stock, authorized | 100,000,000 | 100,000,000 | |||
Common stock, par value (in Dollars per share) | $ 0.001 | $ 0.001 | |||
Common stock, shares issued | 12,212,283 | 12,207,283 | |||
Common stock share outstanding | 12,212,283 | 12,207,283 | |||
Share issued restricted stock grant | 5,000 | 390,000 | |||
Common Stock [Member] | |||||
Stockholders’ Deficit (Details) [Line Items] | |||||
Common stock, authorized | 100,000,000 | ||||
Common stock, par value (in Dollars per share) | $ 0.001 | ||||
Common stock, shares issued | 5,000 | ||||
Preferred Stock [Member] | |||||
Stockholders’ Deficit (Details) [Line Items] | |||||
Preferred stock, authorized | 10,000,000 | ||||
Preferred stock, par value (in Dollars per share) | $ 0.001 | ||||
Series A Convertible Preferred Stock [Member] | |||||
Stockholders’ Deficit (Details) [Line Items] | |||||
Preferred stock, authorized | 2,000,000 | ||||
Preferred stock, par value (in Dollars per share) | $ 0.001 | ||||
Series B Convertible Preferred Stock [Member] | |||||
Stockholders’ Deficit (Details) [Line Items] | |||||
Preferred stock, authorized | 7,515,000 | ||||
Series B Preferred Stock [Member] | |||||
Stockholders’ Deficit (Details) [Line Items] | |||||
Preferred stock, par value (in Dollars per share) | $ 0.001 |
Stock-based Compensation (Detai
Stock-based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | |||
Mar. 31, 2022 | Dec. 31, 2021 | Jun. 24, 2021 | Jul. 08, 2020 | |
Stock-based Compensation (Details) [Line Items] | ||||
Service period, description | Options granted under the 2018 Plan generally vest immediately, or ratably over a two- to 36-month period coinciding with their respective service periods. | |||
Stock options term | 5 years | |||
Weighted average grant date fair value of options granted (in Dollars per share) | $ 0.444 | |||
Share price (in Dollars per share) | $ 0.73 | $ 0.98 | ||
Weighted average grant date | 34 months | |||
Equity Incentive Plan 2018 [Member] | ||||
Stock-based Compensation (Details) [Line Items] | ||||
Common stock available for issuance | 2,453,600 | 3,000,000 | 800,000 | |
Equity Incentive Plan 2015 [Member] | ||||
Stock-based Compensation (Details) [Line Items] | ||||
Common stock available for issuance | 122,279 | |||
Minimum [Member] | Equity Incentive Plan 2018 [Member] | ||||
Stock-based Compensation (Details) [Line Items] | ||||
Common stock available for issuance | 50,000 | |||
Maximum [Member] | Equity Incentive Plan 2018 [Member] | ||||
Stock-based Compensation (Details) [Line Items] | ||||
Common stock available for issuance | 850,000 | |||
Restricted Stock Units [Member] | ||||
Stock-based Compensation (Details) [Line Items] | ||||
Compensation cost not yet recognized (in Dollars) | $ 533 |
Stock-based Compensation (Det_2
Stock-based Compensation (Details) - Schedule of fair value of options granted - Employee [Member] | 3 Months Ended |
Mar. 31, 2022 | |
Stock-based Compensation (Details) - Schedule of fair value of options granted [Line Items] | |
Expected volatility | 77.00% |
Expected dividend yield | |
Expected term (in years) | 3 years 6 months |
Risk-free interest rate | 1.70% |
Stock-based Compensation (Det_3
Stock-based Compensation (Details) - Schedule of stock option activity - USD ($) | 1 Months Ended | 3 Months Ended | |
Feb. 25, 2022 | Mar. 31, 2022 | ||
Schedule of stock option activity [Abstract] | |||
Number of Options, Outstanding at December 31, 2021 | 1,087,820 | ||
Weighted Average Exercise Price Per Share, Outstanding at December 31, 2021 | $ 4.08 | ||
Weighted Average Remaining Contractual Term (years), Outstanding at December 31, 2021 | 3 years 10 months 24 days | ||
Aggregate Intrinsic Value, Outstanding at December 31, 2021 | [1] | ||
Number of Options, Granted | 5,000 | 390,000 | |
Weighted Average Exercise Price Per Share, Granted | $ 0.82 | ||
Weighted Average Remaining Contractual Term (years), Granted | 4 years 10 months 24 days | ||
Aggregate Intrinsic Value, Granted | [1] | ||
Number of Options, Exercised | |||
Weighted Average Exercise Price Per Share, Exercised | |||
Weighted Average Remaining Contractual Term (years), Exercised | |||
Aggregate Intrinsic Value, Exercised | [1] | ||
Number of Options, Forfeited | (500) | ||
Weighted Average Exercise Price Per Share, Forfeited | |||
Weighted Average Remaining Contractual Term (years), Forfeited | |||
Aggregate Intrinsic Value, Forfeited | [1] | ||
Number of Options, Expired | |||
Weighted Average Exercise Price Per Share, Expired | |||
Weighted Average Remaining Contractual Term (years), Expired | |||
Aggregate Intrinsic Value, Exercised, Expired | [1] | ||
Number of Options, Outstanding at March 31, 2022 | 1,477,320 | ||
Weighted Average Exercise Price Per Share, Outstanding at March 31, 2022 | $ 3.23 | ||
Weighted Average Remaining Contractual Term (years), Outstanding at March 31, 2022 | 3 years 2 months 12 days | ||
Aggregate Intrinsic Value, Outstanding at March 31, 2022 | [1] | ||
Number of Options, Outstanding, Exercisable at March 31, 2022 | 795,019 | ||
Weighted Average Exercise Price Per Share, Exercisable at March 31, 2022 | $ 4.79 | ||
Weighted Average Remaining Contractual Term (years), Exercisable at March 31, 2022 | 2 years | ||
Aggregate Intrinsic Value, Outstanding, Exercisable at March 31, 2022 | [1] | ||
[1] | The aggregate intrinsic value in the table was calculated based on the difference between the estimated fair market value of our stock and the exercise price of the underlying options. The estimated stock values used in the calculation were $0.98 and $0.73 per share for the year ended December 31, 2021 and the three months ended March 31, 2022, respectively. |
Stock-based Compensation (Det_4
Stock-based Compensation (Details) - Schedule of summarizes restricted stock unit activity - Restricted Stock [Member] | 3 Months Ended |
Mar. 31, 2022$ / sharesshares | |
Stock-based Compensation (Details) - Schedule of summarizes restricted stock unit activity [Line Items] | |
Number of Units, Outstanding beginning | shares | 667 |
Weighted Average Grant-Date Fair Value Per Unit, Outstanding beginning | $ / shares | $ 1.8 |
Number of Units, Granted | shares | 5,000 |
Weighted Average Grant-Date Fair Value Per Unit, Granted | $ / shares | $ 0.76 |
Number of Units, Vested | shares | (5,000) |
Weighted Average Grant-Date Fair Value Per Unit, Vested | $ / shares | $ 0.76 |
Number of Units, Forfeited | shares | |
Weighted Average Grant-Date Fair Value Per Unit, Forfeited | $ / shares | |
Number of Units, Outstanding ending | shares | 667 |
Weighted Average Grant-Date Fair Value Per Unit, Outstanding ending | $ / shares | $ 1.8 |
Stock-based Compensation (Det_5
Stock-based Compensation (Details) - Schedule of stock-based compensation expense - USD ($) $ in Thousands | 3 Months Ended | |
Mar. 31, 2022 | Mar. 31, 2021 | |
Stock-based Compensation (Details) - Schedule of stock-based compensation expense [Line Items] | ||
Total stock-based compensation expense | $ 224 | $ 155 |
Research and development [Member] | ||
Stock-based Compensation (Details) - Schedule of stock-based compensation expense [Line Items] | ||
Total stock-based compensation expense | 1 | 2 |
Selling, general and administrative [Member] | ||
Stock-based Compensation (Details) - Schedule of stock-based compensation expense [Line Items] | ||
Total stock-based compensation expense | $ 223 | $ 153 |
Commitments and Contingencies_2
Commitments and Contingencies (Details) - USD ($) $ in Thousands | 1 Months Ended | 3 Months Ended | ||
Aug. 01, 2020 | Dec. 01, 2019 | Mar. 31, 2022 | Mar. 31, 2021 | |
Commitments and Contingencies Disclosure [Abstract] | ||||
Excess damages | $ 500,000 | |||
Lease commitments extended, description | we entered into a lease for our manufacturing and research facility in Phoenix, Arizona where we occupy approximately 5,105 square feet of manufacturing and warehouse space. This lease expires on November 30, 2024. | we entered into a lease for our corporate headquarters in Phoenix, Arizona where we lease and occupy approximately 5,529 square feet of office space. This lease expires in November 2024. | ||
Rent expense | $ 56 | $ 54 |
Commitments and Contingencies_3
Commitments and Contingencies (Details) - Schedule of future minimum lease payments under non-cancellable operating lease and future minimum capital lease payments $ in Thousands | 3 Months Ended |
Mar. 31, 2022USD ($) | |
Schedule of future minimum lease payments under non-cancellable operating lease and future minimum capital lease payments [Abstract] | |
2022 Finance leases | $ 14 |
2022 Operating leases | 146 |
2023 Finance leases | |
2023 Operating leases | 198 |
2024 Finance leases | |
2024 Operating leases | 186 |
Total minimum lease payments of Finance leases | 14 |
Total minimum lease payments of Operating leases | 530 |
Less: amounts representing interest (ranging from 11.43% to 14.68%) | |
Present value of minimum lease payments | 4 |
Less: current installments under finance lease obligations | 4 |
Total long-term portion | $ 0 |
Subsequent Events (Details)
Subsequent Events (Details) | 1 Months Ended |
May 04, 2022shares | |
Subsequent Event [Member] | |
Subsequent Events (Details) [Line Items] | |
Shares of common stock for service | 667 |