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1. Description of Business Stereotaxis designs, manufactures and markets an advanced robotic magnetic navigation system for use in a hospital’s interventional surgical suite, or “interventional lab”, that we believe revolutionizes the treatment of arrhythmias by enabling enhanced safety, efficiency, and efficacy for catheter-based, or interventional, procedures. Our primary products include the Genesis RMN System, the Niobe System, the Odyssey Solution, and related devices. We also offer to our customers the Stereotaxis Imaging Model S x-ray System. The Genesis RMN and Niobe Systems are designed to enable physicians to complete more complex interventional procedures by providing image-guided delivery of catheters through the blood vessels and chambers of the heart to treatment sites. This is achieved using externally applied magnetic fields that govern the motion of the working tip of the catheter, resulting in improved navigation, efficient procedures, and reduced x-ray exposure. In addition to the robotic magnetic navigation systems and their components, Stereotaxis also has developed the Odyssey Solution, which consolidates lab information enabling physicians to focus on the patient for optimal procedure efficiency. The system also features a remote viewing and recording capability called Odyssey Cinema, which is an innovative solution that delivers synchronized content for optimized workflow, advanced care, and improved productivity. This tool includes an archiving capability that allows clinicians to store and replay entire procedures or segments of procedures. This information can be accessed from locations throughout the hospital local area network and over the global Odyssey Network providing physicians with a tool for clinical collaboration, remote consultation, and training. We promote our full suite of products in a typical hospital implementation, subject to regulatory approvals or clearances. This implementation requires a hospital to agree to an upfront capital payment and recurring payments. The upfront capital payment typically includes equipment and installation charges. The recurring payments typically include disposable costs for each procedure, equipment service costs beyond warranty period, and ongoing software updates. In hospitals where our full suite of products has not been implemented, equipment upgrade or expansion can be implemented upon purchasing of the necessary upgrade or expansion. We have received regulatory clearance, licensing and/or CE Mark approvals necessary for us to market the Genesis RMN System in the U.S. and Europe, and we are in the process of obtaining necessary registrations for extending our markets in other countries. The Niobe System, Odyssey Solution, Cardiodrive, and various disposable interventional devices have received regulatory clearance in the U.S., Europe, Canada, China, Japan and various other countries. We have received the regulatory clearance, licensing and/or CE Mark approvals that allow us to market the Vdrive and Vdrive Duo Systems with the V-CAS, V-Loop and V-Sono devices in the U.S., Canada and Europe. Stereotaxis Imaging Model S is CE marked and FDA cleared. We have strategic relationships with technology leaders and innovators in the global interventional market. Through these strategic relationships we provide compatibility between our robotic magnetic navigation system and digital imaging and 3D catheter location sensing technology, as well as disposable interventional devices. The maintenance of these strategic relationships, or the establishment of equivalent alternatives, is critical to our commercialization efforts. There are no guarantees that any existing strategic relationships will continue and efforts are ongoing to ensure the availability of integrated next generation systems and/or equivalent alternatives. We cannot provide assurance as to the timeline of the ongoing availability of such compatible systems or our ability to obtain equivalent alternatives on competitive terms or at all.

2. Summary of Significant Accounting Policies Basis of Presentation The accompanying Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”). Cash and Cash Equivalents The Company considers all short-term investments purchased with original maturities of three months or less to be cash equivalents. The Company places its cash with high-credit-quality financial institutions and invests primarily in money market accounts. No cash was restricted at December 31, 2020 or 2019. Compensating Cash Arrangement In July 2020, the Company entered into a letter of credit to support a commitment of less than $0.3 million. As a condition of the letter of credit, the Company is required to maintain a $0.3 million compensating balance until the expiration of the letter of credit. Accounts Receivable and Allowance for Uncollectible Accounts Accounts receivable primarily include amounts due from hospitals and distributors for acquisition of magnetic systems, associated disposable device sales and service contracts. Credit is granted on a limited basis, with balances due generally within 30 days of billing. The provision for bad debts is based upon management’s assessment of historical and expected net collections considering business and economic conditions and other collection indicators. Financial Instruments Financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable and debt. The carrying value of such amounts reported at the applicable balance sheet dates approximates fair value. The Company measures certain financial assets and liabilities at fair value on a recurring basis. General accounting principles for fair value measurement established a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (“Level 1”) and the lowest priority to unobservable inputs (“Level 3”). The Company’s financial assets consist of cash equivalents invested in money market funds. The Company had cash equivalents invested in money market funds in the amount of $1.4 million at December 31, 2020. The financial assets consisting of cash equivalents invested in money market funds are classified as Level 2 as described above and total interest income recorded for these investments was insignificant for the year ended December 31, 2020. As of December 31, 2020, the Company did not have any financial liabilities valued at fair value on a recurring basis. As of December 31, 2019, the Company did not have any financial assets or liabilities valued at fair value on a recurring basis. Inventory The Company values its inventory at the lower of cost, as determined using the first-in, first-out (FIFO) method, or market. The Company periodically reviews its physical inventory and provides a reserve upon identification of potential excess or obsolete items. Excess manufacturing overhead costs attributable to idle facility expenses or abnormally low production volumes are excluded from inventory and recorded as an expense in the period incurred. Property and Equipment Property and equipment consist primarily of leasehold improvements, computer, office, research and demonstration equipment, and equipment held for lease and are stated at cost. Depreciation is calculated using the straight-line method over the estimated useful lives or life of the base lease term, ranging from three to ten years. Long-Lived Assets If facts and circumstances suggest that a long-lived asset may be impaired, the carrying value is reviewed. If this review indicates that the carrying value of the asset will not be recovered, as determined based on projected undiscounted cash flows related to the asset over its remaining life, the carrying value of the asset is reduced to its estimated fair value, which in most cases is estimated based upon Level 2 or Level 3 inputs. Intangible Assets Intangible assets consist of purchased technology and intellectual property rights valued at cost on the acquisition date and amortized over their estimated useful lives of 10-15 years. If facts and circumstances suggest that an intangible asset may be impaired, the carrying value is reviewed. If this review indicates that the carrying value of the asset will not be recovered, as determined based on projected undiscounted cash flows related to the asset over its remaining life, the carrying value of the asset is reduced to its estimated fair value, which in most cases is estimated based upon Level 2 or Level 3 inputs. Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and loss during the reporting period. Actual results could differ from those estimates. Revenue and Costs of Revenue Revenue Recognition The Company accounts for revenue in accordance with Accounting Standards Codification Topic 606 (“ASC 606”), Revenue from Contracts with Customers. We generate revenue from initial capital sales of systems as well as recurring revenue from the sale of our proprietary disposable devices, from royalties paid to the Company on the sale by Biosense Webster of co-developed catheters, and from revenue including ongoing software updates and service contracts. We account for a contract with a customer when there is a legally enforceable contract between the Company and the customer, the rights of the parties are identified, the contract has commercial substance, and collectability of the contract consideration is probable. We record our revenue based on consideration specified in the contract with each customer, net of any taxes collected from customers that are remitted to government authorities. For contracts containing multiple products and services the Company accounts for individual products and services as separate performance obligations if they are distinct, which is if a product or service is separately identifiable from other items in the bundled package, and if a customer can benefit from it on its own or with other resources that are readily available to the customer. The Company recognizes revenues as the performance obligations are satisfied by transferring control of the product or service to a customer. For arrangements with multiple performance obligations, revenue is allocated to each performance obligation based on its relative standalone selling price. Standalone selling prices are based on observable prices at which the Company separately sells the products or services. If a standalone selling price is not directly observable, then the Company estimates the standalone selling price considering market conditions and entity-specific factors including, but not limited to, features and functionality of the products and services and market conditions. The Company regularly reviews standalone selling prices and updates these estimates if necessary. Our revenue recognition policy affects the following revenue streams in our business as follows: Systems: Contracts related to the sale of systems typically contain separate obligations for the delivery of system(s), installation and an implied obligation to provide software enhancements if and when available for one year following installation. Revenue is recognized when the Company transfers control to the customer, which is generally at the point when acceptance occurs that indicates customer acknowledgment of delivery or installation, depending on the terms of the arrangement. Revenue from the implied obligation to deliver software enhancements if and when available is recognized ratably over the first year following installation of the system as the customer receives the right to software updates throughout the period and is included in Other Recurring Revenue. The Company’s system contracts generally do not provide a right of return. Systems are generally covered by a one-year assurance type warranty; warranty costs were less than $0.1 million for the periods presented. Revenue from system delivery and installation represented 14% and 7% of revenue for the years ended December 31, 2020 and 2019, respectively. Disposables: Revenue from sales of disposable products is recognized when control is transferred to the customers, which generally occurs at the time of shipment, but can also occur at the time of delivery depending on the customer arrangement. Disposable products are covered by a warranty that provides for the return of defective products. Warranty costs were not material for the periods presented. Disposable revenue represented 28% and 33% of revenue for the years ended December 31, 2020 and 2019, respectively. Royalty: The Company is entitled to royalty payments from Biosense Webster, payable quarterly based on net revenues from sales of the co-developed catheters. Royalty revenue from the co-developed catheters represented 8% and 10% of revenue for the years ended December 31, 2020 and 2019, respectively Other Recurring Revenue: Other recurring revenue includes revenue from product maintenance plans, other post warranty maintenance, and the implied obligation to provide software enhancements if and when available for a specified period, typically one year following installation of our systems. Revenue from services and software enhancements is deferred and amortized over the service or update period, which is typically one year. Revenue related to services performed on a time-and-materials basis is recognized when performed. Other recurring revenue represented 46% and 47% of revenue for the years ended December 31, 2020 and 2019, respectively. Sublease Revenue: The adoption of new lease accounting guidance as of January 1, 2019 requires the Company to record sublease income as revenue beginning in 2019. Sublease revenue represented 4% and 3% of revenue for the years ended December 31, 2020 and 2019, respectively. Schedule of Revenue Disaggregated by Type <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt"> </td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Systems</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231__srt--ProductOrServiceAxis__custom--SystemsMember_pp0p0" style="width: 16%; text-align: right" title="Total revenue">3,626,284</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231__srt--ProductOrServiceAxis__custom--SystemsMember_pp0p0" style="width: 16%; text-align: right" title="Total revenue">2,066,253</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Disposables, service and accessories</td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231__srt--ProductOrServiceAxis__custom--DisposablesServiceAndAccessoriesMember_pp0p0" style="text-align: right" title="Total revenue">22,017,631</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231__srt--ProductOrServiceAxis__custom--DisposablesServiceAndAccessoriesMember_pp0p0" style="text-align: right" title="Total revenue">25,850,174</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 1.5pt">Sublease</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--SubleaseIncome_pp0p0_c20200101__20201231_zQYtuMpsTerh" style="border-bottom: Black 1.5pt solid; text-align: right" title="Sublease">986,120</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_983_eus-gaap--SubleaseIncome_pp0p0_c20190101__20191231_zoQftAfin9mk" style="border-bottom: Black 1.5pt solid; text-align: right" title="Sublease">986,123</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Total revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231_pp0p0" style="text-align: right" title="Total revenue">26,630,035</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231_pp0p0" style="text-align: right" title="Total revenue">28,902,550</td><td style="text-align: left"> </td></tr> </table> Transaction price allocated to remaining performance obligations relates to amounts allocated to products and services for which the revenue has not yet been recognized. A significant portion of this amount relates to the Company’s systems contracts and obligations that will be recognized as revenue in future periods. These obligations are generally satisfied within two years after contract inception but may occasionally extend longer. Transaction price representing revenue to be earned on remaining performance obligations on system contracts was approximately $6.9 million as of December 31, 2020. Performance obligations arising from contracts for disposables, royalty and service are generally expected to be satisfied within one year after entering into the contract. <p id="xdx_891_eus-gaap--ContractWithCustomerAssetAndLiabilityTableTextBlock_zztlu5NLeY57" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 24.5pt; text-align: justify; text-indent: 0.3in">The following information summarizes the Company’s contract assets and liabilities: Summary of Contract Assets and Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Contract Assets - unbilled receivables</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerAssetNet_iI_pp0p0_c20201231_z1g6AdVZnaol" style="width: 16%; text-align: right" title="Contract Assets - unbilled receivables">284,415</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--ContractWithCustomerAssetNet_iI_pp0p0_c20191231_z4l14lHGslZ3" style="width: 16%; text-align: right">168,445</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Product shipped, revenue deferred</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--ContractWithCustomerLiability_c20201231__srt--ProductOrServiceAxis__custom--ProductShippedRevenueDeferredMember_pp0p0" style="text-align: right" title="Total deferred revenue">645,200</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerLiability_c20191231__srt--ProductOrServiceAxis__custom--ProductShippedRevenueDeferredMember_pp0p0" style="text-align: right" title="Total deferred revenue">674,324</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Deferred service and license fees</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--ContractWithCustomerLiability_c20201231__srt--ProductOrServiceAxis__custom--DeferredServiceAndLicenseFeesMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total deferred revenue">5,186,485</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--ContractWithCustomerLiability_c20191231__srt--ProductOrServiceAxis__custom--DeferredServiceAndLicenseFeesMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total deferred revenue">4,972,389</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total deferred revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ContractWithCustomerLiability_c20201231_pp0p0" style="text-align: right" title="Total deferred revenue">5,831,685</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ContractWithCustomerLiability_c20191231_pp0p0" style="text-align: right" title="Total deferred revenue">5,646,713</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Less: Long-term deferred revenue</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--ContractWithCustomerLiabilityNoncurrent_iNI_pp0p0_di_c20201231_z9SCVtPJCuR5" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Long-term deferred revenue">(548,915</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98E_eus-gaap--ContractWithCustomerLiabilityNoncurrent_iNI_pp0p0_di_c20191231_zKpEC8srpExl" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Long-term deferred revenue">(554,258</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Total current deferred revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerLiabilityCurrent_c20201231_pp0p0" style="text-align: right" title="Total current deferred revenue">5,282,770</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_984_eus-gaap--ContractWithCustomerLiabilityCurrent_c20191231_pp0p0" style="text-align: right" title="Total current deferred revenue">5,092,455</td><td style="text-align: left"> </td></tr> </table> The Company invoices its customers based on the billing schedules in its sales arrangements. Contract assets primarily represent the difference between the revenue that was earned but not billed on service contracts and revenue from system contracts that was recognized based on the relative selling price of the related performance obligations and the contractual billing terms in the arrangements. Deferred revenue is primarily related to service contracts, for which the service fees are billed up-front, generally quarterly or annually, and for amounts billed in advance for system contracts for which some performance obligations remain outstanding. For service contracts, the associated deferred revenue is generally recognized ratably over the service period. For system contracts, the associated deferred revenue is recognized when the remaining performance obligations are satisfied. The Company did not have any impairment losses on its contract assets for the periods presented. Revenue recognized for the years ended December 31, 2020 and 2019, that was included in the deferred revenue balance at the beginning of each reporting period was $5.0 million and $5.6 million, respectively. The Company has determined that sales incentive programs for the Company’s sales team meet the requirements to be capitalized as the Company expects to generate future economic benefits from the related revenue generating contracts after the initial capital sales transaction. The costs capitalized as contract acquisition costs included in prepaid expenses and other assets, in the Company’s balance sheet was $0.3 million as of December 31, 2020 and December 31, 2019. The Company did not incur any impairment losses during any of the periods presented. Costs of systems revenue include direct product costs, installation labor and other costs, estimated warranty costs, and initial training and product maintenance costs. These costs are recorded at the time of sale. Costs of disposable revenue include direct product costs and estimated warranty costs and are recorded at the time of sale. Cost of revenue from services and license fees are recorded when incurred. Research and Development Costs Internal research and development costs are expensed in the period incurred. Amounts receivable from strategic relationships under research reimbursement agreements are recorded as a contra-research and development expense in the period reimbursable costs are incurred. There were no material receivables at December 31, 2020 or 2019 under these types of agreements. Advance receipts or other unearned reimbursements are included in accrued liabilities on the accompanying balance sheet until earned. Share-Based Compensation The Company accounts for its grants of stock options, stock appreciation rights, restricted shares, and restricted stock units and for its employee stock purchase plan in accordance with the provisions of general accounting principles for share-based payments. These accounting principles require the determination of the fair value of the share-based compensation at the grant date and the recognition of the related expense over the period in which the share-based compensation vests. The Company utilizes the Black-Scholes valuation model to determine the fair value of stock options and stock appreciation rights at the date of grant. The resulting compensation expense is recognized over the requisite service period, which is generally four years. Restricted shares and units granted to employees are valued at the fair market value at the date of grant. The Company amortizes the fair market value to expense over the service period. If the shares are subject to performance objectives, the resulting compensation expense is amortized over the anticipated vesting period and is subject to adjustment based on the actual achievement of objectives. Shares purchased by employees under the 2009 Employee Stock Purchase Plan are considered to be non-compensatory. Net Earnings (Loss) per Common Share Basic earnings (loss) per common share is computed by dividing the net earnings (loss) for the period by the weighted average number of common shares outstanding during the period. In periods where there is net income, we apply the two-class method to calculate basic and diluted net income (loss) per share of common stock, as our convertible preferred stock is a participating security. The two-class method is an earnings allocation formula that treats a participating security as having rights to earnings that otherwise would have been available to common stockholders. In periods where there is a net loss, the two-class method of computing earnings per share does not apply as our convertible preferred stock does not contractually participate in our losses. We compute diluted net income (loss) per common share using net income (loss) as the “control number” in determining whether potential common shares are dilutive, after giving consideration to all potentially dilutive common shares, including stock options, warrants, unvested restricted stock units outstanding during the period and potential issuance of stock upon the conversion of our convertible preferred stock issued and outstanding during the period, except where the effect of such securities would be antidilutive. The Company did not include any portion of unearned restricted shares, outstanding options, stock appreciation rights, warrants or convertible preferred stock in the calculation of diluted loss per common share because all such securities are anti-dilutive for all periods presented. The application of the two-class method of computing earnings per share under general accounting principles for participating securities is not applicable during these periods because those securities do not contractually participate in its losses. As of December 31, 2020, the Company had 2,456,979 shares of common stock issuable upon the exercise of outstanding options and stock appreciation rights at a weighted average exercise price of $<span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_c20201231__us-gaap--AwardTypeAxis__custom--StockOptionsandStockAppreciationRightsMember_pii">2.90 per share, 15,385 shares of common stock issuable upon the exercise of outstanding warrants at a weighted average exercise price of $0.70 per share, 43,483,062 shares of our common stock issuable upon conversion of our Series A Convertible Preferred Stock, 5,610,121 shares of our common stock issuable upon conversion of our Series B Convertible Preferred Stock and 1,112,473 shares of unvested restricted share units. The Company had no unearned restricted shares outstanding for the period ended December 31, 2020. Income Taxes In accordance with general accounting principles for income taxes, a deferred income tax asset or liability is determined based on the difference between the financial statement and tax basis of assets and liabilities as measured by the enacted tax rates that will be in effect when these differences reverse. The Company provides a valuation allowance against net deferred income tax assets unless, based upon available evidence, it is more likely than not the deferred income tax assets will be realized. Product Warranty Provisions The Company’s standard policy is to warrant all systems against defects in material or workmanship for one year following installation. The Company’s estimate of costs to service the warranty obligations is based on historical experience and current product performance trends. A regular review of warranty obligations is performed to determine the adequacy of the reserve and adjustments are made to the estimated warranty liability (included in other accrued liabilities) as appropriate. Patent Costs Costs related to filing and pursuing patent applications are expensed as incurred, as recoverability of such expenditures is uncertain. Concentrations of Risk The majority of the Company’s cash, cash equivalents and investments are deposited with one major financial institution in the U.S. Deposits in this institution exceed the amount of government provided insurance on such deposits. No single customer accounted for more than 10% of total revenue for the year ended December 31, 2020. Revenue from Biosense Webster Inc., related to royalties, accounted for $<span id="xdx_90F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn5n6_c20190101__20191231__srt--MajorCustomersAxis__custom--BiosenseWebsterIncMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--RevenueFromContractWithCustomerMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zQpekgrQs7A">2.8 million, or <span id="xdx_902_eus-gaap--ConcentrationRiskPercentage1_c20190101__20191231__srt--MajorCustomersAxis__custom--BiosenseWebsterIncMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--RevenueFromContractWithCustomerMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_pii">10%, of total net revenue for the year ended December 31, 2019. No other single customer accounted for more than 10% of total revenue for the year ended December 31, 2019. Revenue from customers in Finland accounted for $<span id="xdx_906_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn5n6_c20200101__20201231__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--RevenueFromContractWithCustomerMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember__srt--MajorCustomersAxis__custom--FinlandAccountedMember_zPo7GfyQoas4">2.7 million, or <span id="xdx_90C_eus-gaap--ConcentrationRiskPercentage1_pii_dp_uPercent_c20200101__20201231__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--RevenueFromContractWithCustomerMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember__srt--MajorCustomersAxis__custom--FinlandAccountedMember_z6jD4tM2mSX4">10%, of total revenue for the year ended December 31, 2020. No other single country, other than the U.S., accounted for more than 10% of total revenue for the years ended December 31, 2020 and 2019. Recently Issued Accounting Pronouncements In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” as part of its effort to reduce the complexity of accounting standards. The ASU is effective for fiscal years beginning after December 15, 2020. The Company does not expect that the adoption of this new guidance will have a material impact on the Company’s financial results. In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement.” The primary focus of ASU 2018-13 is to improve the effectiveness of the disclosures for fair value measurements by requiring public entities to disclose certain new information while modifying some existing disclosure requirements. The FASB issued this ASU as part of its broader disclosure framework project, which aims to improve the effectiveness of disclosures in the notes to the financial statements by focusing on requirements that clearly communicate the most important information to users of the financial statements. The ASU is effective for public companies for fiscal years beginning after December 15, 2019, and interim periods therein with early adoption permitted. The Company adopted with no impact to the Company’s financial statements. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments” and also issued subsequent amendments to the initial guidance under ASU 2018-19, ASU 2019-04 and ASU 2019-05. The standard modifies the measurement approach for credit losses on financial instruments, including trade receivables, from an incurred loss method to a current expected credit loss method, otherwise known as “CECL.” The standard requires the measurement of expected credit losses to be based on relevant information, including historical experience, current conditions and a forecast that is supportable. The standard is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years; early adoption is permitted. The standard must be adopted by applying a cumulative adjustment to retained earnings. The Company anticipates adopting the standard in the first quarter of 2023, although it does not expect a significant impact to the Company’s financial results.

Basis of Presentation The accompanying Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles (“U.S. GAAP”).

Cash and Cash Equivalents The Company considers all short-term investments purchased with original maturities of three months or less to be cash equivalents. The Company places its cash with high-credit-quality financial institutions and invests primarily in money market accounts. No cash was restricted at December 31, 2020 or 2019.

Compensating Cash Arrangement In July 2020, the Company entered into a letter of credit to support a commitment of less than $0.3 million. As a condition of the letter of credit, the Company is required to maintain a $0.3 million compensating balance until the expiration of the letter of credit.

300000

Accounts Receivable and Allowance for Uncollectible Accounts Accounts receivable primarily include amounts due from hospitals and distributors for acquisition of magnetic systems, associated disposable device sales and service contracts. Credit is granted on a limited basis, with balances due generally within 30 days of billing. The provision for bad debts is based upon management’s assessment of historical and expected net collections considering business and economic conditions and other collection indicators.

Financial Instruments Financial instruments consist of cash and cash equivalents, accounts receivable, accounts payable and debt. The carrying value of such amounts reported at the applicable balance sheet dates approximates fair value. The Company measures certain financial assets and liabilities at fair value on a recurring basis. General accounting principles for fair value measurement established a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (“Level 1”) and the lowest priority to unobservable inputs (“Level 3”). The Company’s financial assets consist of cash equivalents invested in money market funds. The Company had cash equivalents invested in money market funds in the amount of $1.4 million at December 31, 2020. The financial assets consisting of cash equivalents invested in money market funds are classified as Level 2 as described above and total interest income recorded for these investments was insignificant for the year ended December 31, 2020. As of December 31, 2020, the Company did not have any financial liabilities valued at fair value on a recurring basis. As of December 31, 2019, the Company did not have any financial assets or liabilities valued at fair value on a recurring basis.

1400000

Inventory The Company values its inventory at the lower of cost, as determined using the first-in, first-out (FIFO) method, or market. The Company periodically reviews its physical inventory and provides a reserve upon identification of potential excess or obsolete items. Excess manufacturing overhead costs attributable to idle facility expenses or abnormally low production volumes are excluded from inventory and recorded as an expense in the period incurred.

Property and Equipment Property and equipment consist primarily of leasehold improvements, computer, office, research and demonstration equipment, and equipment held for lease and are stated at cost. Depreciation is calculated using the straight-line method over the estimated useful lives or life of the base lease term, ranging from three to ten years.

Long-Lived Assets If facts and circumstances suggest that a long-lived asset may be impaired, the carrying value is reviewed. If this review indicates that the carrying value of the asset will not be recovered, as determined based on projected undiscounted cash flows related to the asset over its remaining life, the carrying value of the asset is reduced to its estimated fair value, which in most cases is estimated based upon Level 2 or Level 3 inputs.

Intangible Assets Intangible assets consist of purchased technology and intellectual property rights valued at cost on the acquisition date and amortized over their estimated useful lives of 10-15 years. If facts and circumstances suggest that an intangible asset may be impaired, the carrying value is reviewed. If this review indicates that the carrying value of the asset will not be recovered, as determined based on projected undiscounted cash flows related to the asset over its remaining life, the carrying value of the asset is reduced to its estimated fair value, which in most cases is estimated based upon Level 2 or Level 3 inputs.

P10Y

P15Y

Use of Estimates The preparation of financial statements in conformity with U.S. generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of income and loss during the reporting period. Actual results could differ from those estimates.

Revenue and Costs of Revenue Revenue Recognition The Company accounts for revenue in accordance with Accounting Standards Codification Topic 606 (“ASC 606”), Revenue from Contracts with Customers. We generate revenue from initial capital sales of systems as well as recurring revenue from the sale of our proprietary disposable devices, from royalties paid to the Company on the sale by Biosense Webster of co-developed catheters, and from revenue including ongoing software updates and service contracts. We account for a contract with a customer when there is a legally enforceable contract between the Company and the customer, the rights of the parties are identified, the contract has commercial substance, and collectability of the contract consideration is probable. We record our revenue based on consideration specified in the contract with each customer, net of any taxes collected from customers that are remitted to government authorities. For contracts containing multiple products and services the Company accounts for individual products and services as separate performance obligations if they are distinct, which is if a product or service is separately identifiable from other items in the bundled package, and if a customer can benefit from it on its own or with other resources that are readily available to the customer. The Company recognizes revenues as the performance obligations are satisfied by transferring control of the product or service to a customer. For arrangements with multiple performance obligations, revenue is allocated to each performance obligation based on its relative standalone selling price. Standalone selling prices are based on observable prices at which the Company separately sells the products or services. If a standalone selling price is not directly observable, then the Company estimates the standalone selling price considering market conditions and entity-specific factors including, but not limited to, features and functionality of the products and services and market conditions. The Company regularly reviews standalone selling prices and updates these estimates if necessary. Our revenue recognition policy affects the following revenue streams in our business as follows: Systems: Contracts related to the sale of systems typically contain separate obligations for the delivery of system(s), installation and an implied obligation to provide software enhancements if and when available for one year following installation. Revenue is recognized when the Company transfers control to the customer, which is generally at the point when acceptance occurs that indicates customer acknowledgment of delivery or installation, depending on the terms of the arrangement. Revenue from the implied obligation to deliver software enhancements if and when available is recognized ratably over the first year following installation of the system as the customer receives the right to software updates throughout the period and is included in Other Recurring Revenue. The Company’s system contracts generally do not provide a right of return. Systems are generally covered by a one-year assurance type warranty; warranty costs were less than $0.1 million for the periods presented. Revenue from system delivery and installation represented 14% and 7% of revenue for the years ended December 31, 2020 and 2019, respectively. Disposables: Revenue from sales of disposable products is recognized when control is transferred to the customers, which generally occurs at the time of shipment, but can also occur at the time of delivery depending on the customer arrangement. Disposable products are covered by a warranty that provides for the return of defective products. Warranty costs were not material for the periods presented. Disposable revenue represented 28% and 33% of revenue for the years ended December 31, 2020 and 2019, respectively. Royalty: The Company is entitled to royalty payments from Biosense Webster, payable quarterly based on net revenues from sales of the co-developed catheters. Royalty revenue from the co-developed catheters represented 8% and 10% of revenue for the years ended December 31, 2020 and 2019, respectively Other Recurring Revenue: Other recurring revenue includes revenue from product maintenance plans, other post warranty maintenance, and the implied obligation to provide software enhancements if and when available for a specified period, typically one year following installation of our systems. Revenue from services and software enhancements is deferred and amortized over the service or update period, which is typically one year. Revenue related to services performed on a time-and-materials basis is recognized when performed. Other recurring revenue represented 46% and 47% of revenue for the years ended December 31, 2020 and 2019, respectively. Sublease Revenue: The adoption of new lease accounting guidance as of January 1, 2019 requires the Company to record sublease income as revenue beginning in 2019. Sublease revenue represented 4% and 3% of revenue for the years ended December 31, 2020 and 2019, respectively. Schedule of Revenue Disaggregated by Type <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt"> </td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Systems</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231__srt--ProductOrServiceAxis__custom--SystemsMember_pp0p0" style="width: 16%; text-align: right" title="Total revenue">3,626,284</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231__srt--ProductOrServiceAxis__custom--SystemsMember_pp0p0" style="width: 16%; text-align: right" title="Total revenue">2,066,253</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Disposables, service and accessories</td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231__srt--ProductOrServiceAxis__custom--DisposablesServiceAndAccessoriesMember_pp0p0" style="text-align: right" title="Total revenue">22,017,631</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231__srt--ProductOrServiceAxis__custom--DisposablesServiceAndAccessoriesMember_pp0p0" style="text-align: right" title="Total revenue">25,850,174</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 1.5pt">Sublease</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--SubleaseIncome_pp0p0_c20200101__20201231_zQYtuMpsTerh" style="border-bottom: Black 1.5pt solid; text-align: right" title="Sublease">986,120</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_983_eus-gaap--SubleaseIncome_pp0p0_c20190101__20191231_zoQftAfin9mk" style="border-bottom: Black 1.5pt solid; text-align: right" title="Sublease">986,123</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Total revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231_pp0p0" style="text-align: right" title="Total revenue">26,630,035</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231_pp0p0" style="text-align: right" title="Total revenue">28,902,550</td><td style="text-align: left"> </td></tr> </table> Transaction price allocated to remaining performance obligations relates to amounts allocated to products and services for which the revenue has not yet been recognized. A significant portion of this amount relates to the Company’s systems contracts and obligations that will be recognized as revenue in future periods. These obligations are generally satisfied within two years after contract inception but may occasionally extend longer. Transaction price representing revenue to be earned on remaining performance obligations on system contracts was approximately $6.9 million as of December 31, 2020. Performance obligations arising from contracts for disposables, royalty and service are generally expected to be satisfied within one year after entering into the contract. <p id="xdx_891_eus-gaap--ContractWithCustomerAssetAndLiabilityTableTextBlock_zztlu5NLeY57" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 24.5pt; text-align: justify; text-indent: 0.3in">The following information summarizes the Company’s contract assets and liabilities: Summary of Contract Assets and Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Contract Assets - unbilled receivables</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerAssetNet_iI_pp0p0_c20201231_z1g6AdVZnaol" style="width: 16%; text-align: right" title="Contract Assets - unbilled receivables">284,415</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--ContractWithCustomerAssetNet_iI_pp0p0_c20191231_z4l14lHGslZ3" style="width: 16%; text-align: right">168,445</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Product shipped, revenue deferred</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--ContractWithCustomerLiability_c20201231__srt--ProductOrServiceAxis__custom--ProductShippedRevenueDeferredMember_pp0p0" style="text-align: right" title="Total deferred revenue">645,200</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerLiability_c20191231__srt--ProductOrServiceAxis__custom--ProductShippedRevenueDeferredMember_pp0p0" style="text-align: right" title="Total deferred revenue">674,324</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Deferred service and license fees</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--ContractWithCustomerLiability_c20201231__srt--ProductOrServiceAxis__custom--DeferredServiceAndLicenseFeesMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total deferred revenue">5,186,485</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--ContractWithCustomerLiability_c20191231__srt--ProductOrServiceAxis__custom--DeferredServiceAndLicenseFeesMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total deferred revenue">4,972,389</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total deferred revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ContractWithCustomerLiability_c20201231_pp0p0" style="text-align: right" title="Total deferred revenue">5,831,685</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ContractWithCustomerLiability_c20191231_pp0p0" style="text-align: right" title="Total deferred revenue">5,646,713</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Less: Long-term deferred revenue</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--ContractWithCustomerLiabilityNoncurrent_iNI_pp0p0_di_c20201231_z9SCVtPJCuR5" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Long-term deferred revenue">(548,915</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98E_eus-gaap--ContractWithCustomerLiabilityNoncurrent_iNI_pp0p0_di_c20191231_zKpEC8srpExl" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Long-term deferred revenue">(554,258</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Total current deferred revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerLiabilityCurrent_c20201231_pp0p0" style="text-align: right" title="Total current deferred revenue">5,282,770</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_984_eus-gaap--ContractWithCustomerLiabilityCurrent_c20191231_pp0p0" style="text-align: right" title="Total current deferred revenue">5,092,455</td><td style="text-align: left"> </td></tr> </table> The Company invoices its customers based on the billing schedules in its sales arrangements. Contract assets primarily represent the difference between the revenue that was earned but not billed on service contracts and revenue from system contracts that was recognized based on the relative selling price of the related performance obligations and the contractual billing terms in the arrangements. Deferred revenue is primarily related to service contracts, for which the service fees are billed up-front, generally quarterly or annually, and for amounts billed in advance for system contracts for which some performance obligations remain outstanding. For service contracts, the associated deferred revenue is generally recognized ratably over the service period. For system contracts, the associated deferred revenue is recognized when the remaining performance obligations are satisfied. The Company did not have any impairment losses on its contract assets for the periods presented. Revenue recognized for the years ended December 31, 2020 and 2019, that was included in the deferred revenue balance at the beginning of each reporting period was $5.0 million and $5.6 million, respectively. The Company has determined that sales incentive programs for the Company’s sales team meet the requirements to be capitalized as the Company expects to generate future economic benefits from the related revenue generating contracts after the initial capital sales transaction. The costs capitalized as contract acquisition costs included in prepaid expenses and other assets, in the Company’s balance sheet was $0.3 million as of December 31, 2020 and December 31, 2019. The Company did not incur any impairment losses during any of the periods presented. Costs of systems revenue include direct product costs, installation labor and other costs, estimated warranty costs, and initial training and product maintenance costs. These costs are recorded at the time of sale. Costs of disposable revenue include direct product costs and estimated warranty costs and are recorded at the time of sale. Cost of revenue from services and license fees are recorded when incurred.

100000

0.14

0.07

0.28

0.33

0.08

0.10

0.46

0.47

0.04

0.03

Schedule of Revenue Disaggregated by Type <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt"> </td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Systems</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231__srt--ProductOrServiceAxis__custom--SystemsMember_pp0p0" style="width: 16%; text-align: right" title="Total revenue">3,626,284</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231__srt--ProductOrServiceAxis__custom--SystemsMember_pp0p0" style="width: 16%; text-align: right" title="Total revenue">2,066,253</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Disposables, service and accessories</td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231__srt--ProductOrServiceAxis__custom--DisposablesServiceAndAccessoriesMember_pp0p0" style="text-align: right" title="Total revenue">22,017,631</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231__srt--ProductOrServiceAxis__custom--DisposablesServiceAndAccessoriesMember_pp0p0" style="text-align: right" title="Total revenue">25,850,174</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 1.5pt">Sublease</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--SubleaseIncome_pp0p0_c20200101__20201231_zQYtuMpsTerh" style="border-bottom: Black 1.5pt solid; text-align: right" title="Sublease">986,120</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_983_eus-gaap--SubleaseIncome_pp0p0_c20190101__20191231_zoQftAfin9mk" style="border-bottom: Black 1.5pt solid; text-align: right" title="Sublease">986,123</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Total revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20200101__20201231_pp0p0" style="text-align: right" title="Total revenue">26,630,035</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_c20190101__20191231_pp0p0" style="text-align: right" title="Total revenue">28,902,550</td><td style="text-align: left"> </td></tr> </table>

3626284

2066253

22017631

25850174

986120

986123

26630035

28902550

6900000

<p id="xdx_891_eus-gaap--ContractWithCustomerAssetAndLiabilityTableTextBlock_zztlu5NLeY57" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0 0pt 24.5pt; text-align: justify; text-indent: 0.3in">The following information summarizes the Company’s contract assets and liabilities: Summary of Contract Assets and Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Contract Assets - unbilled receivables</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerAssetNet_iI_pp0p0_c20201231_z1g6AdVZnaol" style="width: 16%; text-align: right" title="Contract Assets - unbilled receivables">284,415</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_986_eus-gaap--ContractWithCustomerAssetNet_iI_pp0p0_c20191231_z4l14lHGslZ3" style="width: 16%; text-align: right">168,445</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Product shipped, revenue deferred</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98B_eus-gaap--ContractWithCustomerLiability_c20201231__srt--ProductOrServiceAxis__custom--ProductShippedRevenueDeferredMember_pp0p0" style="text-align: right" title="Total deferred revenue">645,200</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerLiability_c20191231__srt--ProductOrServiceAxis__custom--ProductShippedRevenueDeferredMember_pp0p0" style="text-align: right" title="Total deferred revenue">674,324</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Deferred service and license fees</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98F_eus-gaap--ContractWithCustomerLiability_c20201231__srt--ProductOrServiceAxis__custom--DeferredServiceAndLicenseFeesMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total deferred revenue">5,186,485</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--ContractWithCustomerLiability_c20191231__srt--ProductOrServiceAxis__custom--DeferredServiceAndLicenseFeesMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total deferred revenue">4,972,389</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total deferred revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_987_eus-gaap--ContractWithCustomerLiability_c20201231_pp0p0" style="text-align: right" title="Total deferred revenue">5,831,685</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--ContractWithCustomerLiability_c20191231_pp0p0" style="text-align: right" title="Total deferred revenue">5,646,713</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Less: Long-term deferred revenue</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_987_eus-gaap--ContractWithCustomerLiabilityNoncurrent_iNI_pp0p0_di_c20201231_z9SCVtPJCuR5" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Long-term deferred revenue">(548,915</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98E_eus-gaap--ContractWithCustomerLiabilityNoncurrent_iNI_pp0p0_di_c20191231_zKpEC8srpExl" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Long-term deferred revenue">(554,258</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Total current deferred revenue</td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ContractWithCustomerLiabilityCurrent_c20201231_pp0p0" style="text-align: right" title="Total current deferred revenue">5,282,770</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_984_eus-gaap--ContractWithCustomerLiabilityCurrent_c20191231_pp0p0" style="text-align: right" title="Total current deferred revenue">5,092,455</td><td style="text-align: left"> </td></tr> </table>

284415

168445

645200

674324

5186485

4972389

5831685

5646713

548915

554258

5282770

5092455

5000000.0

5600000

300000

Research and Development Costs Internal research and development costs are expensed in the period incurred. Amounts receivable from strategic relationships under research reimbursement agreements are recorded as a contra-research and development expense in the period reimbursable costs are incurred. There were no material receivables at December 31, 2020 or 2019 under these types of agreements. Advance receipts or other unearned reimbursements are included in accrued liabilities on the accompanying balance sheet until earned.

Share-Based Compensation The Company accounts for its grants of stock options, stock appreciation rights, restricted shares, and restricted stock units and for its employee stock purchase plan in accordance with the provisions of general accounting principles for share-based payments. These accounting principles require the determination of the fair value of the share-based compensation at the grant date and the recognition of the related expense over the period in which the share-based compensation vests. The Company utilizes the Black-Scholes valuation model to determine the fair value of stock options and stock appreciation rights at the date of grant. The resulting compensation expense is recognized over the requisite service period, which is generally four years. Restricted shares and units granted to employees are valued at the fair market value at the date of grant. The Company amortizes the fair market value to expense over the service period. If the shares are subject to performance objectives, the resulting compensation expense is amortized over the anticipated vesting period and is subject to adjustment based on the actual achievement of objectives. Shares purchased by employees under the 2009 Employee Stock Purchase Plan are considered to be non-compensatory.

Net Earnings (Loss) per Common Share Basic earnings (loss) per common share is computed by dividing the net earnings (loss) for the period by the weighted average number of common shares outstanding during the period. In periods where there is net income, we apply the two-class method to calculate basic and diluted net income (loss) per share of common stock, as our convertible preferred stock is a participating security. The two-class method is an earnings allocation formula that treats a participating security as having rights to earnings that otherwise would have been available to common stockholders. In periods where there is a net loss, the two-class method of computing earnings per share does not apply as our convertible preferred stock does not contractually participate in our losses. We compute diluted net income (loss) per common share using net income (loss) as the “control number” in determining whether potential common shares are dilutive, after giving consideration to all potentially dilutive common shares, including stock options, warrants, unvested restricted stock units outstanding during the period and potential issuance of stock upon the conversion of our convertible preferred stock issued and outstanding during the period, except where the effect of such securities would be antidilutive. The Company did not include any portion of unearned restricted shares, outstanding options, stock appreciation rights, warrants or convertible preferred stock in the calculation of diluted loss per common share because all such securities are anti-dilutive for all periods presented. The application of the two-class method of computing earnings per share under general accounting principles for participating securities is not applicable during these periods because those securities do not contractually participate in its losses. As of December 31, 2020, the Company had 2,456,979 shares of common stock issuable upon the exercise of outstanding options and stock appreciation rights at a weighted average exercise price of $<span id="xdx_90F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_c20201231__us-gaap--AwardTypeAxis__custom--StockOptionsandStockAppreciationRightsMember_pii">2.90 per share, 15,385 shares of common stock issuable upon the exercise of outstanding warrants at a weighted average exercise price of $0.70 per share, 43,483,062 shares of our common stock issuable upon conversion of our Series A Convertible Preferred Stock, 5,610,121 shares of our common stock issuable upon conversion of our Series B Convertible Preferred Stock and 1,112,473 shares of unvested restricted share units. The Company had no unearned restricted shares outstanding for the period ended December 31, 2020.

2456979

2.90

15385

0.70

43483062

5610121

1112473

Income Taxes In accordance with general accounting principles for income taxes, a deferred income tax asset or liability is determined based on the difference between the financial statement and tax basis of assets and liabilities as measured by the enacted tax rates that will be in effect when these differences reverse. The Company provides a valuation allowance against net deferred income tax assets unless, based upon available evidence, it is more likely than not the deferred income tax assets will be realized.

Product Warranty Provisions The Company’s standard policy is to warrant all systems against defects in material or workmanship for one year following installation. The Company’s estimate of costs to service the warranty obligations is based on historical experience and current product performance trends. A regular review of warranty obligations is performed to determine the adequacy of the reserve and adjustments are made to the estimated warranty liability (included in other accrued liabilities) as appropriate.

Patent Costs Costs related to filing and pursuing patent applications are expensed as incurred, as recoverability of such expenditures is uncertain.

Concentrations of Risk The majority of the Company’s cash, cash equivalents and investments are deposited with one major financial institution in the U.S. Deposits in this institution exceed the amount of government provided insurance on such deposits. No single customer accounted for more than 10% of total revenue for the year ended December 31, 2020. Revenue from Biosense Webster Inc., related to royalties, accounted for $<span id="xdx_90F_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn5n6_c20190101__20191231__srt--MajorCustomersAxis__custom--BiosenseWebsterIncMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--RevenueFromContractWithCustomerMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_zQpekgrQs7A">2.8 million, or <span id="xdx_902_eus-gaap--ConcentrationRiskPercentage1_c20190101__20191231__srt--MajorCustomersAxis__custom--BiosenseWebsterIncMember__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--RevenueFromContractWithCustomerMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember_pii">10%, of total net revenue for the year ended December 31, 2019. No other single customer accounted for more than 10% of total revenue for the year ended December 31, 2019. Revenue from customers in Finland accounted for $<span id="xdx_906_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pn5n6_c20200101__20201231__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--RevenueFromContractWithCustomerMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember__srt--MajorCustomersAxis__custom--FinlandAccountedMember_zPo7GfyQoas4">2.7 million, or <span id="xdx_90C_eus-gaap--ConcentrationRiskPercentage1_pii_dp_uPercent_c20200101__20201231__us-gaap--ConcentrationRiskByBenchmarkAxis__us-gaap--RevenueFromContractWithCustomerMember__us-gaap--ConcentrationRiskByTypeAxis__us-gaap--CustomerConcentrationRiskMember__srt--MajorCustomersAxis__custom--FinlandAccountedMember_z6jD4tM2mSX4">10%, of total revenue for the year ended December 31, 2020. No other single country, other than the U.S., accounted for more than 10% of total revenue for the years ended December 31, 2020 and 2019.

2800000

2700000

0.10

Recently Issued Accounting Pronouncements In December 2019, the FASB issued ASU 2019-12, “Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes” as part of its effort to reduce the complexity of accounting standards. The ASU is effective for fiscal years beginning after December 15, 2020. The Company does not expect that the adoption of this new guidance will have a material impact on the Company’s financial results. In August 2018, the FASB issued ASU 2018-13, “Fair Value Measurement (Topic 820): Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement.” The primary focus of ASU 2018-13 is to improve the effectiveness of the disclosures for fair value measurements by requiring public entities to disclose certain new information while modifying some existing disclosure requirements. The FASB issued this ASU as part of its broader disclosure framework project, which aims to improve the effectiveness of disclosures in the notes to the financial statements by focusing on requirements that clearly communicate the most important information to users of the financial statements. The ASU is effective for public companies for fiscal years beginning after December 15, 2019, and interim periods therein with early adoption permitted. The Company adopted with no impact to the Company’s financial statements. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments” and also issued subsequent amendments to the initial guidance under ASU 2018-19, ASU 2019-04 and ASU 2019-05. The standard modifies the measurement approach for credit losses on financial instruments, including trade receivables, from an incurred loss method to a current expected credit loss method, otherwise known as “CECL.” The standard requires the measurement of expected credit losses to be based on relevant information, including historical experience, current conditions and a forecast that is supportable. The standard is effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years; early adoption is permitted. The standard must be adopted by applying a cumulative adjustment to retained earnings. The Company anticipates adopting the standard in the first quarter of 2023, although it does not expect a significant impact to the Company’s financial results.

3. Inventory Inventory consists of the following: Schedule of Inventories <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20201231_zMMksDB8n4Pf" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20191231_zkvNNFY3W841" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_40B_eus-gaap--InventoryRawMaterials_iI_pp0p0_maINzrsY_zWBb7q0ZcMca" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Raw materials</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right" title="Raw materials">2,950,912</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right" title="Raw materials">3,063,532</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--InventoryWorkInProcess_iI_pp0p0_maINzrsY_zA7fMnDceeJl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Work in process</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Work in process">433,026</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">515,262</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--InventoryFinishedGoods_iI_pp0p0_maINzrsY_zdffvLKo7d04" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Finished goods</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Finished goods">2,987,039</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Finished goods">2,164,187</td><td style="text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--InventoryValuationReserves_iNI_pp0p0_di_msINzrsY_zc9a85riUTxg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Reserve for obsolescence</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right" title="Reserve for obsolescence">(3,075,520</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right" title="Reserve for obsolescence">(3,895,451</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_404_eus-gaap--InventoryNet_iTI_pp0p0_mtINzrsY_zJnZV3OJnAll" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total inventory</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right" title="Total inventory">3,295,457</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right" title="Total inventory">1,847,530</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

Inventory consists of the following: Schedule of Inventories <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20201231_zMMksDB8n4Pf" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20191231_zkvNNFY3W841" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_40B_eus-gaap--InventoryRawMaterials_iI_pp0p0_maINzrsY_zWBb7q0ZcMca" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Raw materials</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right" title="Raw materials">2,950,912</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right" title="Raw materials">3,063,532</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--InventoryWorkInProcess_iI_pp0p0_maINzrsY_zA7fMnDceeJl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Work in process</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Work in process">433,026</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">515,262</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--InventoryFinishedGoods_iI_pp0p0_maINzrsY_zdffvLKo7d04" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Finished goods</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Finished goods">2,987,039</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Finished goods">2,164,187</td><td style="text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--InventoryValuationReserves_iNI_pp0p0_di_msINzrsY_zc9a85riUTxg" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Reserve for obsolescence</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right" title="Reserve for obsolescence">(3,075,520</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right" title="Reserve for obsolescence">(3,895,451</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_404_eus-gaap--InventoryNet_iTI_pp0p0_mtINzrsY_zJnZV3OJnAll" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total inventory</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right" title="Total inventory">3,295,457</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right" title="Total inventory">1,847,530</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

2950912

3063532

433026

515262

2987039

2164187

3075520

3895451

3295457

1847530

4. Prepaid Expenses and Other Current Assets <p id="xdx_899_eus-gaap--DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock_z9neGwFBZ7bj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 24.5pt">Prepaid expenses and other assets consist of the following: Schedule of Prepaid Expenses and Other Assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49A_20201231_zhCCH7JHFT8i" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20191231_zsnV68ySHEk" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_404_eus-gaap--PrepaidExpenseCurrentAndNoncurrent_iI_pp0p0_maPEAOAzZSW_zQeLYv9F3bcc" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Prepaid expenses</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">754,062</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">640,252</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_400_ecustom--PrepaidCommissionsCurrentAndNoncurrent_iI_pp0p0_maPEAOAzZSW_zoeQ4oGdQ5Db" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Prepaid commissions</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">271,174</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">336,594</td><td style="text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--DepositsAssets_iI_pp0p0_maPEAOAzZSW_zhJ8kloPS5v8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Deposits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">855,970</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">712,179</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--OtherAssets_iI_pp0p0_maPEAOAzZSW_z0rxe1EIUIk8" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Other assets</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">143,323</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">-</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--PrepaidExpenseAndOtherAssets_iTI_pp0p0_mtPEAOAzZSW_z7wrOxi8mrMd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Total prepaid expenses and other assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,024,529</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,689,025</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--PrepaidExpenseAndOtherAssetsNoncurrent_iNI_pp0p0_di_zHuXO2JAHPDf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Less: Noncurrent prepaid expenses and other assets</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(308,515</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(218,103</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_406_eus-gaap--PrepaidExpenseAndOtherAssetsCurrent_iI_pp0p0_zXwWJkvsluzd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 2.5pt">Total current prepaid expenses and other assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,716,014</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,470,922</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

<p id="xdx_899_eus-gaap--DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureTextBlock_z9neGwFBZ7bj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 24.5pt">Prepaid expenses and other assets consist of the following: Schedule of Prepaid Expenses and Other Assets <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49A_20201231_zhCCH7JHFT8i" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20191231_zsnV68ySHEk" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_404_eus-gaap--PrepaidExpenseCurrentAndNoncurrent_iI_pp0p0_maPEAOAzZSW_zQeLYv9F3bcc" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Prepaid expenses</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">754,062</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">640,252</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_400_ecustom--PrepaidCommissionsCurrentAndNoncurrent_iI_pp0p0_maPEAOAzZSW_zoeQ4oGdQ5Db" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Prepaid commissions</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">271,174</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">336,594</td><td style="text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--DepositsAssets_iI_pp0p0_maPEAOAzZSW_zhJ8kloPS5v8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Deposits</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">855,970</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">712,179</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--OtherAssets_iI_pp0p0_maPEAOAzZSW_z0rxe1EIUIk8" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Other assets</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">143,323</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">-</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--PrepaidExpenseAndOtherAssets_iTI_pp0p0_mtPEAOAzZSW_z7wrOxi8mrMd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify">Total prepaid expenses and other assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,024,529</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,689,025</td><td style="text-align: left"> </td></tr> <tr id="xdx_40D_eus-gaap--PrepaidExpenseAndOtherAssetsNoncurrent_iNI_pp0p0_di_zHuXO2JAHPDf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Less: Noncurrent prepaid expenses and other assets</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(308,515</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(218,103</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_406_eus-gaap--PrepaidExpenseAndOtherAssetsCurrent_iI_pp0p0_zXwWJkvsluzd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify; padding-bottom: 2.5pt">Total current prepaid expenses and other assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,716,014</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,470,922</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

754062

640252

271174 336594

855970

712179

143323

2024529

1689025

308515

218103

1716014

1470922

5. Property and Equipment Property and equipment consist of the following: Schedule of Property and Equipment <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Equipment</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_989_eus-gaap--PropertyPlantAndEquipmentGross_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember_pp0p0" style="width: 16%; text-align: right" title="Gross property and equipment">6,488,984</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--PropertyPlantAndEquipmentGross_c20191231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember_pp0p0" style="width: 16%; text-align: right" title="Gross property and equipment">6,485,873</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Leasehold improvements</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_988_eus-gaap--PropertyPlantAndEquipmentGross_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Gross property and equipment">2,338,441</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_980_eus-gaap--PropertyPlantAndEquipmentGross_c20191231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Gross property and equipment">2,338,441</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--PropertyPlantAndEquipmentGross_c20201231_pp0p0" style="text-align: right" title="Gross property and equipment">8,827,425</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--PropertyPlantAndEquipmentGross_c20191231_pp0p0" style="text-align: right" title="Gross property and equipment">8,824,314</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Less: Accumulated depreciation</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pp0p0_di_c20201231_z44CqW7ndA3i" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Accumulated depreciation">(8,632,296</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_983_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pp0p0_di_c20191231_zYD4B2evIxJi" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Accumulated depreciation">(8,573,871</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net property and equipment</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_985_eus-gaap--PropertyPlantAndEquipmentNet_c20201231_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Net property and equipment">195,129</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98D_eus-gaap--PropertyPlantAndEquipmentNet_c20191231_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Net property and equipment">250,443</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

Property and equipment consist of the following: Schedule of Property and Equipment <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Equipment</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_989_eus-gaap--PropertyPlantAndEquipmentGross_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember_pp0p0" style="width: 16%; text-align: right" title="Gross property and equipment">6,488,984</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_981_eus-gaap--PropertyPlantAndEquipmentGross_c20191231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--EquipmentMember_pp0p0" style="width: 16%; text-align: right" title="Gross property and equipment">6,485,873</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Leasehold improvements</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_988_eus-gaap--PropertyPlantAndEquipmentGross_c20201231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Gross property and equipment">2,338,441</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_980_eus-gaap--PropertyPlantAndEquipmentGross_c20191231__us-gaap--PropertyPlantAndEquipmentByTypeAxis__us-gaap--LeaseholdImprovementsMember_pp0p0" style="border-bottom: Black 1.5pt solid; text-align: right" title="Gross property and equipment">2,338,441</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: justify"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--PropertyPlantAndEquipmentGross_c20201231_pp0p0" style="text-align: right" title="Gross property and equipment">8,827,425</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--PropertyPlantAndEquipmentGross_c20191231_pp0p0" style="text-align: right" title="Gross property and equipment">8,824,314</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Less: Accumulated depreciation</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pp0p0_di_c20201231_z44CqW7ndA3i" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Accumulated depreciation">(8,632,296</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_983_eus-gaap--AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_iNI_pp0p0_di_c20191231_zYD4B2evIxJi" style="border-bottom: Black 1.5pt solid; text-align: right" title="Less: Accumulated depreciation">(8,573,871</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net property and equipment</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_985_eus-gaap--PropertyPlantAndEquipmentNet_c20201231_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Net property and equipment">195,129</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98D_eus-gaap--PropertyPlantAndEquipmentNet_c20191231_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Net property and equipment">250,443</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

6488984

6485873

2338441

8827425

8824314

8632296

8573871

195129

250443

6. Leases A lease is defined as a contract, or part of a contract, that conveys the right to control the use of identified property, plant or equipment for a period of time in exchange for consideration. On January 1, 2019, the Company adopted ASU No. 2016-02 “Leases” (Topic 842) and all subsequent ASUs that modified Topic 842. The Company determines if an arrangement contains a lease at inception. For the Company, Accounting Standards Codification (“ASC 842”) primarily affected the accounting treatment for operating lease agreements in which the Company is the lessee. The Company leases its facilities under operating leases, which were previously not recognized on the Company’s balance sheets. With the adoption of ASC 842, operating lease agreements are required to be recognized on the balance sheet as a right-of-use (“ROU”) asset and a corresponding lease liability. These leases do not have significant rent escalation holidays, concessions, leasehold improvement incentives, or other build-out clauses. Further, the leases do not contain contingent rent provisions. Many of our leases include both lease (i.e., fixed payments including rent, taxes, and insurance costs) and non-lease components (i.e., common-area or other maintenance costs) which are accounted for as a single lease component as we have elected the practical expedient to group lease and non-lease components for all leases. A portion of our principal executive office is subleased to a third party through 2021. The sublease does not have significant rent escalation holidays, concessions, leasehold improvement incentives, or other build-out clauses. In addition, the sublease does not contain contingent rent provisions nor are there options to extend or terminate the sublease. The Company’s lease agreements often include one or more options to renew at the Company’s discretion. If at lease inception, the Company considers the exercising of a renewal option to be reasonably certain, the Company will include the extended term in the calculation of the ROU asset and lease liability. The Company elected not to include short-term leases (i.e. leases with initial terms of twelve months or less) on the balance sheet. The calculated amounts of the ROU assets and lease liabilities are impacted by the length of the lease term and the discount rate used to calculate the present value of the minimum lease payments. ASC 842 requires the use of the discount rate implicit in the lease whenever this rate is readily determinable. As this rate is rarely determinable, the Company utilizes its incremental borrowing rate at lease inception. At December 31, 2020, the weighted average discount rate for operating leases was 9.0% and the weighted average remaining lease term for operating lease term is 1.0 year. The following table represents lease costs and other lease information: Schedule of Lease Costs and Other Lease Information <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20200101__20201231_zeUxPqns6K52" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20190101__20191231_zbdTEE2o75hh" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center"> 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_401_eus-gaap--OperatingLeaseCost_maLCz2MH_zq3JrKZI0C5f" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Operating lease cost</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">2,340,428</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">2,342,344</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--ShortTermLeaseCost_maLCz2MH_zMwLsBXjqIy9" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Short-term lease cost</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">66,865</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">77,185</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--SubleaseIncome_iN_pp0p0_di_msLCz2MH_zUkLeMwLbp83" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Sublease income</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(986,120</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(986,123</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_400_eus-gaap--LeaseCost_iT_pp0p0_mtLCz2MH_ziEr6FtuSnv7" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Total net lease cost</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,421,173</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,433,406</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--OperatingLeasePayments_i_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Cash paid within operating cash flows</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,486,309</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,458,606</td><td style="text-align: left"> </td></tr> </table> The initial recognition of the right of use assets in 2019 was $6.2 million. Variable lease costs consist primarily of taxes, insurance, and common area or other maintenance costs for our leased facilities and equipment which are paid based on actual costs incurred. Future minimum payments for operating leases with initial or remaining terms of one year or more as of December 31, 2020, excluding sublease income, were as follows: Schedule of Future Minimum Operating Lease Payments <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20201231_za1sosHt9TGe" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_405_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pp0p0" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="vertical-align: top; width: 78%; text-align: left; padding-bottom: 1.5pt">2021</td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; width: 18%; text-align: right">2,382,660</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iTIC_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Total lease payments</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,382,660</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pp0p0_di_zBI5Efx3MI3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 20pt; text-align: left; padding-bottom: 1.5pt">Less: Interest</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(95,173</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40F_eus-gaap--OperatingLeaseLiability_iI_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; padding-bottom: 2.5pt">Present value of lease liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,287,487</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> The undiscounted future cash flows to be received under the sublease are $1.0 million in 2021.

0.090

P1Y

The following table represents lease costs and other lease information: Schedule of Lease Costs and Other Lease Information <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20200101__20201231_zeUxPqns6K52" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49E_20190101__20191231_zbdTEE2o75hh" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center"> 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_401_eus-gaap--OperatingLeaseCost_maLCz2MH_zq3JrKZI0C5f" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Operating lease cost</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">2,340,428</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">2,342,344</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--ShortTermLeaseCost_maLCz2MH_zMwLsBXjqIy9" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Short-term lease cost</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">66,865</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">77,185</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--SubleaseIncome_iN_pp0p0_di_msLCz2MH_zUkLeMwLbp83" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Sublease income</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(986,120</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(986,123</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_400_eus-gaap--LeaseCost_iT_pp0p0_mtLCz2MH_ziEr6FtuSnv7" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Total net lease cost</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,421,173</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">1,433,406</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--OperatingLeasePayments_i_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Cash paid within operating cash flows</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,486,309</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">2,458,606</td><td style="text-align: left"> </td></tr> </table>

2340428

2342344

66865

77185

986120

986123

1421173

1433406

2486309

2458606

6200000

Future minimum payments for operating leases with initial or remaining terms of one year or more as of December 31, 2020, excluding sublease income, were as follows: Schedule of Future Minimum Operating Lease Payments <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_497_20201231_za1sosHt9TGe" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_405_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_iI_pp0p0" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="vertical-align: top; width: 78%; text-align: left; padding-bottom: 1.5pt">2021</td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; width: 18%; text-align: right">2,382,660</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--LesseeOperatingLeaseLiabilityPaymentsDue_iTIC_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Total lease payments</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,382,660</td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_iNI_pp0p0_di_zBI5Efx3MI3" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 20pt; text-align: left; padding-bottom: 1.5pt">Less: Interest</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(95,173</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40F_eus-gaap--OperatingLeaseLiability_iI_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; padding-bottom: 2.5pt">Present value of lease liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,287,487</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

2382660

95173

2287487

1000000.0

7. Accrued Liabilities Accrued liabilities consist of the following: Schedule of Accrued Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20201231_zhFx0gNulMQj" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20191231_zFCPhFI0AZJ1" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_40B_eus-gaap--EmployeeRelatedLiabilitiesCurrentAndNoncurrent_iI_pp0p0_maALCANzNGc_zEVxAKX76e92" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Accrued salaries, bonus, and benefits</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">2,044,826</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">1,421,150</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_400_ecustom--AccruedLicensesAndMaintenanceFeesCurrentAndNoncurrent_iI_pp0p0_maALCANzNGc_zn4ScNE8BpR8" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Accrued licenses and maintenance fees</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">483,879</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">483,879</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--ProductWarrantyAccrual_iI_pp0p0_maALCANzNGc_zGlD3VCeu1pe" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Accrued warranties</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">157,615</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">141,697</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--AccruedIncomeTaxes_iI_pp0p0_maALCANzNGc_zIfKK7ZAkWma" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Accrued taxes</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">172,744</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">206,232</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--AccruedProfessionalFeesCurrentAndNoncurrent_iI_pp0p0_maALCANzNGc_z4OXskCEnLmi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Accrued professional services</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">138,359</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">383,342</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--OtherAccruedLiabilitiesCurrentAndNoncurrent_iI_pp0p0_maALCANzNGc_zNFBVr8YobU7" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Other</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">343,043</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">340,321</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--AccruedLiabilitiesCurrentAndNoncurrent_iTI_pp0p0_mtALCANzNGc_zOaeQJl5lTel" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total accrued liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">3,340,466</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,976,621</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--OtherAccruedLiabilitiesNoncurrent_iNI_pp0p0_di_zO8VYPMHRTha" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Less: Long term accrued liabilities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(131,231</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(255,517</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40C_eus-gaap--AccruedLiabilitiesCurrent_iI_pp0p0" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total current accrued liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,209,235</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,721,104</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

Accrued liabilities consist of the following: Schedule of Accrued Liabilities <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_499_20201231_zhFx0gNulMQj" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20191231_zFCPhFI0AZJ1" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_40B_eus-gaap--EmployeeRelatedLiabilitiesCurrentAndNoncurrent_iI_pp0p0_maALCANzNGc_zEVxAKX76e92" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Accrued salaries, bonus, and benefits</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">2,044,826</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">1,421,150</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_400_ecustom--AccruedLicensesAndMaintenanceFeesCurrentAndNoncurrent_iI_pp0p0_maALCANzNGc_zn4ScNE8BpR8" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Accrued licenses and maintenance fees</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">483,879</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">483,879</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--ProductWarrantyAccrual_iI_pp0p0_maALCANzNGc_zGlD3VCeu1pe" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Accrued warranties</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">157,615</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">141,697</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--AccruedIncomeTaxes_iI_pp0p0_maALCANzNGc_zIfKK7ZAkWma" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Accrued taxes</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">172,744</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">206,232</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--AccruedProfessionalFeesCurrentAndNoncurrent_iI_pp0p0_maALCANzNGc_z4OXskCEnLmi" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Accrued professional services</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">138,359</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">383,342</td><td style="text-align: left"> </td></tr> <tr id="xdx_40F_eus-gaap--OtherAccruedLiabilitiesCurrentAndNoncurrent_iI_pp0p0_maALCANzNGc_zNFBVr8YobU7" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Other</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">343,043</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">340,321</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--AccruedLiabilitiesCurrentAndNoncurrent_iTI_pp0p0_mtALCANzNGc_zOaeQJl5lTel" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Total accrued liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">3,340,466</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,976,621</td><td style="text-align: left"> </td></tr> <tr id="xdx_406_eus-gaap--OtherAccruedLiabilitiesNoncurrent_iNI_pp0p0_di_zO8VYPMHRTha" style="vertical-align: bottom; background-color: White"> <td style="text-align: justify; padding-bottom: 1.5pt">Less: Long term accrued liabilities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(131,231</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(255,517</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40C_eus-gaap--AccruedLiabilitiesCurrent_iI_pp0p0" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total current accrued liabilities</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">3,209,235</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">2,721,104</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

2044826

1421150

483879 483879

157615

141697

172744

206232

138359

383342

343043

340321

3340466

2976621

131231

255517

3209235

2721104

8. Debt and Credit Facilities The Company had a working capital line of credit with its primary lender, Silicon Valley Bank that matured on <span id="xdx_90E_eus-gaap--LineOfCreditFacilityExpirationDate1_dd_c20200101__20201231__us-gaap--CreditFacilityAxis__us-gaap--RevolvingCreditFacilityMember__us-gaap--IncomeTaxAuthorityAxis__custom--PrimaryLenderMember_zpU1xiEEyV4l">June 30, 2020. The Coronavirus Aid, Relief, and Economic Security Act (“CARES Act”) was enacted on March 27, 2020 in the United States. Among the provisions contained in the CARES Act is the creation of the Paycheck Protection Program that provides for Small Business Administration (“SBA”) Section 7(a) loans for qualified small businesses. The loan can be forgiven as long as the funds are used for payroll related expenses as well as rent and utilities paid during the twenty four week period from the date of the loan and as long as certain headcount and wage/salary levels are maintained. On April 10, 2020, the Company was informed by its lender, Midwest BankCentre (the “Bank”), that the Bank received approval from the SBA to fund the Company’s request for a loan under the SBA’s Paycheck Protection Program (“PPP Loan”). Per the terms of the PPP Loan, the Company received total proceeds of $2,158,310 from the Bank on April 20, 2020. In accordance with the loan forgiveness requirements of the CARES Act, the Company used the full proceeds from the PPP Loan primarily for payroll costs, rent and utilities. The Company anticipates that the loan will be substantially forgiven. To the extent it is not forgiven, the Company would be required to repay that portion beginning in August 2021 with a final installment in April 2022. Interest would be assessed on the amount of the loan not forgiven at a rate of 1% per annum beginning on the date of the loan, April 20, 2020. In accordance with generally accepted accounting principles for fair value measurement, the Company’s debt was measured at fair value (Level 2) as of December 31, 2020 which approximated the carrying value of the debt.

2020-06-30

2158310

In accordance with the loan forgiveness requirements of the CARES Act, the Company used the full proceeds from the PPP Loan primarily for payroll costs, rent and utilities.

0.01

9. Convertible Preferred Stock and Stockholders’ Equity The holders of common stock are entitled one vote for each share held and to receive dividends whenever funds are legally available and when declared by the Board of Directors subject to the prior rights of holders of all classes of stock having priority rights as dividends and the conditions of the Revolving Credit Agreement. No dividends have been declared or paid as of December 31, 2020. 2020 Equity Financing On May 25, 2020, the Company entered into a Securities Purchase Agreement with certain accredited investors, whereby it, in a direct registered offering, agreed to issue and sell to the investors an aggregate of <span id="xdx_90A_eus-gaap--SaleOfStockNumberOfSharesIssuedInTransaction_pii_c20200524__20200525__us-gaap--SubsidiarySaleOfStockAxis__custom--DirectRegisteredOfferingMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_znsbaUC5TpL7">3,658,537 shares of the Company’s common stock, $<span id="xdx_901_eus-gaap--CommonStockParOrStatedValuePerShare_iI_pii_c20200525__us-gaap--SubsidiarySaleOfStockAxis__custom--DirectRegisteredOfferingMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_z3pxZ3E0zxNk">0.001 par value per share, at a price of $<span id="xdx_90A_eus-gaap--SaleOfStockPricePerShare_iI_pii_c20200525__us-gaap--SubsidiarySaleOfStockAxis__custom--DirectRegisteredOfferingMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_ztkfZUDOpyL7">4.10 per share. The Company received net proceeds of approximately $15.0 million, after offering expenses. 2019 Equity Financing and Series B Convertible Preferred Stock On August 7, 2019, the Company entered into a Securities Purchase Agreement with certain institutional and other accredited investors, whereby it, in a private placement, agreed to issue and sell to the investors (i) an aggregate of <span id="xdx_90A_eus-gaap--SaleOfStockNumberOfSharesIssuedInTransaction_pii_c20190806__20190807__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zKTbKgXppZ09">6,585,000 shares of the Company’s common stock, $<span id="xdx_905_eus-gaap--CommonStockParOrStatedValuePerShare_iI_pii_c20190807__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zvjLAaCzZ211">0.001 par value per share, at a price of $<span id="xdx_90B_eus-gaap--SaleOfStockPricePerShare_iI_pii_c20190807__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember_zLn9MnIPihCl">2.05 per share (ii) and <span id="xdx_907_eus-gaap--SaleOfStockNumberOfSharesIssuedInTransaction_pii_c20190806__20190807__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember__us-gaap--StatementEquityComponentsAxis__custom--SeriesBConvertiblePreferredStockMember_z1jXkOpG8oDk">5,610,121 shares of the Company’s Series B Convertible Preferred Stock, $<span id="xdx_908_eus-gaap--PreferredStockParOrStatedValuePerShare_iI_pii_c20190807__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember__us-gaap--StatementEquityComponentsAxis__custom--SeriesBConvertiblePreferredStockMember_zgKxRwXBw2Oa">0.001 par value per share (the “Series B Preferred Stock”), which are convertible into shares of the Company’s common stock, at a price of $<span id="xdx_908_ecustom--ConvertibleSecuritiesConversionPricePerShare_c20190807__us-gaap--SubsidiarySaleOfStockAxis__us-gaap--PrivatePlacementMember__us-gaap--StatementEquityComponentsAxis__custom--SeriesBConvertiblePreferredStockMember_pii">2.05 per share. The Series B Preferred Stock, which is a common stock equivalent but non-voting and with a blocker on conversion if the holder would exceed a specified threshold of voting security ownership, is convertible into common stock on a one-for-one basis, subject to adjustment for events such as stock splits, combinations and the like as provided in the Purchase Agreement. The Series B Preferred Stock is reported in the stockholders’ equity section of the balance sheet. The Company received net proceeds of approximately $23.1 million, after offering expenses. Series A Convertible Preferred Stock and Warrants In September 2016, the Company issued (i) 24,000 shares of Series A Convertible Preferred Stock, par value $0.001 per share, with a stated value of $1,000 per share (the “Series A Preferred Stock”), which are convertible into shares of the Company’s common stock at an initial conversion rate of $0.65 per share, subject to adjustment for events such as stock splits, combinations and the like as provided in the certificate of designations covering such Series A Preferred Stock, and (ii) warrants to purchase an aggregate of 36,923,078 shares of common stock. The shares of Series A Preferred Stock are entitled to vote on an as-converted basis with the common stock, subject to specified beneficial ownership issuance limitations. The Series A Preferred Stock bear dividends at a rate of six percent (6%) per annum, which are cumulative and accrue daily from the date of issuance on the $1,000 stated value. Such dividends will not be paid in cash except in connection with any liquidation, dissolution or winding up of the Company or any redemption of the Series A Preferred Stock. Each holder of convertible preferred shares has the right to require us to redeem such holder’s shares of Series A Preferred Stock upon the occurrence of specified events, which include certain business combinations, the sale of all or substantially all of the Company’s assets, or the sale of more than <span id="xdx_903_ecustom--PreferredStockRedemptionTriggeringEventPercentOfCommonStockSoldThreshold_pii_uPercent_c20160901__20160930__us-gaap--StatementClassOfStockAxis__custom--SeriesAConvertiblePreferredStockMember_z2NkBl2dKiEh">50% of the outstanding shares of the Company’s common stock. In addition, the Company has the right to redeem the Series A Preferred Stock in the event of a defined change of control. The Series A Preferred Stock ranks senior to our common stock as to distributions and payments upon the liquidation, dissolution, and winding up of the Company. Since the Series A Preferred Stock are subject to conditions for redemption that are outside the Company’s control, the Series A Preferred Stock are presently reported in the mezzanine section of the balance sheet. The warrants issued in conjunction with the Series A Preferred Stock (the “SPA Warrants”) have an exercise price of $0.70 per share subject to adjustments for events such as stock splits, combinations, and the like as provided under the terms of the warrants. The warrants are exercisable through September 29, 2021, subject to specified beneficial ownership issuance limitations. The Company has reserved shares of common stock for conversion of convertible preferred stock, exercise of warrants, and the issuance of options granted under the Company’s stock option plan and its stock purchase plan as follows: Summary of Reserved Shares of Common Stock <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">December 31,</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">December 31,</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Warrants</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_pii" style="width: 16%; text-align: right" title="Reserved shares of common stock">15,385</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98F_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_pii" style="width: 16%; text-align: right" title="Reserved shares of common stock">46,155</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Series A Convertible Preferred Stock</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--StatementClassOfStockAxis__custom--SeriesAConvertiblePreferredStockMember_pii" style="text-align: right" title="Reserved shares of common stock">45,278,096</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--StatementClassOfStockAxis__custom--SeriesAConvertiblePreferredStockMember_pii" style="text-align: right" title="Reserved shares of common stock">46,398,904</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Series B Convertible Preferred Stock</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--StatementClassOfStockAxis__custom--SeriesBConvertiblePreferredStockMember_pii" style="text-align: right" title="Reserved shares of common stock">5,610,121</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--StatementClassOfStockAxis__custom--SeriesBConvertiblePreferredStockMember_pii" style="text-align: right" title="Reserved shares of common stock">5,610,121</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Stock award plans</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--PlanNameAxis__custom--StockAwardPlansMember_pii" style="text-align: right" title="Reserved shares of common stock">2,054,941</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--PlanNameAxis__custom--StockAwardPlansMember_pii" style="text-align: right" title="Reserved shares of common stock">3,216,028</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Employee Stock Purchase Plan</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--PlanNameAxis__custom--EmployeeStockPurchasePlanMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Reserved shares of common stock">229,136</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_983_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--PlanNameAxis__custom--EmployeeStockPurchasePlanMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Reserved shares of common stock">261,603</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_986_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_iI_pii_c20201231_zvLdqdOFirPb" style="border-bottom: Black 2.5pt double; text-align: right" title="Reserved shares of common stock">53,187,679</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98C_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231_pii" style="border-bottom: Black 2.5pt double; text-align: right" title="Reserved shares of common stock">55,532,811</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Stock Award Plans The Company has various stock plans that permit the Company to provide incentives to employees and directors of the Company in the form of equity compensation. In July 2012, the Board of Directors adopted a stock incentive plan (the 2012 Stock Incentive Plan) which was subsequently approved by the Company’s stockholders. This plan replaced the 2002 Stock Incentive Plan which expired on March 25, 2012. The 2012 Stock Incentive Plan allows for the grant of incentive stock options, non-qualified stock options, stock appreciation rights, restricted shares and restricted share units to employees, directors, and consultants. Options granted under the 2012 Stock Incentive Plan expire no later than <span id="xdx_90C_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zAQiqPT0poac" title="::XDX::10">ten years from the date of grant. The exercise price of each incentive stock option shall not be less than <span id="xdx_909_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_pii_uPercent_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zqoxDyOUsO65">100% of the fair value of the stock subject to the option on the date the option is granted. The vesting provisions of individual options may vary, but incentive stock options generally vest <span id="xdx_90E_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_pii_uPercent_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zOzh60X9B838">25% on the first anniversary of each grant and 1/48 per month over the next <span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember_zWfBc98Pt55l" title="::XDX::3">three years. Stock appreciation rights are rights to acquire a calculated number of shares of the Company’s common stock upon exercise of the rights. The number of shares to be issued is calculated as the difference between the exercise price of the right and the aggregate market value of the underlying shares on the exercise date divided by the market value as of the exercise date. Stock appreciation rights granted under the 2012 Stock Incentive Plan generally vest <span id="xdx_907_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_pii_uPercent_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--StockAppreciationRightsSARSMember_zJsePfeV1Dha">25% on the first anniversary of such grant and 1/48 per month over the next <span id="xdx_90C_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--StockAppreciationRightsSARSMember_zJYrtb5RWJt7" title="::XDX::3">three years and expire no later than <span id="xdx_901_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--StockAppreciationRightsSARSMember_zTJ3tn4FDmt2" title="::XDX::10">ten years from the date of grant. The Company generally issues new shares upon the exercise of stock options and stock appreciation rights. Restricted stock unit grants are time-based and generally vest over a period of <span id="xdx_90A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zznIm7YP0Xm5" title="::XDX::4">four years. Options granted to non-employee directors expire no later than <span id="xdx_90E_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember__srt--TitleOfIndividualAxis__custom--NonEmployeeDirectorsMember_zI4700DmbGa4" title="::XDX::10">ten years from the date of grant. The exercise price of options to non-employee directors shall not be less than <span id="xdx_90A_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_pii_uPercent_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--EmployeeStockOptionMember__srt--TitleOfIndividualAxis__custom--NonEmployeeDirectorsMember_zKND6PceqCvh">100% of the fair value of the stock subject to the option on the date the option is granted. Annual grants to directors generally vest between <span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__srt--TitleOfIndividualAxis__srt--DirectorMember__srt--RangeAxis__srt--MinimumMember_zfdgvpVAgLFj" title="::XDX::1">one and <span id="xdx_902_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_dtYxL_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__srt--TitleOfIndividualAxis__srt--DirectorMember__srt--RangeAxis__srt--MaximumMember_zBt8aaCCIo1g" title="::XDX::5">five years following grant. At December 31, 2020, the Company had 2,054,941 remaining shares of the Company’s common stock to provide for current and future grants under its various equity plans. <p id="xdx_89D_eus-gaap--ScheduleOfShareBasedCompensationStockOptionsAndStockAppreciationRightsAwardActivityTableTextBlock_zyAEqmJSBzE4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">A summary of the option and stock appreciation rights activity for the year ended December 31, 2020 is as follows: Summary of Option and Stock Appreciation Rights Activity <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: center; vertical-align: bottom"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center; font-weight: bold; vertical-align: bottom">Number of Options/SARs</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td> <td colspan="4" style="border-bottom: Black 1.5pt solid; text-align: center; font-weight: bold; vertical-align: bottom">Range of Exercise Price</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center; font-weight: bold; vertical-align: bottom">Weighted Average Exercise Price per Share</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 45%">Outstanding, December 31, 2019</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pii_c20200101__20201231_zijKv9UfRmj" style="width: 10%; text-align: right" title="Number of Options/SARs, Outstanding, Beginning Balance">1,857,599</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td> <td id="xdx_98E_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iS_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_z0mfrxCPrbRa" style="text-align: right; width: 20%" title="Range of Exercise Price, Begining Balance">0.74</td> <td style="text-align: right; width: 2%">-</td><td id="xdx_981_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iS_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_zo5gv3SD1UPa" style="width: 5%; text-align: right" title="Range of Exercise Price, Begining Balance">$36.20</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pii_c20200101__20201231_zHtf2DjIywdh" style="width: 10%; text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance">2.22</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_c20200101__20201231_zxFu4CwxYu2a" style="text-align: right" title="Number of Options/SARs, Granted">917,250</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td> <td id="xdx_984_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceGranted_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_zPm6h8rGUNEc" style="text-align: right" title="Range of Exercise Price, Granted">3.22</td> <td style="text-align: right">-</td><td id="xdx_98A_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceGranted_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_z7s9sBeu0xgg" style="text-align: right" title="Range of Exercise Price, Granted">$5.13</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance"><span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231_zJn98B7i6Ahe" style="font-family: Times New Roman, Times, Serif">4.49</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pii_di_c20200101__20201231_zcmmDXlFsdKd" style="text-align: right" title="Number of Options/SARs, Exercised">(133,852</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td> <td id="xdx_98B_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceExercised_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_ztEl2JRfXwj2" style="text-align: right" title="Range of Exercise Price, Exercised">0.74</td> <td style="text-align: right">-</td><td id="xdx_985_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceExercised_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_zavdfqVEdVu9" style="text-align: right" title="Range of Exercise Price, Exercised">$2.15</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231_z5y0OgKX4v2f" style="font-family: Times New Roman, Times, Serif">1.27</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Forfeited</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_iN_pii_di_c20200101__20201231_zPrH96Hkixb7" style="text-align: right" title="Number of Options/SARs, Forfeited">(184,018</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td> <td id="xdx_98D_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceForfeited_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_zb1ukZNjB0z7" style="text-align: right" title="Range of Exercise Price, Forfeited">0.74</td> <td style="text-align: right">-</td><td id="xdx_988_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceForfeited_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_z3hmFtfQw71b" style="text-align: right" title="Range of Exercise Price, Forfeited">$36.20</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance"><span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231_zy75jK1vwQs8" style="font-family: Times New Roman, Times, Serif">5.17</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Outstanding, December 31, 2020</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pii_c20200101__20201231_zt3sky7Oirca" style="text-align: right" title="Number of Options/SARs, Outstanding, Beginning Balance">2,456,979</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td> <td id="xdx_987_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iE_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_zE05R4b4mMic" style="text-align: right" title="Range of Exercise Price, Ending Balance">0.74</td> <td style="text-align: right">-</td><td id="xdx_986_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iE_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_zY3vqkKMQT8b" style="text-align: right" title="Range of Exercise Price, Ending Balance">$35.20</td><td> </td> <td style="text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pii_c20200101__20201231_zcUFi8H5MXX1" style="text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance">2.90</td><td style="text-align: left"> </td></tr> </table> As of December 31, 2020, the weighted average remaining contractual life of the options and stock appreciation rights outstanding was <span id="xdx_906_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_zRiCH7YkUMEc">7.97 years. Of the <span id="xdx_90E_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_c20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">2,456,979 options and stock appreciation rights that were outstanding as of December 31, 2020, <span id="xdx_905_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableNumber_c20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">901,549 were vested and exercisable with a weighted average exercise price of $<span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice_c20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">2.21 per share and a weighted average remaining term of <span id="xdx_909_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageRemainingContractualTerm1_dtY_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_zMbWr0ryKDxe">6.81 years. <p id="xdx_895_eus-gaap--ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock_ztf1jWfFDUyj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">A summary of the options and stock appreciation rights outstanding by range of exercise price is as follows: Summary of Option and Stock Appreciation Rights Outstanding by Range of Exercise Price <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="18" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Average</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted Average</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted Average</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Number of Options </td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Exercise Price Per</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1.5pt solid; font-weight: bold">Range of Exercise Prices</td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Options Outstanding</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Remaining Life</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Exercise Price</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Currently Exercisable</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Vested Share</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 35%">$<span id="xdx_905_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii">0.00 - $<span id="xdx_906_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii">1.00</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii" style="width: 9%; text-align: right" title="Options Outstanding">568,877</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right"><span id="xdx_902_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_z00Li8DaGbz7" style="font-family: Times New Roman, Times, Serif">7.17</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right"><span id="xdx_908_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii" style="font-family: Times New Roman, Times, Serif">0.74</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii" style="width: 9%; text-align: right" title="Number of Options Currently Exercisable">373,065</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii" style="width: 9%; text-align: right" title="Weighted Average Exercise Price per Vested Share">0.74</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>$<span id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii">1.01 - $<span id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii">2.00</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii" style="text-align: right" title="Options Outstanding">64,333</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_zJZd4cOBYq5j" style="font-family: Times New Roman, Times, Serif">4.74</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_90E_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii" style="font-family: Times New Roman, Times, Serif">1.71</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_900_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii" style="font-family: Times New Roman, Times, Serif">57,642</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_90F_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii" style="font-family: Times New Roman, Times, Serif">1.79</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>$<span id="xdx_904_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii">2.01- $<span id="xdx_903_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii">4.00</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90C_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii" style="font-family: Times New Roman, Times, Serif">883,374</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_901_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_zePRvXLJRCfj" style="font-family: Times New Roman, Times, Serif">7.93</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_900_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii" style="font-family: Times New Roman, Times, Serif">2.11</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii" style="text-align: right" title="Number of Options Currently Exercisable">398,197</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_900_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii" style="font-family: Times New Roman, Times, Serif">2.06</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>$<span id="xdx_906_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii">4.01 - $<span id="xdx_908_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii">10.00</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_903_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii" style="font-family: Times New Roman, Times, Serif">923,500</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_905_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_zSxIjqrFPpde" style="font-family: Times New Roman, Times, Serif">8.87</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_907_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii" style="font-family: Times New Roman, Times, Serif">4.50</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_908_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii" style="font-family: Times New Roman, Times, Serif">55,750</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_90B_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii" style="font-family: Times New Roman, Times, Serif">4.09</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>$<span id="xdx_90B_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii">10.01 - $<span id="xdx_908_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii">20.00</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii" style="text-align: right" title="Options Outstanding">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtxL_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_zH8GStWtmoNg" style="text-align: right" title="Weighted Average Remaining Life::XDX::P0Y">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_980_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii" style="text-align: right" title="Weighted Average Exercise Price">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii" style="text-align: right" title="Number of Options Currently Exercisable">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii" style="text-align: right" title="Weighted Average Exercise Price per Vested Share">-</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1.5pt">$<span id="xdx_904_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii">30.01 - $<span id="xdx_90B_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii">40.00</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii" style="font-family: Times New Roman, Times, Serif">16,895</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_90D_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_zUiwTXB34vY8" style="font-family: Times New Roman, Times, Serif">0.27</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_908_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii" style="font-family: Times New Roman, Times, Serif">33.65</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_909_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii" style="font-family: Times New Roman, Times, Serif">16,895</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_909_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii" style="font-family: Times New Roman, Times, Serif">33.65</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_908_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_pii" style="font-family: Times New Roman, Times, Serif">2,456,979</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90D_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_zD810VaeO84g" style="font-family: Times New Roman, Times, Serif">7.97</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_900_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_pii" style="font-family: Times New Roman, Times, Serif">2.90</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_pii" style="font-family: Times New Roman, Times, Serif">901,549</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_pii" style="font-family: Times New Roman, Times, Serif">2.21</td><td style="text-align: left"> </td></tr> </table> The intrinsic value of options and stock appreciation rights is calculated as the difference between the exercise price of the underlying awards and the quoted price of the Company’s common stock for the options and stock appreciation rights that were in-the-money at December 31, 2020. The intrinsic value of the options and stock appreciation rights outstanding at December 31, 2020 was approximately $<span id="xdx_90B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_pn5n6_c20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_zXOWNHgW6Xt5">5.9 million based on a closing share price of $<span id="xdx_909_eus-gaap--SharePrice_c20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">5.09 on December 31, 2020. There were <span id="xdx_900_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">884,654 fully vested options or stock appreciation rights outstanding at December 31, 2020 with an exercise price less than the closing stock price on December 31, 2020. During the year ended December 31, 2020 the aggregate intrinsic value of options and stock appreciation rights exercised under the Company’s stock option plans was $<span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pn5n6_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_zAZhUEmBR3a7">0.4 million. The intrinsic value of the options and stock appreciation rights outstanding at December 31, 2019 was approximately $<span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_iI_pn5n6_c20191231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_zFWsLRr2gECd">6.6 million based on a closing share price of $<span id="xdx_901_eus-gaap--SharePrice_c20191231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">5.29 on December 31, 2019. There were <span id="xdx_90F_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_c20190101__20191231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">494,137 fully vested options or stock appreciation rights outstanding at December 31, 2019 with an exercise price less than the closing stock price on December 31, 2019. During the year ended December 31, 2019 the aggregate intrinsic value of options and stock appreciation rights exercised under the Company’s stock option plans was $<span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_pn5n6_c20190101__20191231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_zfhxoQzEiSH6">0.4 million. The weighted average grant date fair value of options and stock appreciation rights granted during the year ended December 31, 2020 and 2019 was $<span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">4.49 per share and $<span id="xdx_907_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c20190101__20191231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__custom--StockOptionsAndStockAppreciationRightsSARSMember_pii">2.12 per share, respectively. <p id="xdx_897_eus-gaap--ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_z5yAZLhYztxe" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">A summary of the restricted stock unit activity for the year ended December 31, 2020 is as follows: Summary of Restricted Stock Unit Activity <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Number of Restricted Stock Units</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Weighted Average Grant Date Fair Value per Unit</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Outstanding, December 31, 2019</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iS_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zGehPr8DAv0d" style="width: 16%; text-align: right" title="Number of Restricted Stock Units, Outstanding, Beginning">840,712</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iS_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zZaUkb3C6Rdc" style="width: 16%; text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Outstanding, Beginning">1.28</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Number of Restricted Stock Units, Granted">420,000</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Granted">4.82</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Vested</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_iN_pii_di_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zf9AbEtm3oxf" style="text-align: right" title="Number of Restricted Stock Units, Vested">(147,989</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Vested">2.44</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1.5pt">Forfeited</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_iN_pii_di_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zKikh3TAT5A7" style="border-bottom: Black 1.5pt solid; text-align: right" title="Number of Restricted Stock Units, Forfeited">(250</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Forfeited">0.78</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Outstanding, December 31, 2020</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iE_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_z2FPw3UAqqCl" style="border-bottom: Black 2.5pt double; text-align: right" title="Number of Restricted Stock Units, Outstanding, Ending">1,112,473</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iE_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zFyeqJS8CjG6" style="border-bottom: Black 2.5pt double; text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Outstanding, Ending">2.46</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> The intrinsic value of restricted stock units outstanding at December 31, 2020 was $<span id="xdx_903_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding_iI_pn5n6_c20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zq5hEAlbuNaf">5.7 million based on a closing share price of $5.09 as of December 31, 2020. During the year ended December 31, 2020, the aggregate intrinsic value of restricted stock units vested was $<span id="xdx_906_eus-gaap--SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueVested_pn5n6_c20200101__20201231__us-gaap--PlanNameAxis__custom--TwoThousandAndTwelveStockIncentivePlanMember__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zdlAAYpsH9jb">0.6 million determined at the date of vesting. As of December 31, 2020, the total compensation cost related to options, stock appreciation rights and non-vested stock granted to employees under the Company’s stock award plans but not yet recognized was approximately $3.2 million. This cost will be amortized over a period of up to four years over the underlying estimated service periods and will be adjusted for subsequent changes in actual forfeitures and anticipated vesting periods. 2009 Employee Stock Purchase Plan In 2009, the Company adopted its 2009 Employee Stock Purchase Plan (“ESPP”). In June 2014 and again in May 2019, the Company’s stockholders approved an amendment of the ESPP to increase the number of shares authorized for issuance under the ESPP by <span id="xdx_909_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_c20140601__20140630__us-gaap--PlanNameAxis__custom--TwoThousandNineEmployeeStockPurchasePlanMember_pii"><span id="xdx_90D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_pii_c20190501__20190531__us-gaap--PlanNameAxis__custom--TwoThousandNineEmployeeStockPurchasePlanMember_z1NU7CX3NQWe">250,000 shares. Eligible employees have the opportunity to participate in a new purchase period every 3 months. Under the terms of the plan, employees can purchase up to 15% of their compensation of the Company’s common stock, subject to an annual maximum of $25,000, at <span id="xdx_903_ecustom--MaximumFairValuePercentageOfSharesSubjectToRepurchaseObligation_iI_pii_uPercent_c20201231__us-gaap--PlanNameAxis__custom--TwoThousandNineEmployeeStockPurchasePlanMember_zom3D4tfeOPj">95% of the fair market value of the stock at the end of the purchase period, subject to certain plan limitations. As of December 31, 2020, there were 229,136 remaining shares available for issuance under the Employee Stock Purchase Plan.

one

3658537

0.001

4.10

15000000.0

6585000

0.001

2.05

5610121

0.001

2.05

23100000

24000

0.001

1000

0.65

36923078

0.06

0.50

0.70

2021-09-29

The Company has reserved shares of common stock for conversion of convertible preferred stock, exercise of warrants, and the issuance of options granted under the Company’s stock option plan and its stock purchase plan as follows: Summary of Reserved Shares of Common Stock <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">December 31,</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">December 31,</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Warrants</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_pii" style="width: 16%; text-align: right" title="Reserved shares of common stock">15,385</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98F_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--StatementEquityComponentsAxis__us-gaap--WarrantMember_pii" style="width: 16%; text-align: right" title="Reserved shares of common stock">46,155</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Series A Convertible Preferred Stock</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--StatementClassOfStockAxis__custom--SeriesAConvertiblePreferredStockMember_pii" style="text-align: right" title="Reserved shares of common stock">45,278,096</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--StatementClassOfStockAxis__custom--SeriesAConvertiblePreferredStockMember_pii" style="text-align: right" title="Reserved shares of common stock">46,398,904</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Series B Convertible Preferred Stock</td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--StatementClassOfStockAxis__custom--SeriesBConvertiblePreferredStockMember_pii" style="text-align: right" title="Reserved shares of common stock">5,610,121</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--StatementClassOfStockAxis__custom--SeriesBConvertiblePreferredStockMember_pii" style="text-align: right" title="Reserved shares of common stock">5,610,121</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Stock award plans</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--PlanNameAxis__custom--StockAwardPlansMember_pii" style="text-align: right" title="Reserved shares of common stock">2,054,941</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--PlanNameAxis__custom--StockAwardPlansMember_pii" style="text-align: right" title="Reserved shares of common stock">3,216,028</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Employee Stock Purchase Plan</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20201231__us-gaap--PlanNameAxis__custom--EmployeeStockPurchasePlanMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Reserved shares of common stock">229,136</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_983_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231__us-gaap--PlanNameAxis__custom--EmployeeStockPurchasePlanMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Reserved shares of common stock">261,603</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_986_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_iI_pii_c20201231_zvLdqdOFirPb" style="border-bottom: Black 2.5pt double; text-align: right" title="Reserved shares of common stock">53,187,679</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_98C_eus-gaap--CommonStockCapitalSharesReservedForFutureIssuance_c20191231_pii" style="border-bottom: Black 2.5pt double; text-align: right" title="Reserved shares of common stock">55,532,811</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

15385

46155

45278096

46398904

5610121

2054941

3216028

229136

261603

53187679

55532811

2012-03-25

0.25

2054941

<p id="xdx_89D_eus-gaap--ScheduleOfShareBasedCompensationStockOptionsAndStockAppreciationRightsAwardActivityTableTextBlock_zyAEqmJSBzE4" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">A summary of the option and stock appreciation rights activity for the year ended December 31, 2020 is as follows: Summary of Option and Stock Appreciation Rights Activity <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt; text-align: center; vertical-align: bottom"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center; font-weight: bold; vertical-align: bottom">Number of Options/SARs</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td> <td colspan="4" style="border-bottom: Black 1.5pt solid; text-align: center; font-weight: bold; vertical-align: bottom">Range of Exercise Price</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; text-align: center; font-weight: bold; vertical-align: bottom">Weighted Average Exercise Price per Share</td><td style="padding-bottom: 1.5pt; text-align: center; font-weight: bold; vertical-align: bottom"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 45%">Outstanding, December 31, 2019</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iS_pii_c20200101__20201231_zijKv9UfRmj" style="width: 10%; text-align: right" title="Number of Options/SARs, Outstanding, Beginning Balance">1,857,599</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td> <td id="xdx_98E_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iS_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_z0mfrxCPrbRa" style="text-align: right; width: 20%" title="Range of Exercise Price, Begining Balance">0.74</td> <td style="text-align: right; width: 2%">-</td><td id="xdx_981_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iS_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_zo5gv3SD1UPa" style="width: 5%; text-align: right" title="Range of Exercise Price, Begining Balance">$36.20</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iS_pii_c20200101__20201231_zHtf2DjIywdh" style="width: 10%; text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance">2.22</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_pii_c20200101__20201231_zxFu4CwxYu2a" style="text-align: right" title="Number of Options/SARs, Granted">917,250</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td> <td id="xdx_984_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceGranted_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_zPm6h8rGUNEc" style="text-align: right" title="Range of Exercise Price, Granted">3.22</td> <td style="text-align: right">-</td><td id="xdx_98A_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceGranted_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_z7s9sBeu0xgg" style="text-align: right" title="Range of Exercise Price, Granted">$5.13</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance"><span id="xdx_903_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231_zJn98B7i6Ahe" style="font-family: Times New Roman, Times, Serif">4.49</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Exercised</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--StockIssuedDuringPeriodSharesStockOptionsExercised_iN_pii_di_c20200101__20201231_zcmmDXlFsdKd" style="text-align: right" title="Number of Options/SARs, Exercised">(133,852</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td> <td id="xdx_98B_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceExercised_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_ztEl2JRfXwj2" style="text-align: right" title="Range of Exercise Price, Exercised">0.74</td> <td style="text-align: right">-</td><td id="xdx_985_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceExercised_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_zavdfqVEdVu9" style="text-align: right" title="Range of Exercise Price, Exercised">$2.15</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance"><span id="xdx_901_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231_z5y0OgKX4v2f" style="font-family: Times New Roman, Times, Serif">1.27</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Forfeited</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98A_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_iN_pii_di_c20200101__20201231_zPrH96Hkixb7" style="text-align: right" title="Number of Options/SARs, Forfeited">(184,018</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td> <td id="xdx_98D_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceForfeited_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_zb1ukZNjB0z7" style="text-align: right" title="Range of Exercise Price, Forfeited">0.74</td> <td style="text-align: right">-</td><td id="xdx_988_ecustom--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceForfeited_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_z3hmFtfQw71b" style="text-align: right" title="Range of Exercise Price, Forfeited">$36.20</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance"><span id="xdx_900_eus-gaap--ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_pii_c20200101__20201231_zy75jK1vwQs8" style="font-family: Times New Roman, Times, Serif">5.17</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Outstanding, December 31, 2020</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_iE_pii_c20200101__20201231_zt3sky7Oirca" style="text-align: right" title="Number of Options/SARs, Outstanding, Beginning Balance">2,456,979</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td> <td id="xdx_987_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iE_c20200101__20201231__srt--RangeAxis__srt--MinimumMember_zE05R4b4mMic" style="text-align: right" title="Range of Exercise Price, Ending Balance">0.74</td> <td style="text-align: right">-</td><td id="xdx_986_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_iE_c20200101__20201231__srt--RangeAxis__srt--MaximumMember_zY3vqkKMQT8b" style="text-align: right" title="Range of Exercise Price, Ending Balance">$35.20</td><td> </td> <td style="text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_iE_pii_c20200101__20201231_zcUFi8H5MXX1" style="text-align: right" title="Weighted Average Exercise Price per Share, Outstanding, Beginning Balance">2.90</td><td style="text-align: left"> </td></tr> </table>

1857599

0.74

36.20

2.22

917250

3.22 5.13

4.49

133852

0.74 2.15

1.27

184018

0.74 36.20

5.17

2456979

0.74

35.20

2.90

P7Y11M19D

2456979

901549

2.21

P6Y9M21D

<p id="xdx_895_eus-gaap--ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock_ztf1jWfFDUyj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">A summary of the options and stock appreciation rights outstanding by range of exercise price is as follows: Summary of Option and Stock Appreciation Rights Outstanding by Range of Exercise Price <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="18" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Average</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center"/><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted Average</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Weighted Average</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Number of Options </td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Exercise Price Per</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="border-bottom: Black 1.5pt solid; font-weight: bold">Range of Exercise Prices</td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Options Outstanding</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Remaining Life</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Exercise Price</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Currently Exercisable</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Vested Share</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 35%">$<span id="xdx_905_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii">0.00 - $<span id="xdx_906_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii">1.00</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_988_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii" style="width: 9%; text-align: right" title="Options Outstanding">568,877</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right"><span id="xdx_902_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_z00Li8DaGbz7" style="font-family: Times New Roman, Times, Serif">7.17</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right"><span id="xdx_908_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii" style="font-family: Times New Roman, Times, Serif">0.74</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii" style="width: 9%; text-align: right" title="Number of Options Currently Exercisable">373,065</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesOneMember_pii" style="width: 9%; text-align: right" title="Weighted Average Exercise Price per Vested Share">0.74</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>$<span id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii">1.01 - $<span id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii">2.00</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii" style="text-align: right" title="Options Outstanding">64,333</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_zJZd4cOBYq5j" style="font-family: Times New Roman, Times, Serif">4.74</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_90E_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii" style="font-family: Times New Roman, Times, Serif">1.71</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_900_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii" style="font-family: Times New Roman, Times, Serif">57,642</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_90F_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesTwoMember_pii" style="font-family: Times New Roman, Times, Serif">1.79</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>$<span id="xdx_904_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii">2.01- $<span id="xdx_903_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii">4.00</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90C_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii" style="font-family: Times New Roman, Times, Serif">883,374</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_901_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_zePRvXLJRCfj" style="font-family: Times New Roman, Times, Serif">7.93</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_900_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii" style="font-family: Times New Roman, Times, Serif">2.11</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii" style="text-align: right" title="Number of Options Currently Exercisable">398,197</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_900_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesThreeMember_pii" style="font-family: Times New Roman, Times, Serif">2.06</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>$<span id="xdx_906_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii">4.01 - $<span id="xdx_908_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii">10.00</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_903_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii" style="font-family: Times New Roman, Times, Serif">923,500</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_905_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_zSxIjqrFPpde" style="font-family: Times New Roman, Times, Serif">8.87</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_907_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii" style="font-family: Times New Roman, Times, Serif">4.50</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_908_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii" style="font-family: Times New Roman, Times, Serif">55,750</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_90B_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFourMember_pii" style="font-family: Times New Roman, Times, Serif">4.09</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>$<span id="xdx_90B_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii">10.01 - $<span id="xdx_908_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii">20.00</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii" style="text-align: right" title="Options Outstanding">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtxL_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_zH8GStWtmoNg" style="text-align: right" title="Weighted Average Remaining Life::XDX::P0Y">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_980_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii" style="text-align: right" title="Weighted Average Exercise Price">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii" style="text-align: right" title="Number of Options Currently Exercisable">-</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_98C_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesFiveMember_pii" style="text-align: right" title="Weighted Average Exercise Price per Vested Share">-</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1.5pt">$<span id="xdx_904_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii">30.01 - $<span id="xdx_90B_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii">40.00</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_90D_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii" style="font-family: Times New Roman, Times, Serif">16,895</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_90D_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_zUiwTXB34vY8" style="font-family: Times New Roman, Times, Serif">0.27</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_908_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii" style="font-family: Times New Roman, Times, Serif">33.65</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_909_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii" style="font-family: Times New Roman, Times, Serif">16,895</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right"><span id="xdx_909_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember__us-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis__custom--RangeOfExercisePricesSixMember_pii" style="font-family: Times New Roman, Times, Serif">33.65</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_908_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_pii" style="font-family: Times New Roman, Times, Serif">2,456,979</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90D_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_dtY_c20200101__20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_zD810VaeO84g" style="font-family: Times New Roman, Times, Serif">7.97</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_900_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageExercisePriceBeginningBalance1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_pii" style="font-family: Times New Roman, Times, Serif">2.90</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"><span id="xdx_90E_eus-gaap--ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_pii" style="font-family: Times New Roman, Times, Serif">901,549</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td style="text-align: right"><span id="xdx_903_eus-gaap--SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeExercisableOptionsWeightedAverageExercisePrice1_c20201231__us-gaap--AwardTypeAxis__custom--EmployeeStockOptionAndStockAppreciationRightsSARSMember_pii" style="font-family: Times New Roman, Times, Serif">2.21</td><td style="text-align: left"> </td></tr> </table>

0.00

1.00

568877

P7Y2M1D

0.74

373065

0.74

1.01

2.00

64333

P4Y8M26D

1.71

57642

1.79

2.01

4.00

883374

P7Y11M4D

2.11

398197

2.06

4.01

10.00

923500

P8Y10M13D

4.50

55750

4.09

10.01

20.00

30.01

40.00

16895

P0Y3M7D

33.65

16895

33.65

2456979

P7Y11M19D

2.90

901549

2.21

5900000

5.09

884654

400000

6600000

5.29

494137

400000

4.49

2.12

<p id="xdx_897_eus-gaap--ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_z5yAZLhYztxe" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">A summary of the restricted stock unit activity for the year ended December 31, 2020 is as follows: Summary of Restricted Stock Unit Activity <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Number of Restricted Stock Units</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Weighted Average Grant Date Fair Value per Unit</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Outstanding, December 31, 2019</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iS_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zGehPr8DAv0d" style="width: 16%; text-align: right" title="Number of Restricted Stock Units, Outstanding, Beginning">840,712</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_982_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iS_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zZaUkb3C6Rdc" style="width: 16%; text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Outstanding, Beginning">1.28</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td>Granted</td><td> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Number of Restricted Stock Units, Granted">420,000</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left">$</td><td id="xdx_981_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Granted">4.82</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Vested</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98B_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_iN_pii_di_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zf9AbEtm3oxf" style="text-align: right" title="Number of Restricted Stock Units, Vested">(147,989</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_98D_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Vested">2.44</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1.5pt">Forfeited</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_986_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_iN_pii_di_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zKikh3TAT5A7" style="border-bottom: Black 1.5pt solid; text-align: right" title="Number of Restricted Stock Units, Forfeited">(250</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td id="xdx_985_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Forfeited">0.78</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Outstanding, December 31, 2020</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_iE_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_z2FPw3UAqqCl" style="border-bottom: Black 2.5pt double; text-align: right" title="Number of Restricted Stock Units, Outstanding, Ending">1,112,473</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_984_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_iE_pii_c20200101__20201231__us-gaap--AwardTypeAxis__us-gaap--RestrictedStockUnitsRSUMember_zFyeqJS8CjG6" style="border-bottom: Black 2.5pt double; text-align: right" title="Weighted Average Grant Date Fair Value Per Unit, Outstanding, Ending">2.46</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

840712

1.28

420000

4.82

147989

2.44

250

0.78

1112473

2.46

5700000

5.09

600000

3200000

four years

250000

P3M 0.15 25000 0.95

229136

10. Fair Value Measurements The Company measures certain financial assets and liabilities at fair value on a recurring basis, including certain cash equivalents. Generally accepted accounting principles for fair value measurement established a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets and liabilities (“Level 1”) and the lowest priority to unobservable inputs (“Level 3”). The three levels of the fair value hierarchy are described below: <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; width: 100%; background-color: white; border-collapse: collapse"> <tr style="font: 10pt Times New Roman, Times, Serif"> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: top; width: 0.5in">Level 1:</td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: bottom; width: 0.1in"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: justify">Values are based on unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities.</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif"> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: top"> </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; vertical-align: bottom; text-align: justify"> </td></tr> <tr style="font: 10pt Times New Roman, Times, Serif"> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: top">Level 2:</td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: bottom">Values are based on quoted prices for similar instruments in active markets, quoted prices for identical or similar instruments in in markets that are not active, or other model-based valuation techniques for which all significant assumptions are observable in the market.</td></tr> <tr style="font: 10pt Times New Roman, Times, Serif"> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: top"> </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: bottom"> </td></tr> <tr style="font: 10pt Times New Roman, Times, Serif"> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: top">Level 3:</td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: bottom"> </td> <td style="font: 10pt Times New Roman, Times, Serif; text-align: justify; vertical-align: bottom">Values are generated from model-based techniques that use significant assumptions not observable in the market.</td></tr> </table> The following table sets forth the Company’s assets measured at fair value on a recurring basis by level within the fair value hierarchy. As required by the Fair Value Measurements and Disclosures topic of the Accounting Standards Codification, assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. Schedule of Assets Measured at Fair Value on a Recurring Basis by Level Within Fair Value Hierarchy <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="14" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fair Value Measurement Using</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Quoted Prices in Active Markets for Identical Instruments (Level 1)</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Significant Other Observable Inputs (Level 2)</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Significant Unobservable Inputs (Level 3)</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Assets at December 31, 2020</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 40%; text-align: left; padding-bottom: 1.5pt">Cash invested in Money Market Accounts</td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0" style="border-bottom: Black 1.5pt solid; width: 11%; text-align: right" title="Total assets at fair value">1,429,331</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"> </td><td id="xdx_986_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0" style="border-bottom: Black 1.5pt solid; width: 11%; text-align: right" title="Total assets at fair value">—</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0" style="border-bottom: Black 1.5pt solid; width: 11%; text-align: right" title="Total assets at fair value">1,429,331</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0" style="border-bottom: Black 1.5pt solid; width: 11%; text-align: right" title="Total assets at fair value">—</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total assets at fair value</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Total assets at fair value">1,429,331</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Total assets at fair value">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Total assets at fair value">1,429,331</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_981_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Total assets at fair value">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> As of December 31, 2020, the Company did not have any financial liabilities valued at fair value on a recurring basis. As of December 31, 2019, the Company did not have any financial assets or liabilities valued at fair value on a recurring basis. Level 1 The Company does not have any financial assets or liabilities classified as Level 1. Level 2 The Company’s financial assets consist of cash equivalents invested in money market funds in the amount of $<span id="xdx_90D_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0">1,429,331 at December 31, 2020. These assets are classified as Level 2 as described above and total interest income recorded for these investments was insignificant during the year ended December 31, 2020. Level 3 The Company does not have any financial assets or liabilities classified as Level 3.

Schedule of Assets Measured at Fair Value on a Recurring Basis by Level Within Fair Value Hierarchy <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="14" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Fair Value Measurement Using</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Total</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Quoted Prices in Active Markets for Identical Instruments (Level 1)</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Significant Other Observable Inputs (Level 2)</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Significant Unobservable Inputs (Level 3)</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Assets at December 31, 2020</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="width: 40%; text-align: left; padding-bottom: 1.5pt">Cash invested in Money Market Accounts</td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0" style="border-bottom: Black 1.5pt solid; width: 11%; text-align: right" title="Total assets at fair value">1,429,331</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left"> </td><td id="xdx_986_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0" style="border-bottom: Black 1.5pt solid; width: 11%; text-align: right" title="Total assets at fair value">—</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left">$</td><td id="xdx_985_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0" style="border-bottom: Black 1.5pt solid; width: 11%; text-align: right" title="Total assets at fair value">1,429,331</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td><td style="width: 2%; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member__us-gaap--FinancialInstrumentAxis__custom--CashInvestedInMoneyMarketAccountsMember_pp0p0" style="border-bottom: Black 1.5pt solid; width: 11%; text-align: right" title="Total assets at fair value">—</td><td style="width: 1%; padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Total assets at fair value</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Total assets at fair value">1,429,331</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel1Member_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Total assets at fair value">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_980_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel2Member_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Total assets at fair value">1,429,331</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_981_eus-gaap--AssetsFairValueDisclosure_c20201231__us-gaap--FairValueByMeasurementFrequencyAxis__us-gaap--FairValueMeasurementsRecurringMember__us-gaap--FairValueByFairValueHierarchyLevelAxis__us-gaap--FairValueInputsLevel3Member_pp0p0" style="border-bottom: Black 2.5pt double; text-align: right" title="Total assets at fair value">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

1429331

11. Income Taxes The provision for income taxes consists of the following: Schedule of Provision For Income Taxes <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20200101__20201231_zVGoWstdmzoh" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20190101__20191231_z7b5T9eeSfga" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td>Deferred:</td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredFederalIncomeTaxExpenseBenefit_maDITEBzVxS_zREsrUU2jJ0i" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Federal</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">(1,172,382</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">(827,984</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40C_eus-gaap--DeferredStateAndLocalIncomeTaxExpenseBenefit_maDITEBzVxS_zgT1N2IBahLl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">State and local</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">22,240</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(41,740</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40E_eus-gaap--DeferredIncomeTaxExpenseBenefit_iT_pp0p0_mtDITEBzVxS_zRvQVaUCPK8h" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> Total deferred income tax expense (benefit)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1,150,142</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(869,724</td><td style="text-align: left">)</td></tr> <tr id="xdx_407_eus-gaap--ValuationAllowanceDeferredTaxAssetChangeInAmount_zfAttXwTYbVi" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,150,142</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">869,724</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--IncomeTaxExpenseBenefit_iT_pp0p0_zghzkAbuGgY5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt"> Income tax benefit</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> <p id="xdx_89F_eus-gaap--ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_zXuAq6ihaCTj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">The provision for income taxes varies from the amount determined by applying the U.S. federal statutory rate to income before income taxes as a result of the following: Schedule of Reconciliation of Federal Income Tax Rate <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">U.S. statutory income tax rate</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_986_eus-gaap--EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_pii_uPercent_c20200101__20201231_zIqnRm0CZqgj" style="width: 16%; text-align: right" title="U.S. statutory income tax rate">21.0%</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_987_eus-gaap--EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_pii_uPercent_c20190101__20191231_zOowrv9eZhAe" style="width: 16%; text-align: right" title="U.S. statutory income tax rate">21.0%</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">State and local taxes, net of federal tax benefit</td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_pii_uPercent_c20200101__20201231_z614DztPTRvl" style="text-align: right" title="State and local taxes, net of federal tax benefit">1.8%</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_pii_uPercent_c20190101__20191231_z1d8RFuTj9ce" style="text-align: right" title="State and local taxes, net of federal tax benefit">1.8%</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Permanent differences between book and tax</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--EffectiveIncomeTaxRateReconciliationNondeductibleExpense_pii_uPercent_c20200101__20201231_zH5VKVYQZuxh" style="text-align: right" title="Permanent differences between book and tax">(3.5)%</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--EffectiveIncomeTaxRateReconciliationNondeductibleExpense_pii_uPercent_c20190101__20191231_zP6VddQeetpd" style="text-align: right" title="Permanent differences between book and tax">(3.3)%</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">State rate adjustments</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_pii_uPercent_c20200101__20201231_zFwGNgxnhBCi" style="text-align: right" title="State rate adjustments">(2.2)%</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_pii_uPercent_c20190101__20191231_zSLzwAD8kmOa" style="text-align: right" title="State rate adjustments">(0.9)%</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Prior year return-to-provision adjustment</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes_pii_uPercent_c20200101__20201231_zdoMgk263J6i" style="text-align: right" title="Prior year return-to-provision adjustment">0.2%</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes_pii_uPercent_c20190101__20191231_zyzYk4QBiNwj" style="text-align: right" title="Prior year return-to-provision adjustment">0.3%</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_pii_uPercent_c20200101__20201231_zyTmPTsA0g06" style="border-bottom: Black 1.5pt solid; text-align: right" title="Valuation allowance">(17.3)%</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_pii_uPercent_c20190101__20191231_z8WmzNHE4JPg" style="border-bottom: Black 1.5pt solid; text-align: right" title="Valuation allowance">(18.9)%</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Effective income tax rate</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_984_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pii_d0_uPercent_c20200101__20201231_z5Zqh8xVYax4" style="border-bottom: Black 2.5pt double; text-align: right" title="Effective income tax rate">—%</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_982_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pii_d0_uPercent_c20190101__20191231_zKRm3uRE16og" style="border-bottom: Black 2.5pt double; text-align: right" title="Effective income tax rate">—%</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Included in permanent differences between book and tax in the above table are the differences such as incentive stock option expenses, nondeductible meals and entertainment and stock compensation shortfalls. The state rate adjustments are a result of changes in apportionment and various state rate law changes. The components of the deferred tax asset are as follows: Schedule of Components of Deferred Tax Asset <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20201231_zFvqHQWO6h32" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49F_20191231_zd91OIR3lfC5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_403_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_iI_pp0p0_maDTAGzid3_z85C11ImAGO" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Current accruals</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">1,329,681</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">1,660,817</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_406_ecustom--DeferredTaxAssetsTaxDeferredExpenseOperatingLeaseLiabilities_iI_pp0p0_maDTAGzid3_zLgVwNZYhl1j" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Operating lease liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">536,307</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,021,891</td><td style="text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--DeferredTaxAssetsDeferredIncome_iI_pp0p0_maDTAGzid3_zbYJkLX7PsCc" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred revenue</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,412</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,749</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--DeferredTaxAssetsPropertyPlantAndEquipment_iI_pp0p0_maDTAGzid3_zvuKEesvnojf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Depreciation and amortization</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">952,208</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,095,119</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_iI_pp0p0_maDTAGzid3_zyvu2bHJnDRd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred compensation</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">874,403</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">576,269</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwards_iI_pp0p0_maDTAGzid3_zfGBCTg243jf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Net operating loss carryovers</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">25,264,611</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">23,960,965</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--DeferredTaxAssetsGross_iTI_pp0p0_mtDTAGzid3_maDTANzQL7_zLSXpDYfQj8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred tax assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">28,966,622</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">28,317,810</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--DeferredTaxAssetsValuationAllowance_iNI_pp0p0_di_msDTANzQL7_zySV7ahwSaIb" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(28,378,947</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(27,228,805</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_401_eus-gaap--DeferredTaxAssetsNet_iTI_pp0p0_mtDTANzQL7_maDTANOzwAi_zxd2WPwOVw84" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Net deferred tax assets before deferred tax liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">587,675</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,089,005</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_ecustom--DeferredTaxAssetsOperatingLeaseRightofuseAssets_iI_pp0p0_maDTANOzwAi_zMMs1SPsfpsj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Operating lease right-of-use assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(524,105</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1,009,721</td><td style="text-align: left">)</td></tr> <tr id="xdx_405_ecustom--DeferredTaxAssetsCapitalizedCompensationCosts_iI_pp0p0_maDTANOzwAi_zoeWq1DCEU3c" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Capitalized compensation costs</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(63,570</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(79,284</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_407_ecustom--DeferredTaxAssetsNetOfAccountingMethodChanges_iTI_pp0p0_mtDTANOzwAi_zsKssueOxnfl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Net deferred tax assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> Under Sections 382 and 383 of the Internal Revenue Code of 1986, as amended, if a corporation undergoes an “ownership change,” the corporation’s ability to use its pre-change net operating loss carryforwards and other pre-change tax attributes, such as research tax credits, to offset its post-change income may be limited. In general, an “ownership change” will occur if there is a cumulative change in our ownership by “5-percent shareholders” that exceeds 50 percentage points over a rolling three-year period. Similar rules may apply under state tax laws. Following significant ownership changes during 2013, the Company initiated a review of the availability of its U.S. net operating loss carryforwards. As a result of this review, it was determined that a large portion of the Company’s net operating loss carryovers would expire unused due to the limitation under IRC Section 382. The Company reduced the net operating loss carryover and corresponding valuation allowance as a result of these limitations as reflected in the net operating loss carryovers in the table above. The remaining net operating loss carryforwards following the ownership change have been assigned a full valuation allowance against all net deferred tax assets. In assessing the realizability of deferred tax assets, the Company considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. The Company considers projected future taxable income and tax planning strategies in making this assessment. Based upon the level of historical taxable losses, and projections for future periods over which the deferred tax assets are deductible, the Company determined that a 100% valuation allowance of net deferred tax assets was appropriate. On December 21, 2020, Congress approved the Consolidated Appropriations Act, 2021 (the “Appropriations Act”), which was signed into law by the President on December 27, 2020. The Appropriations Act funds the federal government to the end of the fiscal year and provides further COVID-19 economic relief. One of the business provisions included in the Appropriations Act is clarification of the income tax deductibility of business expenses that were paid for with Paycheck Protection Program funds. The Company will continue to monitor for additional legislation related to COVID-19 and its impact on our results of operations. As of December 31, 2020, we had gross federal net operating loss carryforwards of approximately $111.0 million. The federal net operating loss carryforwards reflect accumulated book losses reduced for the 2013 IRC Section 382 ownership change limitation of $270.8 million and approximately $106.5 million of book/tax differences and expiration of unused carryforwards. The federal net operating loss carryforwards generated prior to the 2018 tax year will expire between 2030 and 2037. The federal net operating loss generated during and beyond 2018 will be carried forward indefinitely as a result of changes in the tax law following the Tax Cuts and Jobs Act. As of December 31, 2020, we had gross state net operating loss carryforward of approximately $34.2 million which will expire at various dates between 2021 and 2040 if not utilized. The Company files income tax returns in the U.S. federal jurisdiction and various state and local jurisdictions. As the Company has a federal net operating loss carryforward from the year ended December 31, 2000 forward, all tax years from 2000 forward are subject to examination. As states have varying carryforward periods, and the Company has recently entered into additional states, the states are generally subject to examination for the previous 10 years or less. At December 31, 2020 and 2019, the Company had less than $0.1 million in reserves for uncertain tax positions. The Company recognizes interest accrued, if any, net of tax and penalties, related to unrecognized tax benefits as components of income tax provision as applicable. As of December 31, 2020, accrued interest and penalties were less than $0.1 million.

The provision for income taxes consists of the following: Schedule of Provision For Income Taxes <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20200101__20201231_zVGoWstdmzoh" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20190101__20191231_z7b5T9eeSfga" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td>Deferred:</td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr id="xdx_40F_eus-gaap--DeferredFederalIncomeTaxExpenseBenefit_maDITEBzVxS_zREsrUU2jJ0i" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%">Federal</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">(1,172,382</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">(827,984</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40C_eus-gaap--DeferredStateAndLocalIncomeTaxExpenseBenefit_maDITEBzVxS_zgT1N2IBahLl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">State and local</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">22,240</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(41,740</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40E_eus-gaap--DeferredIncomeTaxExpenseBenefit_iT_pp0p0_mtDITEBzVxS_zRvQVaUCPK8h" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td> Total deferred income tax expense (benefit)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1,150,142</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(869,724</td><td style="text-align: left">)</td></tr> <tr id="xdx_407_eus-gaap--ValuationAllowanceDeferredTaxAssetChangeInAmount_zfAttXwTYbVi" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">1,150,142</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">869,724</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_404_eus-gaap--IncomeTaxExpenseBenefit_iT_pp0p0_zghzkAbuGgY5" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt"> Income tax benefit</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

-1172382

-827984

22240

-41740

-1150142

-869724

1150142

869724

<p id="xdx_89F_eus-gaap--ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_zXuAq6ihaCTj" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">The provision for income taxes varies from the amount determined by applying the U.S. federal statutory rate to income before income taxes as a result of the following: Schedule of Reconciliation of Federal Income Tax Rate <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">U.S. statutory income tax rate</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_986_eus-gaap--EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_pii_uPercent_c20200101__20201231_zIqnRm0CZqgj" style="width: 16%; text-align: right" title="U.S. statutory income tax rate">21.0%</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_987_eus-gaap--EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_pii_uPercent_c20190101__20191231_zOowrv9eZhAe" style="width: 16%; text-align: right" title="U.S. statutory income tax rate">21.0%</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">State and local taxes, net of federal tax benefit</td><td> </td> <td style="text-align: left"> </td><td id="xdx_983_eus-gaap--EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_pii_uPercent_c20200101__20201231_z614DztPTRvl" style="text-align: right" title="State and local taxes, net of federal tax benefit">1.8%</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_pii_uPercent_c20190101__20191231_z1d8RFuTj9ce" style="text-align: right" title="State and local taxes, net of federal tax benefit">1.8%</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Permanent differences between book and tax</td><td> </td> <td style="text-align: left"> </td><td id="xdx_987_eus-gaap--EffectiveIncomeTaxRateReconciliationNondeductibleExpense_pii_uPercent_c20200101__20201231_zH5VKVYQZuxh" style="text-align: right" title="Permanent differences between book and tax">(3.5)%</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_986_eus-gaap--EffectiveIncomeTaxRateReconciliationNondeductibleExpense_pii_uPercent_c20190101__20191231_zP6VddQeetpd" style="text-align: right" title="Permanent differences between book and tax">(3.3)%</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left">State rate adjustments</td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_pii_uPercent_c20200101__20201231_zFwGNgxnhBCi" style="text-align: right" title="State rate adjustments">(2.2)%</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate_pii_uPercent_c20190101__20191231_zSLzwAD8kmOa" style="text-align: right" title="State rate adjustments">(0.9)%</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Prior year return-to-provision adjustment</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98F_eus-gaap--EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes_pii_uPercent_c20200101__20201231_zdoMgk263J6i" style="text-align: right" title="Prior year return-to-provision adjustment">0.2%</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes_pii_uPercent_c20190101__20191231_zyzYk4QBiNwj" style="text-align: right" title="Prior year return-to-provision adjustment">0.3%</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98B_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_pii_uPercent_c20200101__20201231_zyTmPTsA0g06" style="border-bottom: Black 1.5pt solid; text-align: right" title="Valuation allowance">(17.3)%</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_985_eus-gaap--EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_pii_uPercent_c20190101__20191231_z8WmzNHE4JPg" style="border-bottom: Black 1.5pt solid; text-align: right" title="Valuation allowance">(18.9)%</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Effective income tax rate</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_984_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pii_d0_uPercent_c20200101__20201231_z5Zqh8xVYax4" style="border-bottom: Black 2.5pt double; text-align: right" title="Effective income tax rate">—%</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_982_eus-gaap--EffectiveIncomeTaxRateContinuingOperations_pii_d0_uPercent_c20190101__20191231_zKRm3uRE16og" style="border-bottom: Black 2.5pt double; text-align: right" title="Effective income tax rate">—%</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

0.210

0.018

-0.035

-0.033

-0.022

-0.009

0.002

0.003

-0.173

-0.189

The components of the deferred tax asset are as follows: Schedule of Components of Deferred Tax Asset <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_495_20201231_zFvqHQWO6h32" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49F_20191231_zd91OIR3lfC5" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_403_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities_iI_pp0p0_maDTAGzid3_z85C11ImAGO" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Current accruals</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">1,329,681</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">1,660,817</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_406_ecustom--DeferredTaxAssetsTaxDeferredExpenseOperatingLeaseLiabilities_iI_pp0p0_maDTAGzid3_zLgVwNZYhl1j" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Operating lease liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">536,307</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,021,891</td><td style="text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--DeferredTaxAssetsDeferredIncome_iI_pp0p0_maDTAGzid3_zbYJkLX7PsCc" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred revenue</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">9,412</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">2,749</td><td style="text-align: left"> </td></tr> <tr id="xdx_40E_eus-gaap--DeferredTaxAssetsPropertyPlantAndEquipment_iI_pp0p0_maDTAGzid3_zvuKEesvnojf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Depreciation and amortization</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">952,208</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,095,119</td><td style="text-align: left"> </td></tr> <tr id="xdx_40A_eus-gaap--DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeCompensation_iI_pp0p0_maDTAGzid3_zyvu2bHJnDRd" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred compensation</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">874,403</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">576,269</td><td style="text-align: left"> </td></tr> <tr id="xdx_405_eus-gaap--DeferredTaxAssetsOperatingLossCarryforwards_iI_pp0p0_maDTAGzid3_zfGBCTg243jf" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Net operating loss carryovers</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">25,264,611</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">23,960,965</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr id="xdx_40C_eus-gaap--DeferredTaxAssetsGross_iTI_pp0p0_mtDTAGzid3_maDTANzQL7_zLSXpDYfQj8" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Deferred tax assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">28,966,622</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">28,317,810</td><td style="text-align: left"> </td></tr> <tr id="xdx_401_eus-gaap--DeferredTaxAssetsValuationAllowance_iNI_pp0p0_di_msDTANzQL7_zySV7ahwSaIb" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Valuation allowance</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(28,378,947</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(27,228,805</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_401_eus-gaap--DeferredTaxAssetsNet_iTI_pp0p0_mtDTANzQL7_maDTANOzwAi_zxd2WPwOVw84" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Net deferred tax assets before deferred tax liabilities</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">587,675</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">1,089,005</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_ecustom--DeferredTaxAssetsOperatingLeaseRightofuseAssets_iI_pp0p0_maDTANOzwAi_zMMs1SPsfpsj" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Operating lease right-of-use assets</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(524,105</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(1,009,721</td><td style="text-align: left">)</td></tr> <tr id="xdx_405_ecustom--DeferredTaxAssetsCapitalizedCompensationCosts_iI_pp0p0_maDTANOzwAi_zoeWq1DCEU3c" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Capitalized compensation costs</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(63,570</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(79,284</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_407_ecustom--DeferredTaxAssetsNetOfAccountingMethodChanges_iTI_pp0p0_mtDTANOzwAi_zsKssueOxnfl" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Net deferred tax assets</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">—</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

1329681

1660817

536307 1021891

9412

2749

952208

1095119

874403

576269

25264611

23960965

28966622

28317810

28378947

27228805

587675

1089005

-524105 -1009721 -63570 -79284

111000000.0

270800000 106500000 The federal net operating loss carryforwards generated prior to the 2018 tax year will expire between 2030 and 2037. 34200000 expire at various dates between 2021 and 2040 if not utilized. P10Y

100000

12. Net Loss per Share The following is a reconciliation of the numerator (net loss) and the denominator (number of shares) used in the basic and diluted earnings per share calculations: Schedule of Computation of Basic and Diluted Earnings Per Share <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49D_20200101__20201231_zyiKTGWv2Pzi" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20190101__20191231_z04rTsPifU7d" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt"> </td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_40C_eus-gaap--NetIncomeLoss_maNILATzPuJ_z24Xtp1bfQ72" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Net loss</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">(6,646,459</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">(4,591,284</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40F_eus-gaap--PreferredStockDividendsIncomeStatementImpact_iN_pp0p0_di_msNILATzPuJ_zCFCSvP8Jaol" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Cumulative dividend on Series A Convertible Preferred Stock</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,369,421</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,429,400</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40D_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_iT_mtNILATzPuJ_ztkU5PO8HR4j" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net loss attributable to common stockholders</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(8,015,880</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(6,020,684</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--WeightedAverageNumberOfShareOutstandingBasicAndDiluted_i_pii" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Weighted average number of common shares and equivalents:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">72,746,268</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">63,051,581</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--EarningsPerShareBasic_i_pii" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Basic EPS</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(0.11</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(0.10</td><td style="text-align: left">)</td></tr> <tr id="xdx_408_eus-gaap--EarningsPerShareDiluted_i_pii" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Diluted EPS</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(0.11</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(0.10</td><td style="text-align: left">)</td></tr> </table> <p id="xdx_891_eus-gaap--ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_zokyYOREl0ee" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">The following table sets forth the number of common shares that were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive as follows: Schedule of Anti-Dilutive Securities Excluded From Computation of Diluted Earnings Per Share <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Shares issuable upon vesting/exercise of:</td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; width: 60%; text-align: left">Options to purchase common stock</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98B_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--OptionsToPurchaseCommonStockMember_pii" style="width: 16%; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">2,456,979</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_984_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--OptionsToPurchaseCommonStockMember_pii" style="width: 16%; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">1,857,599</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Series A Convertible Preferred Stock and Accumulated Dividends</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--SeriesAConvertiblePreferredStockAndAccumulatedDividendsMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">43,483,062</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--SeriesAConvertiblePreferredStockAndAccumulatedDividendsMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">42,497,068</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Series B Convertible Preferred Stock</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--SeriesBConvertiblePreferredStockMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">5,610,121</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--SeriesBConvertiblePreferredStockMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">5,610,121</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Restricted stock units</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">1,112,473</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">840,712</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; padding-bottom: 1.5pt">Warrants</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">15,385</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98E_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">46,155</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231_pii" style="border-bottom: Black 2.5pt double; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">52,678,020</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_982_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231_pii" style="border-bottom: Black 2.5pt double; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">50,851,655</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

The following is a reconciliation of the numerator (net loss) and the denominator (number of shares) used in the basic and diluted earnings per share calculations: Schedule of Computation of Basic and Diluted Earnings Per Share <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 100%"> <tr style="display: none; vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49D_20200101__20201231_zyiKTGWv2Pzi" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49C_20190101__20191231_z04rTsPifU7d" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 1.5pt"> </td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_40C_eus-gaap--NetIncomeLoss_maNILATzPuJ_z24Xtp1bfQ72" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Net loss</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">(6,646,459</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right">(4,591,284</td><td style="width: 1%; text-align: left">)</td></tr> <tr id="xdx_40F_eus-gaap--PreferredStockDividendsIncomeStatementImpact_iN_pp0p0_di_msNILATzPuJ_zCFCSvP8Jaol" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 1.5pt">Cumulative dividend on Series A Convertible Preferred Stock</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,369,421</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(1,429,400</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_40D_eus-gaap--NetIncomeLossAvailableToCommonStockholdersBasic_iT_mtNILATzPuJ_ztkU5PO8HR4j" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 2.5pt">Net loss attributable to common stockholders</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(8,015,880</td><td style="padding-bottom: 2.5pt; text-align: left">)</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right">(6,020,684</td><td style="padding-bottom: 2.5pt; text-align: left">)</td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr id="xdx_409_eus-gaap--WeightedAverageNumberOfShareOutstandingBasicAndDiluted_i_pii" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Weighted average number of common shares and equivalents:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">72,746,268</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">63,051,581</td><td style="text-align: left"> </td></tr> <tr id="xdx_403_eus-gaap--EarningsPerShareBasic_i_pii" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Basic EPS</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(0.11</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(0.10</td><td style="text-align: left">)</td></tr> <tr id="xdx_408_eus-gaap--EarningsPerShareDiluted_i_pii" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left">Diluted EPS</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(0.11</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td style="text-align: right">(0.10</td><td style="text-align: left">)</td></tr> </table>

-6646459

-4591284

1369421

1429400

-8015880

-6020684

72746268

63051581

-0.11

-0.10

-0.11

-0.10

<p id="xdx_891_eus-gaap--ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_zokyYOREl0ee" style="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: justify; text-indent: 0.3in">The following table sets forth the number of common shares that were excluded from the computation of diluted earnings per share because their inclusion would have been anti-dilutive as follows: Schedule of Anti-Dilutive Securities Excluded From Computation of Diluted Earnings Per Share <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 90%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td>Shares issuable upon vesting/exercise of:</td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; width: 60%; text-align: left">Options to purchase common stock</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98B_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--OptionsToPurchaseCommonStockMember_pii" style="width: 16%; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">2,456,979</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_984_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--OptionsToPurchaseCommonStockMember_pii" style="width: 16%; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">1,857,599</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Series A Convertible Preferred Stock and Accumulated Dividends</td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--SeriesAConvertiblePreferredStockAndAccumulatedDividendsMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">43,483,062</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_988_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--SeriesAConvertiblePreferredStockAndAccumulatedDividendsMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">42,497,068</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; text-align: left">Series B Convertible Preferred Stock</td><td> </td> <td style="text-align: left"> </td><td id="xdx_985_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--SeriesBConvertiblePreferredStockMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">5,610,121</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__custom--SeriesBConvertiblePreferredStockMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">5,610,121</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt; text-align: left">Restricted stock units</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">1,112,473</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_98E_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--RestrictedStockUnitsRSUMember_pii" style="text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">840,712</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; padding-bottom: 1.5pt">Warrants</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98D_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">15,385</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_98E_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231__us-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis__us-gaap--WarrantMember_pii" style="border-bottom: Black 1.5pt solid; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">46,155</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_983_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20200101__20201231_pii" style="border-bottom: Black 2.5pt double; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">52,678,020</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left"> </td><td id="xdx_982_eus-gaap--AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_c20190101__20191231_pii" style="border-bottom: Black 2.5pt double; text-align: right" title="Anti-dilutive common shares excluded from the computation of diluted earnings per share">50,851,655</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

2456979

1857599

43483062

42497068

5610121

1112473

840712

15385

46155

52678020

50851655

13. Employee Benefit Plan The Company offers employees the opportunity to participate in a 401(k) plan. The Company recognized expense of approximately $0.3 million and $0.2 million for the years ended December 31, 2020 and 2019. The Company matches employee contributions up to 3% of each participating employee’s salary.

300000

200000

0.03

14. Product Warranty Provisions The Company’s standard policy is to warrant all capital systems against defects in material or workmanship for one year following installation. The Company’s estimate of costs to service the warranty obligations is based on historical experience and current product performance trends. A regular review of warranty obligations is performed to determine the adequacy of the reserve and adjustments are made to the estimated warranty liability as appropriate. Accrued warranty, which is included in other accrued liabilities, consists of the following: Schedule of Accrued Warranty <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20200101__20201231_zhtMGX6uKh6l" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49D_20190101__20191231_zTTAtxfJd0xf" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_404_eus-gaap--ProductWarrantyAccrualClassifiedCurrent_iS_pp0p0_zOikitiw6Vmb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Warranty accrual, beginning of the fiscal period</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right" title="Warranty accrual, beginning of the fiscal period">141,697</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right" title="Warranty accrual, beginning of the fiscal period">149,464</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--ProductWarrantyAccrualPreexistingIncreaseDecrease_i_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Accrual adjustment for product warranty</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Accrual adjustment for product warranty">49,974</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Accrual adjustment for product warranty">56,118</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--ProductWarrantyAccrualPayments_iN_pp0p0_di_zavCov9AUNv1" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Payments made</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right" title="Payments made">(34,056</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(63,885</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_407_eus-gaap--ProductWarrantyAccrualClassifiedCurrent_iE_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Warranty accrual, end of the fiscal period</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right" title="Warranty accrual, end of the fiscal period">157,615</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right" title="Warranty accrual, end of the fiscal period">141,697</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

Accrued warranty, which is included in other accrued liabilities, consists of the following: Schedule of Accrued Warranty <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_490_20200101__20201231_zhtMGX6uKh6l" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" id="xdx_49D_20190101__20191231_zTTAtxfJd0xf" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">December 31, 2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr id="xdx_404_eus-gaap--ProductWarrantyAccrualClassifiedCurrent_iS_pp0p0_zOikitiw6Vmb" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">Warranty accrual, beginning of the fiscal period</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right" title="Warranty accrual, beginning of the fiscal period">141,697</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 16%; text-align: right" title="Warranty accrual, beginning of the fiscal period">149,464</td><td style="width: 1%; text-align: left"> </td></tr> <tr id="xdx_408_eus-gaap--ProductWarrantyAccrualPreexistingIncreaseDecrease_i_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="text-align: left">Accrual adjustment for product warranty</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Accrual adjustment for product warranty">49,974</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right" title="Accrual adjustment for product warranty">56,118</td><td style="text-align: left"> </td></tr> <tr id="xdx_400_eus-gaap--ProductWarrantyAccrualPayments_iN_pp0p0_di_zavCov9AUNv1" style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 1.5pt">Payments made</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right" title="Payments made">(34,056</td><td style="padding-bottom: 1.5pt; text-align: left">)</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">(63,885</td><td style="padding-bottom: 1.5pt; text-align: left">)</td></tr> <tr id="xdx_407_eus-gaap--ProductWarrantyAccrualClassifiedCurrent_iE_pp0p0" style="vertical-align: bottom; background-color: White"> <td style="text-align: left; padding-bottom: 2.5pt">Warranty accrual, end of the fiscal period</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right" title="Warranty accrual, end of the fiscal period">157,615</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td style="border-bottom: Black 2.5pt double; text-align: right" title="Warranty accrual, end of the fiscal period">141,697</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

141697

149464

49974

56118

34056

63885

157615

141697

15. Commitments and Contingencies The Company at times becomes a party to claims in the ordinary course of business. Management believes that the ultimate resolution of pending or threatened proceedings will not have a material effect on the financial position, results of operations or liquidity of the Company.

16. Segment Information The Company considers reporting segments in accordance with general accounting principles for disclosures about segments of an enterprise and related information. The Company’s system and disposable devices are developed and marketed to a broad base of hospitals in the United States and internationally. The Company considers all such sales to be part of a single operating segment. Geographic revenues for the years ended December 31, 2020 and 2019 were as follows: Schedule of Geographic Revenues <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">United States</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20200101__20201231__srt--ConsolidationItemsAxis__us-gaap--OperatingSegmentsMember__srt--StatementGeographicalAxis__country--US_zQ8ayI1kYEU" style="width: 16%; text-align: right" title="Total">17,442,883</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20190101__20191231__srt--ConsolidationItemsAxis__us-gaap--OperatingSegmentsMember__srt--StatementGeographicalAxis__country--US_z217NRPm8vci" style="width: 16%; text-align: right" title="Total">19,265,635</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1.5pt">International</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20200101__20201231__srt--ConsolidationItemsAxis__us-gaap--OperatingSegmentsMember__srt--StatementGeographicalAxis__us-gaap--NonUsMember_zTCNLYbdp0h6" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total">9,187,152</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20190101__20191231__srt--ConsolidationItemsAxis__us-gaap--OperatingSegmentsMember__srt--StatementGeographicalAxis__us-gaap--NonUsMember_zfub8F1OJ8d3" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total">9,636,915</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20200101__20201231_zEmSvADhjPW8" style="border-bottom: Black 2.5pt double; text-align: right" title="Total">26,630,035</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20190101__20191231_zZp9DftCayHb" style="border-bottom: Black 2.5pt double; text-align: right" title="Total">28,902,550</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table> All of the Company’s long-lived assets are located in the United States. Revenues are attributed to countries based on the location of the customer.

Schedule of Geographic Revenues <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year Ended December 31,</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2020</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">2019</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 60%; text-align: left">United States</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20200101__20201231__srt--ConsolidationItemsAxis__us-gaap--OperatingSegmentsMember__srt--StatementGeographicalAxis__country--US_zQ8ayI1kYEU" style="width: 16%; text-align: right" title="Total">17,442,883</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20190101__20191231__srt--ConsolidationItemsAxis__us-gaap--OperatingSegmentsMember__srt--StatementGeographicalAxis__country--US_z217NRPm8vci" style="width: 16%; text-align: right" title="Total">19,265,635</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-bottom: 1.5pt">International</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_980_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20200101__20201231__srt--ConsolidationItemsAxis__us-gaap--OperatingSegmentsMember__srt--StatementGeographicalAxis__us-gaap--NonUsMember_zTCNLYbdp0h6" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total">9,187,152</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td id="xdx_984_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20190101__20191231__srt--ConsolidationItemsAxis__us-gaap--OperatingSegmentsMember__srt--StatementGeographicalAxis__us-gaap--NonUsMember_zfub8F1OJ8d3" style="border-bottom: Black 1.5pt solid; text-align: right" title="Total">9,636,915</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 2.5pt">Total</td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_98A_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20200101__20201231_zEmSvADhjPW8" style="border-bottom: Black 2.5pt double; text-align: right" title="Total">26,630,035</td><td style="padding-bottom: 2.5pt; text-align: left"> </td><td style="padding-bottom: 2.5pt"> </td> <td style="border-bottom: Black 2.5pt double; text-align: left">$</td><td id="xdx_988_eus-gaap--RevenueFromContractWithCustomerExcludingAssessedTax_pp0p0_c20190101__20191231_zZp9DftCayHb" style="border-bottom: Black 2.5pt double; text-align: right" title="Total">28,902,550</td><td style="padding-bottom: 2.5pt; text-align: left"> </td></tr> </table>

17442883

19265635

9187152

9636915

26630035

28902550

17. Subsequent Events On February 23, 2021, the Company and David L. Fischel, the President and Chief Executive Officer of the Company, entered into a Performance Share Unit Award Agreement (the “PSU Agreement”), pursuant to which the Company granted Mr. Fischel Performance Share Units (the “PSUs”) representing the right to receive up to an aggregate of <span id="xdx_907_eus-gaap--ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_c20210222__20210223__us-gaap--TypeOfArrangementAxis__custom--PerformanceShareUnitAwardAgreementMember__srt--TitleOfIndividualAxis__custom--Mr.FischelMember__us-gaap--StatementEquityComponentsAxis__us-gaap--CommonStockMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_pii">13,000,000 shares of common stock of the Company, subject to the terms and conditions set forth in the PSU Agreement. The PSU Agreement is available in a Form 8-K filed with the Securities and Exchange Commission on February 24, 2021. On March 1, 2021, the Company entered into an office lease agreement (the “Lease”) with Globe Building Company (the “Landlord”), under which the Company will lease executive office space and manufacturing facilities of approximately <span id="xdx_90E_eus-gaap--AreaOfLand_c20210301__us-gaap--TypeOfArrangementAxis__custom--OfficeLeaseAgreementMember__dei--LegalEntityAxis__custom--GlobeBuildingCompanyMember__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeSpaceAndManufacturingFacilitiesMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_pii">43,100 square feet of rentable space located at 710 N. Tucker Boulevard, St. Louis, Missouri (the “Premises”) that will serve as the Company’s new principal executive and administrative offices and manufacturing facility. The Lease for the Premises is effective at the later of January 1, 2022 or the date on which the Company has received an occupancy permit, and has a term of <span id="xdx_901_eus-gaap--LesseeOperatingLeaseTermOfContract_iI_dtYxL_c20210301__us-gaap--TypeOfArrangementAxis__custom--OfficeLeaseAgreementMember__dei--LegalEntityAxis__custom--GlobeBuildingCompanyMember__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeSpaceAndManufacturingFacilitiesMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_z3cOGERARMWj" title="::XDX::10">ten years, with <span id="xdx_906_eus-gaap--LesseeOperatingLeaseOptionToExtend_c20210227__20210301__us-gaap--TypeOfArrangementAxis__custom--OfficeLeaseAgreementMember__dei--LegalEntityAxis__custom--GlobeBuildingCompanyMember__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeSpaceAndManufacturingFacilitiesMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember">two renewal options of <span id="xdx_908_eus-gaap--LesseeOperatingLeaseRenewalTerm_iI_dtYxL_c20210301__us-gaap--TypeOfArrangementAxis__custom--OfficeLeaseAgreementMember__dei--LegalEntityAxis__custom--GlobeBuildingCompanyMember__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeSpaceAndManufacturingFacilitiesMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zUVOwiyMf6Gj" title="::XDX::5">five years each. The minimum annual rent under the terms of the Lease ranges from approximately $<span id="xdx_902_eus-gaap--OperatingLeaseCost_pn5n6_c20210227__20210301__us-gaap--TypeOfArrangementAxis__custom--OfficeLeaseAgreementMember__dei--LegalEntityAxis__custom--GlobeBuildingCompanyMember__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeSpaceAndManufacturingFacilitiesMember__srt--StatementScenarioAxis__custom--MinimumAnnualRentInTwoThousandTwentyTwoMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zgqQDlqzVcB9">0.8 million in 2022 to $<span id="xdx_906_eus-gaap--OperatingLeaseCost_pn5n6_c20210227__20210301__us-gaap--TypeOfArrangementAxis__custom--OfficeLeaseAgreementMember__dei--LegalEntityAxis__custom--GlobeBuildingCompanyMember__us-gaap--PropertyPlantAndEquipmentByTypeAxis__custom--OfficeSpaceAndManufacturingFacilitiesMember__srt--StatementScenarioAxis__custom--MinimumAnnualRentInTwoThousandThirtyOneMember__us-gaap--SubsequentEventTypeAxis__us-gaap--SubsequentEventMember_zmcP5RNF7ZVb">1.0 million in 2031. At the Lease commencement, the Company will relocate its current St. Louis, Missouri operations to the Premises in the new building. The Lease is available in a Form 8-K filed with the Securities and Exchange Commission on March 4, 2021.

13000000

43100

2022-01-01

two renewal options of five years each

800000

1000000.0

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS FOR THE YEARS ENDED DECEMBER 31, 2020 AND 2019 Schedule of Valuation and Qualifying Accounts <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Additions</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Balance at</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Charged to</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Beginning of</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Cost and</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Balance at the</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Expenses</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Deductions</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">End of Year</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Allowance for doubtful accounts and returns:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; width: 40%">Year ended December 31, 2020</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_987_eus-gaap--ValuationAllowancesAndReservesBalance_iS_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_z847gQrxL8i7" style="width: 11%; text-align: right" title="Balance at Beginning of Year">380,212</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_989_eus-gaap--ValuationAllowancesAndReservesChargedToCostAndExpense_iN_di_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zRlijJEc6tp9" style="width: 11%; text-align: right" title="Additions Charged to Cost and Expenses">(29,411</td><td style="width: 1%; text-align: left">) </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98B_eus-gaap--ValuationAllowancesAndReservesDeductions_iN_di_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zsExsJxo2uL4" style="width: 11%; text-align: right" title="Deductions">(227,187</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--ValuationAllowancesAndReservesBalance_iE_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zi82nu3xUFE5" style="width: 11%; text-align: right" title="Balance at the End of Year">123,614</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt">Year ended December 31, 2019</td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ValuationAllowancesAndReservesBalance_iS_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zCyZMhJgF33b" style="text-align: right">398,847</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--ValuationAllowancesAndReservesChargedToCostAndExpense_iN_di_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zIgaTqKRSfVh" style="text-align: right">(14,535</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--ValuationAllowancesAndReservesDeductions_iN_di_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_z6XgPp3f2CR6" style="text-align: right">(4,100</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--ValuationAllowancesAndReservesBalance_iE_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zJXINP2B0LAj" style="text-align: right">380,212</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Allowance for inventories valuation:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt">Year ended December 31, 2020</td><td> </td> <td style="text-align: left">$</td><td id="xdx_984_eus-gaap--ValuationAllowancesAndReservesBalance_iS_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zzdzgwd9Ckd3" style="text-align: right">3,895,451</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--ValuationAllowancesAndReservesChargedToCostAndExpense_iN_di_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zgqd5g9nVpOl" style="text-align: right">126,616</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--ValuationAllowancesAndReservesDeductions_iN_di_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zcKJOCYNkUEi" style="text-align: right">(946,547</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_986_eus-gaap--ValuationAllowancesAndReservesBalance_iE_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zlHULUsrceCl" style="text-align: right">3,075,520</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt">Year ended December 31, 2019</td><td> </td> <td style="text-align: left">$</td><td id="xdx_988_eus-gaap--ValuationAllowancesAndReservesBalance_iS_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_z5O6gs3miNV5" style="text-align: right">4,460,811</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--ValuationAllowancesAndReservesChargedToCostAndExpense_iN_di_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zBiCZQxmCmK6" style="text-align: right">(351,925</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--ValuationAllowancesAndReservesDeductions_iN_di_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zymFCji1mbZ4" style="text-align: right">(213,435</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_986_eus-gaap--ValuationAllowancesAndReservesBalance_iE_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zb32DqiIkm4e" style="text-align: right">3,895,451</td><td style="text-align: left"> </td></tr> </table> Schedule of Valuation and Qualifying Accounts <table cellpadding="0" cellspacing="0" style="font: 10pt Times New Roman, Times, Serif; border-collapse: collapse; width: 95%"> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Additions</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Balance at</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Charged to</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Beginning of</td><td style="font-weight: bold"> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Cost and</td><td style="font-weight: bold"> </td><td> </td> <td colspan="2"> </td><td> </td><td style="font-weight: bold"> </td> <td colspan="2" style="font-weight: bold; text-align: center">Balance at the</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Year</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Expenses</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">Deductions</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="border-bottom: Black 1.5pt solid; font-weight: bold; text-align: center">End of Year</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Allowance for doubtful accounts and returns:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt; width: 40%">Year ended December 31, 2020</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_987_eus-gaap--ValuationAllowancesAndReservesBalance_iS_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_z847gQrxL8i7" style="width: 11%; text-align: right" title="Balance at Beginning of Year">380,212</td><td style="width: 1%; text-align: left"> </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_989_eus-gaap--ValuationAllowancesAndReservesChargedToCostAndExpense_iN_di_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zRlijJEc6tp9" style="width: 11%; text-align: right" title="Additions Charged to Cost and Expenses">(29,411</td><td style="width: 1%; text-align: left">) </td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left"> </td><td id="xdx_98B_eus-gaap--ValuationAllowancesAndReservesDeductions_iN_di_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zsExsJxo2uL4" style="width: 11%; text-align: right" title="Deductions">(227,187</td><td style="width: 1%; text-align: left">)</td><td style="width: 2%"> </td> <td style="width: 1%; text-align: left">$</td><td id="xdx_984_eus-gaap--ValuationAllowancesAndReservesBalance_iE_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zi82nu3xUFE5" style="width: 11%; text-align: right" title="Balance at the End of Year">123,614</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt">Year ended December 31, 2019</td><td> </td> <td style="text-align: left">$</td><td id="xdx_983_eus-gaap--ValuationAllowancesAndReservesBalance_iS_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zCyZMhJgF33b" style="text-align: right">398,847</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--ValuationAllowancesAndReservesChargedToCostAndExpense_iN_di_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zIgaTqKRSfVh" style="text-align: right">(14,535</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_980_eus-gaap--ValuationAllowancesAndReservesDeductions_iN_di_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_z6XgPp3f2CR6" style="text-align: right">(4,100</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_989_eus-gaap--ValuationAllowancesAndReservesBalance_iE_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--AllowanceForLoanAndLeaseLossesMember_zJXINP2B0LAj" style="text-align: right">380,212</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-weight: bold; text-align: left">Allowance for inventories valuation:</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: White"> <td style="padding-left: 10pt">Year ended December 31, 2020</td><td> </td> <td style="text-align: left">$</td><td id="xdx_984_eus-gaap--ValuationAllowancesAndReservesBalance_iS_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zzdzgwd9Ckd3" style="text-align: right">3,895,451</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_981_eus-gaap--ValuationAllowancesAndReservesChargedToCostAndExpense_iN_di_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zgqd5g9nVpOl" style="text-align: right">126,616</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_989_eus-gaap--ValuationAllowancesAndReservesDeductions_iN_di_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zcKJOCYNkUEi" style="text-align: right">(946,547</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_986_eus-gaap--ValuationAllowancesAndReservesBalance_iE_c20200101__20201231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zlHULUsrceCl" style="text-align: right">3,075,520</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 10pt">Year ended December 31, 2019</td><td> </td> <td style="text-align: left">$</td><td id="xdx_988_eus-gaap--ValuationAllowancesAndReservesBalance_iS_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_z5O6gs3miNV5" style="text-align: right">4,460,811</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td id="xdx_984_eus-gaap--ValuationAllowancesAndReservesChargedToCostAndExpense_iN_di_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zBiCZQxmCmK6" style="text-align: right">(351,925</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td id="xdx_98D_eus-gaap--ValuationAllowancesAndReservesDeductions_iN_di_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zymFCji1mbZ4" style="text-align: right">(213,435</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left">$</td><td id="xdx_986_eus-gaap--ValuationAllowancesAndReservesBalance_iE_c20190101__20191231__us-gaap--ValuationAllowancesAndReservesTypeAxis__us-gaap--InventoryValuationReserveMember_zb32DqiIkm4e" style="text-align: right">3,895,451</td><td style="text-align: left"> </td></tr> </table>

380212

29411

227187

123614

398847

14535

4100

380212

3895451

-126616

946547

3075520

4460811

351925

213435

3895451