Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Basis of Accounting, Policy [Policy Text Block]

Basis of Presentation and Use of Estimates

The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”). The preparation of the accompanying consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

The accompanying financial statements are consolidated for the years ended December 31, 2021 and 2020 and includes the accounts of Aravive, Inc. and its wholly-owned subsidiary Aravive Biologics. All intercompany accounts and transactions have been eliminated. The U.S. dollar is the functional currency for the Company's subsidiary and consolidated operations.

Going Concern Uncertainty

Since inception, the Company has incurred net losses and negative cash flows from operations. At December 31, 2021, the Company had an accumulated deficit of $539.8 million and working capital of $44.8 million. Since inception, the Company has incurred net losses and negative cash flows from operations. The Company expects to continue to incur losses from costs related to the development of batiraxcept and related administrative activities for the foreseeable future. These factors raised substantial doubt about the Company’s ability to continue as a going concern. The accompanying consolidated financial statements do not include any adjustments relating to the recoverability of the recorded assets or the classification of liabilities that  may be necessary should the Company be unable to continue as a going concern. As of December 31, 2021, the Company had a cash and cash equivalents balance of $59.4 million consisting of cash and investments in highly liquid U.S. money market funds.  The Company intends to seek additional capital through equity and/or debt financings, collaborative or other funding arrangements with partners or through other sources of financing to fulfill its operating and capital requirement for the next 12 months to advance its clinical development program to later stages of development and potentially commercialize its clinical product candidate batiraxcept. Although management has been successful in raising capital in the past, there can be no assurance that the Company will be successful or that any needed financing will be available in the future at terms acceptable to the Company. If the Company is unable to raise additional funds when needed, the Company  may be required to delay, reduce, or terminate some or all of its development programs and clinical trials. The Company  may also be required to sell or license to others technologies or clinical product candidates or programs that it would prefer to develop and commercialize itself.

Segment Reporting, Policy [Policy Text Block]

Segments

The Company operates in one segment. Management uses one measurement of profitability and does not segregate its business for internal reporting. All long-lived assets are maintained in the United States of America.

Concentration Risk, Credit Risk, Policy [Policy Text Block]

Concentration of Credit Risk

Financial instruments that potentially subject the Company to a concentration of credit risk consist of cash and cash equivalents. All of the Company’s cash and cash equivalents are held at several financial institutions that management believes are of high credit quality. Such deposits may exceed federally insured limits.

Risks and Uncertainties [Policy Text Block]

Risk and Uncertainties

The Company’s future results of operations involve a number of risks and uncertainties. Factors that could affect the Company’s future operating results and cause actual results to vary materially from expectations include, but are not limited to, uncertainty of results of clinical trials and reaching milestones, uncertainty of regulatory approval of the Company’s potential drug candidates, uncertainty of market acceptance of the Company’s products, competition from substitute products and larger companies, securing and protecting proprietary technology, strategic relationships and dependence on key individuals and sole source suppliers.

Products developed by the Company require clearances from the U.S. Food and Drug Administration (“FDA”), the Pharmaceuticals Medicines and Devices Agency (“PMDA”), or other international regulatory agencies prior to commercial sales. There can be no assurance that the products will receive the necessary clearances. If the Company is denied clearance, clearance is delayed or the Company is unable to maintain clearance, it could have a material adverse impact on the Company.

The Company expects to incur substantial operating losses for the next several years and will need to obtain additional financing in order to launch and commercialize any product candidates for which it receives regulatory approval.  

The Company relies on third-party manufacturers to purchase from their third-party vendors the materials necessary to produce product candidates and manufacture product candidates for clinical studies. The Company also depends on third-party suppliers for key materials and services used in research and development, as well as manufacturing processes, and are subject to certain risks related to the loss of these third-party suppliers or their inability to supply adequate materials and services. The Company does not control the manufacturing processes of the contract development and manufacturing organizations, or CDMOs, with whom it contracts and is dependent on these third parties for the production of its therapeutic candidates in accordance with relevant regulations (such as current Good Manufacturing Practices, or cGMP, which includes, among other things, quality control, quality assurance and the maintenance of records and documentation. In addition, the Company is dependent upon third-party suppliers for the materials needed to construct its cGMP facility as well as the equipment that will be needed to run the facility.

Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]

Cash and Cash Equivalents, Restricted Cash

The Company considers all highly liquid investments purchased with an original maturity of three months or less to be cash equivalents. At December 31, 2021 and 2020 the Company’s cash and cash equivalents were held in multiple institutions within the United States and included deposits in money market funds which were unrestricted as to withdrawal or use. Restricted cash consists of a letter of credit to secure the Company’s obligations under the right-of-use lease.

Property, Plant and Equipment, Policy [Policy Text Block]

Property and Equipment, Net

Property and equipment are stated at cost and depreciated using the straight-line method over the estimated useful lives of the assets, generally between three and five years. Leasehold improvements are amortized on a straight-line basis over the lesser of their useful life or the term of the lease. Maintenance and repairs are charged to expense as incurred, and improvements are capitalized. When assets are retired or otherwise disposed of, the cost and accumulated depreciation are removed from the consolidated balance sheets and any resulting gain or loss is reflected in operations in the period realized.

Lessee, Leases [Policy Text Block]

Leases

The Company leases all of its office space in conducting its business. At inception, the Company determines whether an agreement represents a lease and at commencement the Company evaluates each lease agreement to determine whether the lease is an operating or financing lease.

The Company records an operating lease ROU asset and an operating lease obligation on the consolidated balance sheet when entering into a lease. ROU assets represent the Company’s ROU of the underlying asset for the lease term and the lease obligation represents the Company’s commitment to make the lease payments arising from the lease. Lease obligations are recognized at the commencement date based on the present value of remaining lease payments over the lease term and ROU assets are calculated as the lease liability, adjusted by unamortized initial direct costs, unamortized lease incentives received, cumulative deferred or prepaid lease payments, and accumulated impairment losses. As the Company’s leases do not provide an implicit rate, the Company has used an estimated incremental borrowing rate based on the information available at the lease inception date in determining the present value of lease payments. The lease term may include options to extend or terminate the lease and the Company includes renewal options in its calculation of the estimated lease term when it is reasonably certain that the Company will exercise that option. Operating lease expense is recognized on a straight-line basis over the lease term, subject to any changes in the lease or expectations regarding the terms. Variable lease costs such as common area costs and property taxes are expensed as incurred. Variable lease costs and short-term lease payments not included in the lease liability are classified within operating activities in the consolidated statements of cash flows. For all lease agreements, the Company has combined lease and nonlease components. Leases with an initial term of 12 months or less are not recorded on the consolidated balance sheet. These expenses are recognized within operating expenses in the consolidated statements of operations.

Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]

Impairment of Long-Lived Assets

The Company reviews property and equipment for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability is measured by the comparison of the carrying amount to the future net cash flows which the assets are expected to generate. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value (i.e., determined through estimating projected discounted future net cash flows or other acceptable methods of determining fair value) arising from the asset. There were no such impairments of long-lived assets during the year ended  December 31, 2021.

The Company accounted for the sublease with EVA Automation, Inc. (“EVA”) as an operating lease and reviewed the ROU asset recorded associated with the sublease for impairment whenever events or changes in circumstances indicate that the carrying amount of the ROU asset may not be recoverable in accordance with ASC 360-10. Recoverability is measured if the lease cost for the term of the sublease exceeds the anticipated sublease income for the same period on an undiscounted basis and the Company shall treat this circumstance as an indicator that the carrying amount of the ROU asset may not be recoverable.

At the end of the first quarter ended March 31, 2020, the Company was informed by EVA, its sublease tenant at the time, that EVA would not be in a position to pay future sublease rental payments and intended to exit the sublease. Given the uncertainty of the sublease tenant’s ability to pay the remaining sublease rental payments, the Company determined the carrying amounts of the ROU asset and leasehold improvements associated with the 1020 Marsh Facility  may not be recoverable. Accordingly, the Company performed a recoverability test, using an undiscounted cash flow analysis as of March 31, 2020. Based on the undiscounted cash flow analysis, the Company determined that the ROU and leasehold improvement assets had net carrying values that exceeded their estimated undiscounted future cash flows. The Company then measured the impairment of the asset group using a discounted cash flow analysis of the estimated future sublease payments to be received from an expected sublessee. In determining the fair value of the asset group, the Company utilized current real estate market rates, time needed to sublet the building and estimated a discount rate of 9.5%. As a result of the impairment analysis, the Company recognized an impairment charge against its ROU asset of and leasehold improvement assets of $2.4 million and $0.5 million, respectively, for the quarter ended March 31, 2020.

At the end of the third quarter ended September 30, 2020, the Company continued to evaluate the estimates used in the valuation used in the first quarter of 2020. Given the continued uncertainty due to the COVID-19 shut down and the significant negative impact to the real estate market as of the end of the third quarter, the Company determined the carrying amounts of the ROU asset and leasehold improvements associated with the 1020 Marsh Facility may not be recoverable. Accordingly, the Company performed a recoverability test, using an undiscounted cash flow analysis as of September 30, 2020. Based on the undiscounted cash flow analysis, the Company determined that the ROU and leasehold improvement assets had net carrying values that exceeded their estimated undiscounted future cash flows. The Company then measured the impairment of the asset group using a discounted cash flow analysis of the estimated future sublease payments to be received from an expected sublessee as the Company is currently marketing the 1020 Marsh Facility location for subletting. In determining the fair value of the asset group, the Company utilized current real estate market estimated rates, time needed to sublet the building and estimated a discount rate of 9.5%. As a result of the impairment analysis, the Company recognized an impairment charge against its ROU asset and leasehold improvement assets of $2.4 million and $0.5 million, respectively, for the quarter ended September 30, 2020.

A total of $5.8 million was reported as an impairment loss on the Company’s long-lived asset balances within the statement of operations for the year ended December 31, 2020.

In June 2021, the Company entered into a sublease arrangement with Grail, Inc. ("Subtenant") to occupy all of the approximately 34,464 rentable square feet of office space at the 1020 Marsh Facility. The landlord consent was received and final agreement was signed in July 2021. The term of the sublease commenced on  August 1, 2021 and will continue through October 31, 2024. Aggregate base rent due to the Company under the sublease agreement is approximately $7.65 million.

Fair Value of Financial Instruments, Policy [Policy Text Block]

Fair Value of Financial Instruments

The carrying value of the Company’s cash and cash equivalents, restricted cash, accounts payable and accrued liabilities approximate fair value due to the short-term nature of these items.

Fair value is defined as the exchange price that would be received for an asset or an exit price paid to transfer a liability in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs.

The fair value hierarchy defines a three-level valuation hierarchy for disclosure of fair value measurements as follows:

Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities; 

Level 2 Inputs other than quoted prices included within Level 1 that are observable, unadjusted quoted prices in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the related assets or liabilities; and 

Level 3 Unobservable inputs that are supported by little or no market activity for the related assets or liabilities.

The categorization of a financial instrument within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

The Company’s financial instruments consist of Level 1 assets as of December 31, 2021 and 2020.  Level 1 securities are comprised of highly liquid money market funds.

Preclinical and Clinical Trial Accruals

The Company’s clinical trial accruals are based on estimates of patient enrollment and related costs at clinical investigator sites as well as estimates for the services received and efforts expended pursuant to contracts with multiple research institutions and CROs that conduct and manage clinical trials on the Company’s behalf.

The Company estimates preclinical and clinical trial expenses based on the services performed, pursuant to contracts with research institutions and CROs that conduct and manage preclinical studies and clinical trials on its behalf. In accruing service fees, the Company estimates the time period over which services will be performed and the level of patient enrollment and activity expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, the Company will adjust the accrual accordingly. Payments made to third parties under these arrangements in advance of the receipt of the related services are recorded as prepaid expenses until the services are rendered.

Research and Development Expense, Policy [Policy Text Block]

Research and Development

Research and development costs are charged to operations as incurred. Research and development costs include, but are not limited to, payroll and personnel expenses, laboratory supplies, consulting costs, external research and development expenses and allocated overhead, including rent, equipment depreciation, and utilities. Costs to acquire technologies to be used in research and development that have not reached technological feasibility and have no alternative future use are expensed to research and development costs when incurred.

Income Tax, Policy [Policy Text Block]

Income Taxes

The Company accounts for income taxes under the asset and liability approach. Under this method, deferred tax assets and liabilities are determined based on the difference between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to affect taxable income. Valuation allowances are established when necessary to reduce deferred tax assets to the amounts expected to be realized.

The Company assesses all material positions taken in any income tax return, including all significant uncertain positions, in all tax years that are still subject to assessment or challenge by relevant taxing authorities. Assessing an uncertain tax position begins with the initial determination of the position’s sustainability and is measured at the largest amount of benefit that is more than likely to be realized upon ultimate settlement. As of each balance sheet date, unresolved uncertain tax positions must be reassessed, and the Company will determine whether (i) the factors underlying the sustainability assertion have changed and (ii) the amount of the recognized tax benefit is still appropriate. The recognition and measurement of tax benefits requires significant judgment. Judgments concerning the recognition and measurement of a tax benefit might change as new information becomes available.

Compensation Related Costs, Policy [Policy Text Block]

Stock-Based Compensation

For stock options granted to employees, the Company recognizes compensation expense for all stock-based awards based on the grant-date estimated fair value. The value of the portion of the award that is ultimately expected to vest is recognized as expense ratably over the requisite service period. The fair value of stock options is determined using the Black-Scholes option pricing model. The determination of fair value for stock-based awards on the date of grant using an option pricing model requires management to make certain assumptions regarding a number of complex and subjective variables.

Stock-based compensation expense related to stock options granted to nonemployees is recognized based on the fair value of the stock options, determined using the Black-Scholes option pricing model, as they are earned. The awards generally vest over the time period the Company expects to receive services from the nonemployee.

Earnings Per Share, Policy [Policy Text Block]

Net Loss per Share of Common Stock

Basic net loss per common share is calculated by dividing the net loss attributable to common stockholders by the weighted-average number of common shares outstanding during the period, without consideration for potentially dilutive securities. Diluted net loss per share is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common shares and potentially dilutive securities outstanding for the period. For purposes of the diluted net loss per share calculation, stock options and restricted stock units are considered to be potentially dilutive securities. Because the Company has reported a net loss for the years ended December 31, 2021 and 2020, diluted net loss per common share is the same as basic net loss per common share for those periods.

Collaborative Arrangement, Accounting Policy [Policy Text Block]

Collaborative Arrangements

The Company records the elements of its collaboration agreements that represent joint operating activities in accordance with ASC Topic 808, Collaborative Arrangements (ASC 808). Accordingly, the elements of the collaboration agreements that represent activities in which both parties are active participants and to which both parties are exposed to the significant risks and rewards that are dependent on the commercial success of the activities are recorded as collaborative arrangements. The Company considers the guidance in ASC 606-10-15, Revenue from Contracts with Customers – Scope and Scope Exceptions, in determining the appropriate treatment for the transactions between the Company and its collaborative partner and the transactions between the Company and third parties. Generally, the classification of transactions under the collaborative arrangements is determined based on the nature and contractual terms of the arrangement along with the nature of the operations of the participants.  Currently, we have one collaboration agreement with 3D Medicines, see Note 5 for further discussion.

Revenue [Policy Text Block]

Revenue Recognition

The Company’s sole source of revenue for 2021 and 2020 has been generated through its collaboration and license agreement. The Company’s collaboration and license agreements frequently contain multiple elements including (i) intellectual property licenses, and (ii) research and development services. Consideration received under these arrangements may include upfront payments, research and development funding, cost reimbursements, milestone payments, payments for product sales and royalty payments. The Company’s customer includes 3D Medicines.

The Company follows ASC 606, Revenue from Contracts with Customers (ASC 606) for recognition of its collaboration and license agreements. Under ASC 606, revenue is recognized when a customer obtains control of promised goods or services. The amount of revenue recognized reflects the consideration that the Company expects to be entitled to receive in exchange for goods or services and excludes sales incentives and amounts collected on behalf of third parties. The Company analyzes the nature of these performance obligations in the context of individual agreements in order to assess the distinct performance obligations.

The Company applies the following five-step model to recognize revenue: (i) identification of the promised goods or services in the contract; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue when (or as) the Company satisfies each performance obligation.

i) Identify the contract with a customer. The Company considers the terms and conditions of its agreements to identify contracts within the scope of ASC 606. The Company concludes it has a contract with a customer when the contract is approved, each party's rights regarding the goods and services to be transferred can be identified, the payment terms for the goods and services can be identified, it has been determined that the customer has the ability and intent to pay and the contract has commercial substance. The Company uses judgment in determining the customer's ability and intent to pay, which is based upon factors including the customer's historical payment experience or, for new customers, credit and financial information pertaining to the customers.

ii) Identify the performance obligations in the contract. Performance obligations in the agreements are identified based on the goods and services that will be transferred to the customer that are both capable of being distinct, whereby the customer can benefit from the service either on its own or together with other resources that are readily available from third parties or from the Company, and are distinct in the context of the contract, whereby the transfer of the services is separately identifiable from other promises in the contract. The Company’s performance obligations generally consist of intellectual property licenses and research and development services with respect to license and service agreements, and the manufacture and supply of product for product sales agreements.

iii) Determine the transaction price. The Company determines the transaction price based on the consideration to which the Company expects to be entitled in exchange for transferring goods and services to the customer. In determining the transaction price, any variable consideration would be considered, to the extent applicable, if, in the Company’s judgment, it is probable that a significant future reversal of cumulative revenue under the contract will not occur. In accordance with the royalty exception under ASC 606 for licenses of intellectual property, the transaction price excludes future royalty payments to be received from the Company’s customers. None of the Company’s revenue generating contracts contain consideration payable to its customer or a significant financing component.

iv) Allocate the transaction price to performance obligations in the contract. If the contract contains a single performance obligation, the entire transaction price is allocated to that performance obligation. Contracts that contain multiple performance obligations require an allocation of the transaction price to each performance obligation based on a relative standalone selling price.

v) Recognize revenue when or as we satisfy a performance obligation. Revenue is recognized at the time the related performance obligation is satisfied by transferring the promised goods or services to a customer. The Company recognizes revenue when control of the goods or services is transferred to the customers for an amount that reflects the consideration that the Company expect to receive in exchange for those goods or services.

Performance Obligations.

The following is a general description of principal goods and services from which the Company generates revenue.

License to intellectual property

The Company generates revenue from licensing its intellectual property including know-how and development and commercialization rights. The license provides a customer with the right to further research, develop and commercialize internally-discovered or collaborated drug candidates, or the right to use batiraxcept to further research, develop and commercialize customer drug candidates. The consideration the Company receives is in the form of nonrefundable upfront consideration related to the functional intellectual property licenses and is recognized when the Company transfers such license to the customer unless the license is combined with other goods or services into one performance obligation, in which case the revenue is recognized over a period of time based on the estimated pattern in which the Company satisfies the combined performance obligation. The Company’s licensing agreements are generally cancelable. 

Research and development services

The Company generates revenue from research and development services it provides to its customers and primarily includes clinical trials, and assistance during regulatory approval application process. Revenue associated with these services is recognized based on the Company’s estimate of total consideration to be received for such services and the pattern in which the Company perform the services. The pattern of performance is generally determined to be the amount of incurred costs related to the service portion of the contract with the customer as a percentage of total expected costs associated with the service portion of the contract.

Contracts with Multiple Performance Obligations.

Most of the Company’s collaboration and license agreements with customers contain multiple promised goods or services. Based on the characteristics of the promised goods and services the Company analyzes whether they are separate or combined performance obligations. The transaction price is allocated to the separate performance obligations on a relative standalone selling price basis. The estimated standalone selling price is based on the adjusted market assessment approach including estimated present value of future cash flows and cost-plus margin approach, taking into consideration the type of services, estimates of hourly market rates, and stage of the development.

Variable Consideration.

The Company’s contracts with customers primarily include two types of variable consideration: (i) development and regulatory milestone payments, which are due to the Company upon achievement of specific development and regulatory milestones and (ii) one-time sales-based payments and sales-based royalties associated with licensed intellectual property.

Due to uncertainty associated with achievement of the development and regulatory milestones, the related milestone payments are excluded from the contract consideration and the corresponding revenue is not recognized until the Company concludes it is probable that reversal of such milestone revenue will not occur.  As part of the Company’s evaluation of the constraint, the Company considers numerous factors, including whether the achievement of the milestone is outside of the Company’s control, contingent upon regulatory approval or dependent on licensee efforts.

Product sales-based royalties under licensed intellectual property and one-time payments are accounted for under the royalty exception. The Company recognizes revenue for sales-based royalties under licensed intellectual property and one-time payments at the later of when the sales occur or the performance obligation is satisfied or partially satisfied.

The transaction price is reevaluated each reporting period and as uncertain events are resolved or other changes in circumstances occur.

New Accounting Pronouncements, Policy [Policy Text Block]

Recent Accounting Pronouncements

From time to time, new accounting pronouncements are issued by the Financial Accounting Standards Board, or FASB, or other standard setting bodies and adopted by us as of the specified effective date. Unless otherwise discussed, the impact of recently issued standards that are not yet effective is not expected to have a material impact on the Company’s financial position or results of operations upon adoption.

In December 2019, the FASB issued ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. This guidance is intended to improve consistent application and simplify the accounting for income taxes. This ASU removes certain exceptions to the general principles in Topic 740 and clarifies and amends existing guidance. This standard is effective for annual reporting periods beginning after December 15, 2020, including interim reporting periods within those annual reporting periods, with early adoption permitted. The Company adopted this guidance as of January 1, 2021, the adoption did not have a material impact on the Company’s consolidated financial statements.

In August 2020, the FASB issued ASU No. 2020-06, Debt with Conversion and Other Options (Subtopic 470-20) and Derivatives and Hedging-Contracts in Entity's Own Equity (Subtopic 815-40)-Accounting For Convertible Instruments and Contracts in an Entity's Own Equity. The ASU simplifies accounting for convertible instruments by removing major separation models required under current GAAP. Consequently, more convertible debt instruments will be reported as a single liability instrument with no separate accounting for embedded conversion features. The ASU removes certain settlement conditions that are required for equity contracts to qualify for the derivative scope exception, which will permit more equity contracts to qualify for it. The ASU also simplifies the diluted net income per share calculation in certain areas. The new guidance is effective for annual and interim periods beginning after December 15, 2021, and early adoption is permitted for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. The Company adopted this guidance as of January 1, 2021, the adoption did not have a material impact on the Company’s consolidated financial statements.