Note 1 - Formation and Business of the Company	12 Months Ended
Dec. 31, 2021
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. Formation and Business of the Company Aravive, Inc. (“Aravive” or the “Company”) was incorporated on December 10, 2008 in the State of Delaware. Aravive Biologics, Inc. (“Aravive Biologics”) our wholly owned subsidiary was incorporated in 2007. Aravive is a clinical-stage biopharmaceutical company developing treatments designed to halt the progression of life-threatening diseases, including cancer and fibrosis. The Company’s lead product candidate, batiraxcept (formerly AVB-500), is an ultrahigh-affinity, decoy protein that targets the GAS6-AXL signaling pathway. By capturing serum GAS6, batiraxcept starves the AXL pathway of its signal, potentially halting the biological programming that promotes disease progression. AXL receptor signaling plays an important role in multiple types of malignancies by promoting metastasis, cancer cell survival, resistance to treatments, and immune suppression. The Company’s current development program benefits from the availability of a proprietary serum-based biomarker that accelerated batiraxcept drug development by allowing the Company to select a pharmacologically active dose and may potentially identify the cancer patients that have the best chance of responding to batiraxcept. In July 2016, Aravive Biologics was approved for a $20.0 million Product Development Award from the Cancer Prevention and Research Institute of Texas (“CPRIT Grant”). The CPRIT Grant was expected to allow Aravive Biologics to develop the product candidate referenced above through clinical trials. The CPRIT Grant was effective as of June 1, 2016 and terminated on November 30, 2019. The Company has received all $20 million of the grant proceeds and have incurred all of the grant award proceeds by the termination date. Aravive Biologics’ royalty and other obligations, including its obligation to repay the disbursed grant proceeds under certain circumstances, survive the termination of the agreement. The CPRIT Grant was subject to customary CPRIT funding conditions including a matching funds requirement where Aravive Biologics matched 50% of funding from the CPRIT Grant. Consequently, Aravive Biologics was required to raise $10.0 million in matching funds over the three-year project. Aravive Biologics raised all its required $10.0 million in matching funds. Aravive Biologics’ award from CPRIT requires it to pay CPRIT a portion of its revenues from sales of certain products, or received from its licensees or sublicensees, at tiered percentages of revenue in the low- to mid-single digits until the aggregate amount of such payments equals 400% of the grant award proceeds, and thereafter at a rate of less than one percent for as long as Aravive Biologics maintains government exclusivity. In addition, the grant contract also contains a provision that provides for repayment to CPRIT of the full amount of the grant proceeds under certain specified circumstances involving relocation of Aravive Biologics’ principal place of business outside Texas. In the Company’s completed Phase 1 clinical trial in healthy volunteers with its lead product candidate, batiraxcept, the Company demonstrated proof of mechanism for batiraxcept in neutralizing GAS6. Importantly, batiraxcept had a favorable safety profile preclinically and in the first in human trial and Phase 1b clinical trial in cancer patients. In August 2018, the U.S. Food and Drug Administration (“FDA”) designated as a Fast Track development program the investigation of batiraxcept for platinum-resistant recurrent ovarian cancer ("PROC"). In December 2018, the Company initiated a Phase 1b clinical trial of batiraxcept combined with standard of care therapies in patients with platinum resistant ovarian cancer, or PROC, for which it reported results in July 2020. In April 2020, the Company entered into a license and collaboration agreement with WuXi Biologics (Hong Kong) Limited, the objective of which is to identify and develop novel high-affinity bispecific antibodies against CCN2, also known as connective tissue growth factor ("CTGF"), implicated in cancer and fibrosis, and identified from a similar target discovery screen that identified the significance of the AXL/GAS6 pathway in cancer. The goal is to generate a best-in-class therapeutic targeting desmoplasia and tumor growth for initial investigation in the clinic in 2023. In November 2020, the Company entered into a collaboration and license agreement with 3D Medicines Inc. ("3D Medicines") (the “Agreement or the 3D Medicine Agreement”), whereby the Company granted 3D Medicines an exclusive license to develop and commercialize products that contain batiraxcept as the sole drug substance for the diagnosis, treatment or prevention of human oncological diseases, in mainland China, Taiwan, Hong Kong and Macau (the "Territory") for an upfront cash payment of $12 million. During the second quarter of 2021, the Company received a $6 million development milestone from 3D Medicines, for completing our first clinical milestone with 3D Medicines, dosing the first patient in its Phase 3 trial of batiraxcept in PROC.. Based upon this event, the Company received a $6 million cash payment during the second quarter of 2021. In August 2021, the Company received a $3 million development milestone from 3D Medicines based on the Center for Drug Evaluation ("CDE") of the China National Medical Products Administration ("NMPA") approval of the Investigational New Drug application ("IND") submitted by 3D Medicines to participate in the Company’s international batiraxcept Phase 3 PROC clinical trial. As the Company advances its clinical programs, the Company is in close contact with its clinical research organizations ("CROs") and clinical sites and is continually assessing the impact of COVID-19 on its planned trials and current timelines and costs. The Company has experienced delays in patient enrollment due to the COVID-19 pandemic. If the COVID-19 pandemic continues and persists for an extended period of time or increases in severity, the Company could experience significant disruptions to its clinical development timelines and, if the Company experiences delays in patient enrollment and deems it necessary or advisable to improve patient recruitment by, among other things, opening additional clinical sites, the Company could incur increased clinical program expenses. Any such disruptions or delays would, and any such increased clinical program expenses could, adversely affect the Company’s business, financial condition, results of operations and growth prospects. As consideration for the rights granted as part of a license agreement with Stanford University, Aravive Biologics is obligated to pay yearly license fees and milestone payments, and a royalty based on net sales of products covered by the patent-related rights. More specifically, Aravive Biologics is obligated to pay Stanford University (i) annual license payments (ii) milestone payments of up to an aggregate of $1,000,000 upon achievement of clinical and regulatory milestones, and (iii) royalties equal to a percentage (in the low single digits) of net sales of licensed products; provided that the annual license payments made will offset (and be credited against) any royalties due in such license year. In the event of a sublicense to a third party of any rights based on the patents that are solely owned by Stanford University, Aravive Biologics is obligated to pay royalties to Stanford University equal to a percentage of what Aravive Biologics would have been required to pay to Stanford University had it sold the products under sublicense itself. In addition, in such event it is required to pay to Stanford University a percent of sublicensing income. In the event of a termination, Aravive Biologics will be obligated to pay all amounts that accrued prior to such termination.

Note 1 - Formation and Business of the Company

12 Months Ended

Dec. 31, 2021

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

1. Formation and Business of the Company

Aravive, Inc. (“Aravive” or the “Company”) was incorporated on December 10, 2008 in the State of Delaware. Aravive Biologics, Inc. (“Aravive Biologics”) our wholly owned subsidiary was incorporated in 2007. Aravive is a clinical-stage biopharmaceutical company developing treatments designed to halt the progression of life-threatening diseases, including cancer and fibrosis.

The Company’s lead product candidate, batiraxcept (formerly AVB-500), is an ultrahigh-affinity, decoy protein that targets the GAS6-AXL signaling pathway. By capturing serum GAS6, batiraxcept starves the AXL pathway of its signal, potentially halting the biological programming that promotes disease progression. AXL receptor signaling plays an important role in multiple types of malignancies by promoting metastasis, cancer cell survival, resistance to treatments, and immune suppression.

The Company’s current development program benefits from the availability of a proprietary serum-based biomarker that accelerated batiraxcept drug development by allowing the Company to select a pharmacologically active dose and may potentially identify the cancer patients that have the best chance of responding to batiraxcept.

In July 2016, Aravive Biologics was approved for a $20.0 million Product Development Award from the Cancer Prevention and Research Institute of Texas (“CPRIT Grant”). The CPRIT Grant was expected to allow Aravive Biologics to develop the product candidate referenced above through clinical trials. The CPRIT Grant was effective as of June 1, 2016 and terminated on November 30, 2019. The Company has received all $20 million of the grant proceeds and have incurred all of the grant award proceeds by the termination date. Aravive Biologics’ royalty and other obligations, including its obligation to repay the disbursed grant proceeds under certain circumstances, survive the termination of the agreement. The CPRIT Grant was subject to customary CPRIT funding conditions including a matching funds requirement where Aravive Biologics matched 50% of funding from the CPRIT Grant. Consequently, Aravive Biologics was required to raise $10.0 million in matching funds over the three-year project. Aravive Biologics raised all its required $10.0 million in matching funds.

Aravive Biologics’ award from CPRIT requires it to pay CPRIT a portion of its revenues from sales of certain products, or received from its licensees or sublicensees, at tiered percentages of revenue in the low- to mid-single digits until the aggregate amount of such payments equals 400% of the grant award proceeds, and thereafter at a rate of less than one percent for as long as Aravive Biologics maintains government exclusivity. In addition, the grant contract also contains a provision that provides for repayment to CPRIT of the full amount of the grant proceeds under certain specified circumstances involving relocation of Aravive Biologics’ principal place of business outside Texas.

In the Company’s completed Phase 1 clinical trial in healthy volunteers with its lead product candidate, batiraxcept, the Company demonstrated proof of mechanism for batiraxcept in neutralizing GAS6. Importantly, batiraxcept had a favorable safety profile preclinically and in the first in human trial and Phase 1b clinical trial in cancer patients.

In August 2018, the U.S. Food and Drug Administration (“FDA”) designated as a Fast Track development program the investigation of batiraxcept for platinum-resistant recurrent ovarian cancer ("PROC").

In December 2018, the Company initiated a Phase 1b clinical trial of batiraxcept combined with standard of care therapies in patients with platinum resistant ovarian cancer, or PROC, for which it reported results in July 2020.

In April 2020, the Company entered into a license and collaboration agreement with WuXi Biologics (Hong Kong) Limited, the objective of which is to identify and develop novel high-affinity bispecific antibodies against CCN2, also known as connective tissue growth factor ("CTGF"), implicated in cancer and fibrosis, and identified from a similar target discovery screen that identified the significance of the AXL/GAS6 pathway in cancer. The goal is to generate a best-in-class therapeutic targeting desmoplasia and tumor growth for initial investigation in the clinic in 2023.

In November 2020, the Company entered into a collaboration and license agreement with 3D Medicines Inc. ("3D Medicines") (the “Agreement or the 3D Medicine Agreement”), whereby the Company granted 3D Medicines an exclusive license to develop and commercialize products that contain batiraxcept as the sole drug substance for the diagnosis, treatment or prevention of human oncological diseases, in mainland China, Taiwan, Hong Kong and Macau (the "Territory") for an upfront cash payment of $12 million. During the second quarter of 2021, the Company received a $6 million development milestone from 3D Medicines, for completing our first clinical milestone with 3D Medicines, dosing the first patient in its Phase 3 trial of batiraxcept in PROC.. Based upon this event, the Company received a $6 million cash payment during the second quarter of 2021. In August 2021, the Company received a $3 million development milestone from 3D Medicines based on the Center for Drug Evaluation ("CDE") of the China National Medical Products Administration ("NMPA") approval of the Investigational New Drug application ("IND") submitted by 3D Medicines to participate in the Company’s international batiraxcept Phase 3 PROC clinical trial.

As the Company advances its clinical programs, the Company is in close contact with its clinical research organizations ("CROs") and clinical sites and is continually assessing the impact of COVID-19 on its planned trials and current timelines and costs. The Company has experienced delays in patient enrollment due to the COVID-19 pandemic. If the COVID-19 pandemic continues and persists for an extended period of time or increases in severity, the Company could experience significant disruptions to its clinical development timelines and, if the Company experiences delays in patient enrollment and deems it necessary or advisable to improve patient recruitment by, among other things, opening additional clinical sites, the Company could incur increased clinical program expenses. Any such disruptions or delays would, and any such increased clinical program expenses could, adversely affect the Company’s business, financial condition, results of operations and growth prospects.

As consideration for the rights granted as part of a license agreement with Stanford University, Aravive Biologics is obligated to pay yearly license fees and milestone payments, and a royalty based on net sales of products covered by the patent-related rights. More specifically, Aravive Biologics is obligated to pay Stanford University (i) annual license payments (ii) milestone payments of up to an aggregate of $1,000,000 upon achievement of clinical and regulatory milestones, and (iii) royalties equal to a percentage (in the low single digits) of net sales of licensed products; provided that the annual license payments made will offset (and be credited against) any royalties due in such license year. In the event of a sublicense to a third party of any rights based on the patents that are solely owned by Stanford University, Aravive Biologics is obligated to pay royalties to Stanford University equal to a percentage of what Aravive Biologics would have been required to pay to Stanford University had it sold the products under sublicense itself. In addition, in such event it is required to pay to Stanford University a percent of sublicensing income. In the event of a termination, Aravive Biologics will be obligated to pay all amounts that accrued prior to such termination.