Organization, Use of Estimates and Basis of Presentation	9 Months Ended
Jan. 31, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Use of Estimates and Basis of Presentation	Organization, Use of Estimates and Basis of Presentation Champions Oncology, Inc. (the "Company", or "we", or "our") is engaged in drug discovery and development through data-driven research strategies and innovative pharmacology, biomarker and data platforms. The Company’s TumorGraft Technology Platform (the "Platform"), a comprehensive bank of unique, well characterized "Patient Derived XenoGrafts" (PDX) models, is an approach to personalizing cancer care based upon the implantation of human tumors in immune-deficient mice. The Company provides a technology platform to pharmaceutical and biotechnology companies using proprietary TumorGraft studies, which the Company believes may be predictive of how drugs may perform in clinical settings. Utilizing the Platform, the Company offers multiple services to pharmaceutical and biotechnology companies seeking personalized approaches to drug development. By performing studies to predict the efficacy of oncology drugs, our Platform is designed to facilitate drug discovery with lower costs and increased speed of drug development as well as increased adoption of existing drugs. The Company has four operating subsidiaries: Champions Oncology (Israel), Limited, Champions Oncology U.K. Limited, Champions Oncology, S.R.L. (Italy), and Corellia A.I. Inc. ("Corellia"). For the three and nine months ended January 31, 2026 and 2025, there were no revenues earned by these subsidiaries. The Company’s foreign subsidiaries' functional currency is the U.S. dollar. Transaction gains and losses are recognized in earnings. The Company is subject to foreign exchange rate fluctuations in connection with the Company’s international operations. The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). The Company operates in one reportable business segment. The condensed consolidated financial statements include the accounts of the Company and its subsidiaries in which it holds a controlling financial interest. Intercompany transactions and accounts have been eliminated. The Company's wholly owned subsidiary, Corellia, has issued equity‑classified stock options to certain of its employees. Stock‑based compensation expense is recognized over the requisite service period, with the corresponding equity recorded as non-controlling interest in the consolidated statement of stockholders' equity. Because the options are unexercised, they do not represent an actual ownership interest, and no portion of the Company's net income or loss is attributed to non-controlling interest until the options are exercised. Refer to Note 6. These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission, or the SEC. Certain information related to the Company’s organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with GAAP has been condensed or omitted. The April 30, 2025 condensed consolidated balance sheet in the accompanying interim condensed consolidated financial statements was derived from audited consolidated financial statements. The accounting policies followed in the preparation of these unaudited condensed consolidated financial statements are consistent with those followed in the Company’s annual consolidated financial statements for the fiscal year ended April 30, 2025, as filed in the Company's Annual Report on Form 10-K with the SEC on July 23, 2025 (the "Annual Report"). In the opinion of management, these unaudited condensed consolidated financial statements contain all material adjustments necessary to fairly state our financial position, results of operations and cash flows for the periods presented and the presentations and disclosures herein are adequate when read in conjunction with the Annual Report. The results of operations for the interim periods are not necessarily indicative of the results of operations for a full fiscal year. The preparation of financial statements in conformity with GAAP 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 revenue and expenses during the reporting period. Actual results could differ from those estimates.

Champions Oncology, Inc. (the "Company", or "we", or "our") is engaged in drug discovery and development through data-driven research strategies and innovative pharmacology, biomarker and data platforms. The Company’s TumorGraft Technology Platform (the "Platform"), a comprehensive bank of unique, well characterized "Patient Derived XenoGrafts" (PDX) models, is an approach to personalizing cancer care based upon the implantation of human tumors in immune-deficient mice. The Company provides a technology platform to pharmaceutical and biotechnology companies using proprietary TumorGraft studies, which the Company believes may be predictive of how drugs may perform in clinical settings. Utilizing the Platform, the Company offers multiple services to pharmaceutical and biotechnology companies seeking personalized approaches to drug development. By performing studies to predict the efficacy of oncology drugs, our Platform is designed to facilitate drug discovery with lower costs and increased speed of drug development as well as increased adoption of existing drugs.

The Company has four operating subsidiaries: Champions Oncology (Israel), Limited, Champions Oncology U.K. Limited, Champions Oncology, S.R.L. (Italy), and Corellia A.I. Inc. ("Corellia"). For the three and nine months ended January 31, 2026 and 2025, there were no revenues earned by these subsidiaries.

The accompanying condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP"). The Company operates in one reportable business segment. The condensed consolidated financial statements include the accounts of the Company and its subsidiaries in which it holds a controlling financial interest. Intercompany transactions and accounts have been eliminated. The Company's wholly owned subsidiary, Corellia, has issued equity‑classified stock options to certain of its employees. Stock‑based compensation expense is recognized over the requisite service period, with the corresponding equity recorded as non-controlling interest in the consolidated statement of stockholders' equity. Because the options are unexercised, they do not represent an actual ownership interest, and no portion of the Company's net income or loss is attributed to non-controlling interest until the options are exercised. Refer to Note 6.

These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission, or the SEC. Certain information related to the Company’s organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with GAAP has been condensed or omitted. The April 30, 2025 condensed consolidated balance sheet in the accompanying interim condensed consolidated financial statements was derived from audited consolidated financial statements. The accounting policies followed in the preparation of these unaudited condensed consolidated financial statements are consistent with those followed in the Company’s annual consolidated financial statements for the fiscal year ended April 30, 2025, as filed in the Company's Annual Report on Form 10-K with the SEC on July 23, 2025 (the "Annual Report"). In the opinion of management, these unaudited condensed consolidated financial statements contain all material adjustments necessary to fairly state our financial position, results of operations and cash flows for the periods presented and the presentations and disclosures herein are adequate when read in conjunction with the Annual Report. The results of operations for the interim periods are not necessarily indicative of the results of operations for a full fiscal year.

The preparation of financial statements in conformity with GAAP 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 revenue and expenses during the reporting period. Actual results could differ from those estimates.