Organization and Basis of Presentation	12 Months Ended
Apr. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Basis of Presentation	Organization and Basis of Presentation Background Champions Oncology, Inc. ("we", "our", or the “Company”), 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 (the "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 Biotechnology U.K., Limited, Champions Oncology S.R.L., and Corellia AI, Inc. For the years ended April 30, 2026 and 2025, there were no revenues earned by these subsidiaries. Basis of Presentation The accompanying 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 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 statements 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 8.

Organization and Basis of Presentation

12 Months Ended

Apr. 30, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Background

Champions Oncology, Inc. ("we", "our", or the “Company”), 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 (the "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 Biotechnology U.K., Limited, Champions Oncology S.R.L., and Corellia AI, Inc. For the years ended April 30, 2026 and 2025, there were no revenues earned by these subsidiaries.

Basis of Presentation

The accompanying 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 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 statements 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 8.