Recently Issued Accounting Standards	3 Months Ended
	Jul. 31, 2022
Accounting Changes and Error Corrections [Abstract]
Recently Issued Accounting Standards	In March 2022, the U.S. Securities and Exchange Commission (the “SEC”) issued the proposed rule under SEC Release No. 33-11042, The Enhancement and Standardization of Climate-Related Disclosures for Investors, to enhance and standardize the climate-related disclosures provided by public companies. This update will require the disclosure of greenhouse gas emissions, including Scope 1 and Scope 2 emissions, which will be subject to third-party assurance, as well as climate-related targets and goals, and how the Board of Directors (the “Board”) and management oversee climate-related risks. As of July 31, 2022, these amendments were not adopted by the SEC; however, we anticipate that the adoption of these amendments will have a material impact on our financial statements and disclosures.