| Cover | May 15, 2024 |
| Document Type | 8-K/A |
| Amendment Flag | true |
| Amendment Description | This Amendment No. 1 on Form 8-K/A to the Current Report on Form 8-K of Heart Test Laboratories, Inc. (the “Company”), originally filed with the U.S. Securities and Exchange Commission on May 15, 2024 (the “Original Filing”), is being filed solely to clarify that as a result of the Reverse Stock Split (as defined below) (i) only the Company’s Common Stock (and not the Company’s public Warrants) will begin trading on a split-adjusted basis on The Nasdaq Capital Market anticipated to take place at the market open on May 17, 2024, and (ii) equitable adjustments corresponding to the Reverse Stock Split ratio will be made to the Company’s outstanding Warrants, including the Company’s public Warrants, as provided below. Except as described herein, no other changes have been made to the Original Filing. |
| Document Period End Date | May 15, 2024 |
| Current Fiscal Year End Date | --04-30 |
| Entity File Number | 001-41422 |
| Entity Registrant Name | Heart Test Laboratories, Inc. |
| Entity Central Index Key | 0001468492 |
| Entity Tax Identification Number | 26-1344466 |
| Entity Incorporation, State or Country Code | TX |
| Entity Address, Address Line One | 550 Reserve Street, Suite 360 |
| Entity Address, City or Town | Southlake |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 76092 |
| City Area Code | 682 |
| Local Phone Number | 237-7781 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
| Common Stock [Member] | |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | HSCS |
| Security Exchange Name | NASDAQ |
| Warrants | |
| Title of 12(b) Security | Warrants |
| Trading Symbol | HSCSW |
| Security Exchange Name | NASDAQ |
