| Document And Entity Information - USD ($) | 12 Months Ended | ||
| Apr. 30, 2024 | Jun. 30, 2024 | Oct. 31, 2023 | |
| Document Information [Line Items] | |||
| Entity, Registrant Name | VALUE LINE, INC. | ||
| Current Fiscal Year End Date | --04-30 | ||
| Document, Fiscal Year Focus | 2024 | ||
| Document, Fiscal Period Focus | FY | ||
| Document, Type | 10-K/A | ||
| Document, Annual Report | true | ||
| Document, Period End Date | Apr. 30, 2024 | ||
| Document, Transition Report | false | ||
| Entity, File Number | 0-11306 | ||
| Entity, Incorporation, State or Country Code | NY | ||
| Entity, Tax Identification Number | 13-3139843 | ||
| Entity, Address, Address Line One | 551 Fifth Avenue | ||
| Entity, Address, City or Town | New York | ||
| Entity, Address, State or Province | NY | ||
| Entity, Address, Postal Zip Code | 10176-0001 | ||
| City Area Code | 212 | ||
| Local Phone Number | 907-1500 | ||
| Title of 12(b) Security | Common stock, $0.10 par value per share | ||
| Trading Symbol | VALU | ||
| Security Exchange Name | NASDAQ | ||
| Entity, Well-known Seasoned Issuer | No | ||
| Entity, Voluntary Filers | No | ||
| Entity, Current Reporting Status | Yes | ||
| Entity, Interactive Data, Current | Yes | ||
| Entity, Filer Category | Non-accelerated Filer | ||
| Entity, Small Business | false | ||
| Entity, Emerging Growth Company | false | ||
| Document, Financial Statement Error Correction Flag | false | ||
| ICFR Auditor Attestation Flag | false | ||
| Entity, Shell Company | false | ||
| Entity, Public Float | $ 32,483,588 | ||
| Entity, Common Stock Shares, Outstanding | 9,418,839 | ||
| Auditor Name | Horowitz & Ullmann, P.C. | ||
| Auditor Firm ID | 921 | ||
| Auditor Location | New York, NY | ||
| Amendment Description | On July 26, 2024, Value Line, Inc. (the “Company”) filed its Annual Report on Form 10-K (the “Original Form 10-K”) for the fiscal year ended April 30, 2024 with the Securities and Exchange Commission (“SEC”). The purpose of this Amendment No. 1 (the “Amendment”) to the Original Form 10-K is to include Part I Item 1C, Cybersecurity, which was inadvertently omitted in the Original Form 10-K. No other items of the Original Form 10-K are being amended and this Amendment does not reflect any events occurring after the filing of the Original Form 10-K. Accordingly, the Amendment should be read in conjunction with the Original Form 10-K and the Company’s other filings made with the SEC subsequent to the filing of the Original Form 10-K. | ||
| Amendment Flag | true | ||
| Entity, Central Index Key | 0000717720 |
