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Note 10 - Disclosure of Credit Risk of Financial Instruments With Off-balance Sheet Risk | 12 Months Ended
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Apr. 30, 2023
Notes to Financial Statements |
Concentration Risk of Financial Instruments with Off-balance Sheet Risk [Text Block] |
Note 10 - Disclosure of Credit Risk of Financial Instruments with Off-Balance Sheet Risk:
Other than EAM and the Value Line Funds as explained in Note 3 - Related Party Transactions, a single customer accounted for a significant portion of the Company's sales in fiscal 2023, 2022 or 2021, and its accounts receivable as of April 30, 2023 or 2022. During the twelve months ended April 30, 2023, 2022 and 2021, 33.9%, 33.0% and 31.6%, respectively, of total publishing revenues were derived from a single customer as explained in Note 16 - Concentration.

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- Definition The entire disclosure for concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact related to financial instruments with off-balance sheet risk. + References No definition available. + Details
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