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Note 2 - Investments - Components of EAM's Investment Management Operations (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2019 | Oct. 31, 2018
Revenues |  | $ 10,080,000 | $ 9,051,000 | $ 19,697,000 | $ 18,022,000
Value Line’s non-voting revenues interest |  | 2,768,000 | 2,095,000 | 5,356,000 | 4,063,000
EAM's net income (1) |  | 4,211,000 | 3,302,000 | 7,901,000 | 6,406,000
EAM Trust [Member] |  |  |  |  |
Other income |  | 5,000 | (27,000) | 58,000 | 44,000
Investment management fee waivers and reimbursements |  | 109,000 | 110,000 | 218,000 | 221,000
12b-1 fee waivers |  | 166,000 | 175,000 | 339,000 | 334,000
Value Line’s non-voting revenues interest |  | 2,768,000 | 2,095,000 | 5,356,000 | 4,063,000
EAM's net income (1) | [1] | 580,000 | 578,000 | 1,146,000 | 1,184,000
EAM Trust [Member] | Investment Advice [Member] |  |  |  |  |
Revenues |  | 5,463,000 | 4,181,000 | 10,610,000 | 8,290,000
EAM Trust [Member] | Distribution and Shareholder Service [Member] |  |  |  |  |
Revenues |  | $ 2,086,000 | $ 1,727,000 | $ 4,065,000 | $ 3,431,000
[1] | Represents EAM's net income, after giving effect to Value Line's non-voting revenues interest, but before distributions to voting profits interest holders and to the Company in respect of its 50% non-voting profits interest.

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