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Note 2 - Investments - Assets and Liabilities (Details) - EAM Trust [Member] - USD ($) $ in Thousands | Oct. 31, 2019 | Apr. 30, 2019
--- | --- | ---
EAM's total assets |  | $ 61,701 | $ 60,683
EAM's total liabilities (1) | [1] | (4,723) | (3,547)
EAM's total equity |  | $ 56,978 | $ 57,136
[1] | At October 31, 2019 and April 30, 2019, EAM's total liabilities included a payable to VLI for its accrued non-voting revenues interest and non-voting profits interest of $3,028,000 and $2,420,000, respectively.

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