v3.26.1
Note 4 - Investments - Components of EAM's Investment Management Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Jan. 31, 2026
Jan. 31, 2025
Jan. 31, 2026
Apr. 30, 2026
Apr. 30, 2025
Apr. 30, 2024
Revenues       $ 33,447 $ 35,079 $ 37,487
Non-voting revenues interest in EAM $ 16,648 $ 16,183 $ 11,900 16,648 16,183 11,900
EAM's net income       21,630 20,686 19,016
EAM Trust [Member]            
Other income       601 476 433
Investment management fee waivers and reimbursements       136 180 288
12b-1 fee waivers       49 90 94
Non-voting revenues interest in EAM       16,648 16,183 11,900
EAM's net income [1]       4,644 4,270 2,764
EAM Trust [Member] | Investment Advice [Member]            
Revenues       30,758 31,387 24,383
EAM Trust [Member] | Distribution and Shareholder Service [Member]            
Revenues       $ 5,774 $ 7,788 $ 6,584
[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.