v3.26.1
INVESTMENTS AND FAIR VALUE MEASUREMENTS - DERIVATIVE INSTRUMENT (Details) - USD ($)
$ in Thousands
Apr. 30, 2026
Apr. 30, 2025
INVESTMENTS AND FAIR VALUE MEASUREMENTS    
Total, cost $ 10,690 $ 6,045
Total, Unrealized Gains (Losses) 1,185 3,709
Total, Fair Value 11,875 9,754
Exchange Traded Options [Member]    
INVESTMENTS AND FAIR VALUE MEASUREMENTS    
Cost 10,690 6,045
Unrealized Gains (Losses) 1,185 3,709
Derivative instruments $ 11,875 $ 9,754