v3.26.1
STATEMENTS OF ASSETS AND LIABILITIES (UNAUDITED) (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Statement of Financial Position [Abstract]    
Cost of investment in ZEC, at fair value $ 47,616 $ 47,911
Common shares authorized Unlimited Unlimited
Stock, par value $ 0 $ 0