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Capital Share Transactions (Tables)
 12 Months Ended
Dec. 31, 2023
Stockholders' Equity Note [Abstract]  
Schedule of Stockholders Equity [Table Text Block] Share activity is as follows:
    Shares     Amount  
Shares issued     2,000  (a)   $ 100,000  
Shares redeemed     —       —  
Net increase     2,000     $ 100,000  
(a)Van Eck Associates Corporation is the sole shareholder as of December 31, 2023.