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Schedule of Investments (Details) (Parenthethical) - USD ($)
Jun. 30, 2023
Dec. 31, 2022
Short term investment $ 2,677,100 [1] $ 2,600,300 [2]
Membership [Member]    
Short term investment 84,800 938,500
Activity Stock Due [Member]    
Short term investment $ 2,592,300 $ 1,661,800
[1] Includes $84,800 of Membership stock and $2,592,300 of Activity stock attributable to short-term borrowings and letters of credit.
[2] Includes $938,500 of Membership stock and $1,661,800 of Activity stock attributable to short-term borrowings and letters of credit.