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Schedule of Investments (Details) (Parenthethical) - USD ($)
Sep. 30, 2022
Dec. 31, 2021
Short term investment $ 2,588,400 [1] $ 2,547,100 [2]
Membership [Member]    
Short term investment 933,300 905,700
Activity Stock Due [Member]    
Short term investment $ 1,655,100 $ 1,641,400
[1] Includes $933,300 of Membership stock and $1,655,100 of Activity stock due to short-term borrowings and letters of credit.
[2] Includes $905,700 of Membership stock and $1,641,400 of Activity stock due to short-term advances and letters of credit.