Note 5 - Derivative Instruments and Hedging Activities - Offsetting of Financial Assets and Liabilities and Derivative Assets and Liabilities (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Derivative liabilities	$ 29,433,069	$ 735,475
Corn Futures Contracts [Member]
Gross amount of recognized assets	1,585,798	5,936,552
Gross amount offset, assets	0	0
Derivative asset	1,585,798	5,936,552
Available for offset, assets	1,585,798	0
Collateral, due to broker, assets	0	0
Net amount, assets	0	5,936,552
Gross amount of recognized liabilities	2,967,103
Gross amount offset, liabilities	0
Derivative liabilities	2,967,103
Futures contracts available for offset, liabilities	1,585,798
Collateral, due from broker, liabilities	1,381,305
Net amount, liabilities	0
Soybean Futures Contracts [Member]
Gross amount of recognized assets	2,520,370	2,684,851
Gross amount offset, assets	0	0
Derivative asset	2,520,370	2,684,851
Available for offset, assets	0	0
Collateral, due to broker, assets	0	675,169
Net amount, assets	2,520,370	2,009,682
Sugar Futures Contracts [Member]
Gross amount of recognized assets	911,329	1,079,226
Gross amount offset, assets	0	0
Derivative asset	911,329	1,079,226
Available for offset, assets	85,128	80,506
Collateral, due to broker, assets	0	0
Net amount, assets	826,201	998,720
Gross amount of recognized liabilities	85,128	80,506
Gross amount offset, liabilities	0	0
Derivative liabilities	85,128	80,506
Futures contracts available for offset, liabilities	85,128	80,506
Collateral, due from broker, liabilities	0	0
Net amount, liabilities	0	0
Wheat Futures Contracts [Member]
Gross amount of recognized assets	3,160,732	3,714,672
Gross amount offset, assets	0	0
Derivative asset	3,160,732	3,714,672
Available for offset, assets	3,160,732	654,969
Collateral, due to broker, assets	0	213,708
Net amount, assets	0	2,845,995
Gross amount of recognized liabilities	26,380,838	654,969
Gross amount offset, liabilities	0	0
Derivative liabilities	26,380,838	654,969
Futures contracts available for offset, liabilities	3,160,732	654,969
Collateral, due from broker, liabilities	23,220,106	0
Net amount, liabilities	0	$ 0
Bitcoin Futures Contracts [Member]
Gross amount of recognized assets	29,152
Gross amount offset, assets	0
Derivative asset	29,152
Available for offset, assets	0
Collateral, due to broker, assets	0
Net amount, assets	$ 29,152