Note I - Fair Value Measurements - Recurring Fair Value Measurements (Details) - Fair Value, Recurring [Member] - USD ($)	Sep. 30, 2022	Mar. 31, 2022	Mar. 31, 2021
Commodity futures – financial liabilities, net	$ (143,440)	$ (10,188,780)
Total	(143,440)	(10,188,780)
Fair Value, Inputs, Level 1 [Member]
Commodity futures – financial liabilities, net		(10,188,780)
Total	(143,440)	$ (10,188,780)
Fair Value, Inputs, Level 2 [Member]
Commodity futures – financial liabilities, net	0		$ 0
Total	0		0
Fair Value, Inputs, Level 3 [Member]
Commodity futures – financial liabilities, net	0		0
Total	$ 0		$ 0