Note 7 - Fair Value Measurements (Tables)

12 Months Ended

Mar. 31, 2022

Notes Tables

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

	Quoted Prices
	in Active			Significant
	Markets for			Other		Significant
	Identical			Observable		Unobservable
	Assets			Inputs		Inputs
	(Level 1)			(Level 2)		(Level 3)		Total
Commodity futures – financial liabilities, net	$	(10,188,780	)	$	—	$	—	$	(10,188,780	)
Total	$	(10,188,780	)	$	—	$	—	$	(10,188,780	)

	Quoted Prices
	in Active			Significant
	Markets for			Other		Significant
	Identical			Observable		Unobservable
	Assets			Inputs		Inputs
	(Level 1)			(Level 2)		(Level 3)		Total
Commodity futures – financial liabilities, net	$	(7,407,400	)	$	—	$	—	$	(7,407,000	)
Total	$	(7,407,400	)	$	—	$	—	$	(7,407,000	)