Note 4 - Inventories (Tables)

12 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	As of:
	March 31,		March 31,
	2023		2022
Finished products	$	613,622	$	385,681
In process		75,123		23,652
Raw materials and supplies		284,593		165,491
		973,338		574,824
Less excess of FIFO cost over LIFO cost		264,527		164,493
Total inventories	$	708,811	$	410,331