Note 4 - Inventories (Tables)

9 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	As of:
	December 31,		January 1,		March 31,
	2022		2022		2022
Finished products	$	738,331	$	515,225		385,681
In process		67,380		26,468		23,652
Raw materials and supplies		218,572		99,611		165,491
		1,024,283		641,304		574,824
Less excess of FIFO cost over LIFO cost		243,826		159,326		164,493
Inventories	$	780,457	$	481,978	$	410,331