Inventories (Tables)

12 Months Ended

Apr. 30, 2019

Inventory Disclosure [Abstract]

Components Of Inventories

The components of inventories were:

	APRIL 30
(in thousands)	2019			2018
Raw materials	$	46,054		$	41,728
Work-in-process	43,794			44,905
Finished goods	34,873			34,111
Total FIFO inventories	124,721			120,744
Reserve to adjust inventories to LIFO value	(16,193		)	(15,943		)
Total inventories	$	108,528		$	104,801