INVENTORIES, NET (Tables)

6 Months Ended

Oct. 31, 2021

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories, which are reported at the lower of cost and net realizable value, consisted of the following:

	October 31, 2021		April 30, 2021
	(In thousands)
Raw Materials and Component Parts	$	12,288	$	12,386
Work in Progress		6,689		6,259
Finished Goods		500		1,016
	$	19,477	$	19,661