INVENTORIES (Tables)

3 Months Ended

Jul. 31, 2020

INVENTORIES

Table summarizing the components of inventories

		July 31, 2020		April 30, 2020
Raw materials	$	2,669,000	$	2,417,000
Work in process		928,000		961,000
Finished goods		324,000		178,000
	$	3,921,000	$	3,556,000