INVENTORIES (Tables)

12 Months Ended

Apr. 30, 2018

INVENTORIES

Table summarizing the components of inventories

		2018		2017
Raw materials	$	1,278,000	$	1,305,000
Work in process		635,000		826,000
Finished goods		449,000		608,000
	$	2,362,000	$	2,739,000