Inventories (Tables)

3 Months Ended

Jul. 31, 2020

Inventory Disclosure [Abstract]

Schedule of Inventories

Inventories at July 31, 2020 and April 30, 2020 consisted of the following:

	July 31,			April 30,
	2020			2020
Raw materials	$	4,657,000		$	4,233,000
Work in process		421,000			402,000
Finished goods		568,000			606,000
		5,646,000			5,241,000
Less: allowance for obsolete inventory		(139,000	)		(138,000	)
Inventories, net	$	5,507,000		$	5,103,000