Inventories, net

3 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

Note 5 – Inventories, net

Inventories consist of:

	June 30, 2021			March 31, 2021
Purchased parts	$	2,691,826		$	2,912,599
Work-in-process		934,412			1,020,402
Finished goods		105			79,988
Less: Inventory reserve		(575,000	)		(575,000	)
	$	3,051,343		$	3,437,989