Inventories, net

9 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

Note 5 – Inventories, net

Inventories consist of:

	December 31, 2021			March 31, 2021
Purchased parts	$	2,437,294		$	2,912,599
Work-in-process		910,981			1,020,402
Finished goods		-			79,988
Less: Inventory reserve		(600,000	)		(575,000	)
	$	2,748,275		$	3,437,989