Consolidated Statements of Shareholders' Equity - USD ($)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid in Capital [Member]	Subscriptions Receivable [Member]	Accumulated Deficit [Member]	Total
Balance at Mar. 31, 2018		$ 382,820	$ 19,624,063		$ (12,201,103)	$ 7,805,780
Balance, shares at Mar. 31, 2018		38,282,028
Net Income loss					631,547	631,547
Employee compensation-stock option			39,928			39,928
Exercise of stock options		$ 1,600	11,000	(2,200)		10,400
Exercise of stock options, shares		160,000
Director fees		$ 228	12,272			12,500
Director fees, shares		22,725
Balance at Mar. 31, 2019		$ 384,648	19,687,263	(2,200)	(11,569,556)	8,500,155
Balance, shares at Mar. 31, 2019		38,464,753
Net Income loss					(2,857,000)	(2,857,000)
Employee compensation-stock option			20,008			20,008
Exercise of stock options		$ 600	9,600			10,200
Exercise of stock options, shares		60,000
Collection of subscription receivable				2,200		2,200
Issuance of common stock - directors		$ 329	12,171			12,500
Issuance of common stock - directors, shares		32,890
Balance at Mar. 31, 2020		$ 385,576	$ 19,729,043		$ (14,426,556)	$ 5,688,063
Balance, shares at Mar. 31, 2020		38,557,643