Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - 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					1,473,291	1,473,291
Employee compensation-stock option			30,379			30,379
Exercise of stock options		$ 800	5,600			6,400
Exercise of stock options, shares		80,000
Director fees		$ 227	12,273			12,500
Director fees, shares		22,725
Balance at Dec. 31, 2018		$ 383,847	19,672,315		(10,727,812)	9,328,350
Balance, shares at Dec. 31, 2018		38,384,753
Balance at Sep. 30, 2018		$ 383,847	19,662,766		(12,017,825)	8,028,788
Balance, shares at Sep. 30, 2018		38,384,753
Net Income loss					1,290,013	1,290,013
Employee compensation-stock option			9,549			9,549
Balance at Dec. 31, 2018		$ 383,847	19,672,315		(10,727,812)	9,328,350
Balance, shares at Dec. 31, 2018		38,384,753
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					(1,003,308)	(1,003,308)
Employee compensation-stock option			15,006			15,006
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 Dec. 31, 2019		$ 385,577	19,724,040		(12,572,864)	7,536,753
Balance, shares at Dec. 31, 2019		38,557,643
Balance at Sep. 30, 2019		$ 38,557,643	19,719,038		(11,814,915)	8,289,700
Balance, shares at Sep. 30, 2019		385,577
Net Income loss					(757,949)	(757,949)
Employee compensation-stock option			5,002			5,002
Balance at Dec. 31, 2019		$ 385,577	$ 19,724,040		$ (12,572,864)	$ 7,536,753
Balance, shares at Dec. 31, 2019		38,557,643