CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Common Stock [Member]	Additional Paid in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
Balance at Mar. 31, 2019	$ 2,923	$ 8,693,106	$ 21,940	$ 993,339	$ 9,711,308
Balance (in shares) at Mar. 31, 2019	29,234,594
Stock-based compensation		90,917			90,917
Restricted stock award	$ 10	(10)
Restricted stock award (in shares)	100,000
Shares issued under long-term incentive plan	$ 2	7,198			7,200
Shares issued under long-term incentive plan (in shares)	20,000
Related party stock transaction		1,851			1,851
Net income				(341,569)	(341,569)
Foreign currency translation adjustment			(252)		(252)
Balance at Mar. 31, 2020	$ 2,935	8,793,062	21,688	651,770	9,469,455
Balance (in shares) at Mar. 31, 2020	29,354,594
Stock-based compensation		179,917			179,917
Restricted stock award	$ 10	(10)
Restricted stock award (in shares)	100,000
Shares issued under long-term incentive plan	$ 4	(4)
Shares issued under long-term incentive plan (in shares)	44,068
Taxes on exercised options		(28,305)			(28,305)
Net income				320,631	320,631
Foreign currency translation adjustment			150		150
Balance at Mar. 31, 2021	$ 2,949	$ 8,944,660	$ 21,838	$ 972,401	$ 9,941,848
Balance (in shares) at Mar. 31, 2021	29,498,662