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NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Narrative) (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2020 USD ($) customers vendors	Dec. 31, 2019 USD ($) vendors	Dec. 31, 2020 USD ($) customers vendors shares	Dec. 31, 2019 USD ($) customers vendors shares	Mar. 31, 2020 USD ($)
Cash \| $	$ 1,716,944		$ 1,716,944		$ 4,561,682
Selling expenses \| $	$ 1,837,964	$ 1,175,274	$ 5,315,518	$ 4,103,437
Accounts Receivable [Member]
Number of major customers \| customers			2	3
Concentration Risk, Percentage			35.00%	51.00%
Accounts Receivable [Member] \| Customer 1 [Member]
Concentration Risk, Percentage			18.00%	22.00%
Accounts Receivable [Member] \| Customer 2 [Member]
Concentration Risk, Percentage			17.00%	16.00%
Accounts Receivable [Member] \| Customer 3 [Member]
Concentration Risk, Percentage				13.00%
Revenues [Member]
Number of major customers \| customers	2		2	2
Concentration Risk, Percentage	40.00%	40.00%	40.00%	40.00%
Revenues [Member] \| Customer 1 [Member]
Concentration Risk, Percentage	25.00%	26.00%	23.00%	24.00%
Revenues [Member] \| Customer 2 [Member]
Concentration Risk, Percentage	15.00%	14.00%	17.00%	16.00%
Purchases [Member]
Number of major vendors \| vendors	2	2	3	3
Concentration Risk, Percentage	48.00%	42.00%	52.00%	52.00%
Purchases [Member] \| Vendor 1 [Member]
Concentration Risk, Percentage	24.00%	23.00%	23.00%	21.00%
Purchases [Member] \| Vendor 2 [Member]
Concentration Risk, Percentage	24.00%	19.00%	19.00%	21.00%
Purchases [Member] \| Vendor 3 [Member]
Concentration Risk, Percentage			11.00%	10.00%
Employee Stock Option [Member]
Antidilutive securities excluded from computation of earnings per share, amount \| shares			1,348,566	250,506
Warrant [Member]
Antidilutive securities excluded from computation of earnings per share, amount \| shares			2,453,243	0