REVENUE - Net Sales from Customers (Details) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenues	$ 4,713,933	$ 3,074,076	$ 7,996,458	$ 7,408,344
Customer A | Sales Revenue, Net
Revenues	$ 694,332	$ 663,855	$ 1,708,987	$ 1,386,249
Concentration risk percentage	15.00%	22.00%	21.00%	19.00%
Customer B | Sales Revenue, Net
Revenues	$ 686,486		$ 1,340,673
Concentration risk percentage	15.00%		17.00%
Customer C | Sales Revenue, Net
Revenues	$ 499,921	$ 815,742	$ 1,070,701	$ 1,104,747
Concentration risk percentage	11.00%	27.00%	13.00%	15.00%
Customer D | Sales Revenue, Net
Revenues	$ 558,160	$ 510,599	$ 948,672	$ 1,098,129
Concentration risk percentage	12.00%	17.00%	12.00%	15.00%
Customer E | Sales Revenue, Net
Revenues	$ 726,921
Concentration risk percentage	15.00%
Customer F | Sales Revenue, Net
Revenues	$ 575,315
Concentration risk percentage	12.00%
Customer G | Sales Revenue, Net
Revenues		$ 336,935
Concentration risk percentage		11.00%
Customer H | Sales Revenue, Net
Revenues				$ 1,097,563
Concentration risk percentage				15.00%
Customer I | Sales Revenue, Net
Revenues	$ 459,441	$ 305,114		$ 923,133
Concentration risk percentage	10.00%	10.00%		12.00%