Joint Venture (Details) - USD ($)	3 Months Ended				6 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Schedule of Equity Method Investments [Line Items]
Net sales	$ 6,457,295		$ 3,622,269		$ 9,398,063	$ 7,965,560
Gross profit	2,104,028		1,090,346		3,181,171	2,335,175
Net loss	725,845	$ (78,982)	(700,814)	$ (608,954)	646,863	(1,309,768)
Total current assets	8,392,657				8,392,657		$ 7,777,431
Total assets	8,709,188				8,709,188		8,177,097
Total current liabilities	$ 2,454,888				$ 2,454,888		$ 2,717,933
Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member]
Schedule of Equity Method Investments [Line Items]
Net sales						4,919,756
Gross profit						368,790
Net loss						(1,496,807)
Total current assets			12,304,440			12,304,440
Total assets			18,281,656			18,281,656
Total current liabilities			2,267,448			2,267,448
Total liabilities			$ 3,162,532			$ 3,162,532