Inventories (Details) - Schedule of inventories - USD ($)	Jun. 30, 2021	Mar. 31, 2021
Schedule of inventories [Abstract]
Raw materials	$ 15,520,046	$ 13,293,628
Work-in-progress	1,371,915	2,057,986
Finished goods	14,408,480	9,684,352
Total inventory	$ 31,300,441	$ 25,035,966

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Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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