Inventories - Schedule of Inventories (Details) - USD ($)	Dec. 31, 2018	Mar. 31, 2018
Inventory Disclosure [Abstract]
Raw materials	$ 256,128	$ 126,079
Work in progress	30,821	113,150
Finished goods	104,697
Total	391,646	239,229
Less: allowance for obsolete inventories
Inventories, net	$ 391,646	$ 239,229

Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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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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