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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Impairment of long lived assets, Advertising and promotion expenses, Research and development costs, Lease and Income taxes (Details) - USD ($)	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Impairment of long-lived assets	$ 0	$ 0	$ 0
Advertising and promotion expenses	5,886	176,193	736,522
Research and development costs	$ 421,186	$ 441,405	$ 117,942
Operating lease term	1 year

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The total expense recognized in the period for promotion, public relations, and brand or product advertising.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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