SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of assets and liabilities (Details) - USD ($)	3 Months Ended	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2019
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Beginning balance		$ 0
Derivative liabilities recognized at grant date on June 20, 2019		3,150,006
Change in fair value of derivative liabilities	$ (485,400)	(1,509,406)
Fair value of Series B warrants exercised		(1,010,752)
Ending balance	$ 629,848	$ 629,848