NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Accounts Receivable (Details) - USD ($)	Dec. 31, 2019	Mar. 31, 2019
Trade receivables	$ 3,371,878	$ 3,142,580
Less: Allowance for doubtful accounts	(40,000)	(40,000)
Accrual for 2% 10 days discount	(36,547)	(34,399)
Net accounts receivable	$ 3,295,331	$ 3,068,181