Trade Accounts Receivable (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Trade Accounts Receivable (Textual)
Accounts receivable written off	$ 28,589	$ 101,660	$ 55,423	$ 137,728
Trade accounts receivable pledged as collateral for borrowings	$ 398,415		$ 398,415		$ 627,055