Accounts Receivable (Details) - Schedule of accounts receivable, net - USD ($)	Jun. 30, 2020	Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	$ 4,224,794	$ 4,148,190
Allowance for bad debt	(844,557)	(742,849)
Accounts receivable, net	3,380,237	3,405,341
Customer purchases [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	3,927,986	3,975,414
Credit card receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	270,346	143,851
Food stamps [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	25,410	26,407
Others [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total accounts receivable	$ 1,052	$ 2,518