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Summary of Significant Accounting Policies - Schedule of Concentration of Risk by Customers (Details) - Accounts Receivable [Member]
12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Customer A [Member]    
Concentration risk percentage 18.00% 21.00%
Customer B [Member]    
Concentration risk percentage 18.00% 2.00%
Customer C [Member]    
Concentration risk percentage 12.00% 2.00%
Customer D [Member]    
Concentration risk percentage 12.00% 0.00%
Customer E [Member]    
Concentration risk percentage 10.00% 0.00%