Summary of Significant Accounting Policies - Schedule of concentration (Details)	3 Months Ended	6 Months Ended
	Sep. 30, 2018	Sep. 30, 2018
Sales Revenue, Net [Member]
Concentration Percentage	77.24%	66.75%
Accounts receivable [Member]
Concentration Percentage	80.76%	80.76%
A [Member] | Sales Revenue, Net [Member]
Concentration Percentage		29.98%
A [Member] | Accounts receivable [Member]
Concentration Percentage
B [Member] | Sales Revenue, Net [Member]
Concentration Percentage	44.17%	23.82%
B [Member] | Accounts receivable [Member]
Concentration Percentage	57.74%	57.74%
C [Member] | Sales Revenue, Net [Member]
Concentration Percentage	16.29%	12.95%
C [Member] | Accounts receivable [Member]
Concentration Percentage
D [Member] | Sales Revenue, Net [Member]
Concentration Percentage	16.78%
D [Member] | Accounts receivable [Member]
Concentration Percentage	23.02%	23.02%