Concentrations (Tables)

3 Months Ended

Mar. 31, 2018

Concentrations [Abstract]

Summary of concentrations of purchase from suppliers

	Three Months Ended March 31,
Supplier	2018			2017
A		-			18	%
B		*			11	%
C		22	%		-
D		22	%		-
E		18	%		*
F		12	%		*

* Less than 10%.