PRINCIPAL CLIENTS (Tables)

3 Months Ended

Mar. 31, 2018

Risks and Uncertainties [Abstract]

Schedule of Revenue by Major Customers

The following table represents revenue concentration of our principal clients:

	Three Months Ended March 31,
	2018				2017
	Revenue		Percentage		Revenue		Percentage
T-Mobile	$	18,188	27.3	%	$	22,054	28.4	%
Comcast	$	8,629	13.0	%	$	3,802	4.9	%
AT&T	$	5,070	7.6	%	$	8,647	11.1	%
Sprint	$	2,808	4.2	%	$	10,256	13.2	%