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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 3) - Net revenue - Customer concentration	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Concentration of Major Customers
Percentage of revenue from customers to total revenue	91.00%	86.00%	90.00%
Largest customer
Concentration of Major Customers
Percentage of revenue from customers to total revenue	35.00%	32.00%	33.00%
Second largest customer
Concentration of Major Customers
Percentage of revenue from customers to total revenue	30.00%	28.00%	29.00%
Third largest customer
Concentration of Major Customers
Percentage of revenue from customers to total revenue	26.00%	26.00%	28.00%
Customers outside U.S.
Concentration of Major Customers
Percentage of revenue from customers to total revenue	1.00%	1.00%	2.00%

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
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