SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Restricted Cash
Amount received in lockbox restricted for payment of royalty interest	$ 2,500,000.0
Period for making payment from amount received in lockbox restricted for payment of royalty interest	12 months
Net revenue | Customer concentration
Concentration of Major Customers
Percentage of revenue from customers to total revenue	79.00%	55.00%	85.00%
Net revenue | Customer concentration | Largest customer
Concentration of Major Customers
Percentage of revenue from customers to total revenue	33.00%	30.00%	43.00%
Net revenue | Customer concentration | Second largest customer
Concentration of Major Customers
Percentage of revenue from customers to total revenue	28.00%	14.00%	23.00%
Net revenue | Customer concentration | Third largest customer
Concentration of Major Customers
Percentage of revenue from customers to total revenue	18.00%	11.00%	19.00%
Net revenue | Customer concentration | Customers outside U.S.
Concentration of Major Customers
Percentage of revenue from customers to total revenue	5.00%	23.00%	64.00%