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ACCOUNTING POLICIES (Concentration) (Details) - Minimum
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Revenues | Customer concentration risk      
Concentration of Credit Risk      
Percentage for concentration of credit risk disclosure 5.00% 5.00% 5.00%
Accounts receivable | Credit concentration risk      
Concentration of Credit Risk      
Percentage for concentration of credit risk disclosure 5.00% 5.00%