Annual report pursuant to Section 13 and 15(d)

SEGMENT INFORMATION, MAJOR CUSTOMERS AND GEOGRAPHICAL DATA Narrative (Details)

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SEGMENT INFORMATION, MAJOR CUSTOMERS AND GEOGRAPHICAL DATA Narrative (Details) (Sales [Member])
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Foreign Operations [Member]
     
Revenue, Major Customer [Line Items]      
Concentration Risk, Percentage 18.00% 22.00% 28.00%
Anadarko Petroleum Corporation [Member]
     
Revenue, Major Customer [Line Items]      
Concentration Risk, Percentage 19.00% 15.00% 12.00%
U.S. Government [Member]
     
Revenue, Major Customer [Line Items]      
Concentration Risk, Percentage 11.00% 11.00% 11.00%