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INVESTMENTS (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
INVESTMENTS    
Cash investments in marketable equity securities $ 1,100  
Cost of purchase of marketable equity securities 1,900 $ 700
Market value of available-sale-securities 1,032 $ 1,082
Fair value of securities 1,000  
Unrealized gain on available-for-sale securities $ 900