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INVESTMENTS (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Jun. 30, 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 1,334 $ 1,082
Unrealized loss on available-for-sale securities $ 500