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GOODWILL (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2016
USD ($)
Changes to the carrying amount of goodwill  
Goodwill balance at the beginning of the period $ 17,190
Goodwill balance at the end of the period 17,788
Operating Segments | NobelClad  
Changes to the carrying amount of goodwill  
Goodwill balance at the beginning of the period 17,190
Adjustment due to recognition of tax benefit of tax amortization of certain goodwill (35)
Adjustment due to exchange rate differences 633
Goodwill balance at the end of the period $ 17,788