CONTRACT LIABILITIES (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Dec. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liabilities	$ 2,490	$ 1,140
Contract liability recorded as net sales	275
NobelClad
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liabilities	2,077	922
DynaEnergetics
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liabilities	$ 413	$ 218