SIGNIFICANT ACCOUNTING POLICIES - Contract Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Percentage of contract liabilities recorded to net sales	90.00%
Contract liabilities	$ 2,736	$ 1,140
NobelClad
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liabilities	1,427	922
DynaEnergetics
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liabilities	$ 1,309	$ 218