BUSINESS SEGMENTS (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($) Segment	Jun. 30, 2016 USD ($)
Segment information
Number of segments | Segment			2
Consolidated net sales	$ 47,190	$ 41,317	$ 86,152	$ 81,849
Segment operating income	1,982	(822)	(324)	(907)
Other income (expense), net	(949)	304	(529)	336
Interest expense	(330)	(397)	(836)	(561)
Interest income	0	1	1	2
INCOME (LOSS) BEFORE INCOME TAXES	703	(914)	(1,688)	(1,130)
Operating Segments
Segment information
Consolidated net sales	47,190	41,317	86,152	81,849
Segment operating income	4,320	1,229	4,756	3,658
Segment depreciation and amortization	2,710	2,765	5,375	5,278
Segment Reconciling Items
Segment information
Unallocated corporate expenses	(1,527)	(1,443)	(3,698)	(3,444)
Stock-based compensation	(811)	(608)	(1,382)	(1,121)
NobelClad | Operating Segments
Segment information
Consolidated net sales	20,369	26,407	37,303	51,459
Segment operating income	2,322	4,130	2,716	5,639
Segment depreciation and amortization	1,006	1,062	1,994	1,994
DynaEnergetics Segment | Operating Segments
Segment information
Consolidated net sales	26,821	14,910	48,849	30,390
Segment operating income	1,998	(2,901)	2,040	(1,981)
Segment depreciation and amortization	$ 1,704	$ 1,703	$ 3,381	$ 3,284