SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended					0 Months Ended			12 Months Ended				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Oilfield Products	Dec. 31, 2013 NobelClad	Dec. 21, 2011 Syndicated Credit Agreement Revolving Loan 2011 [Member]	Dec. 31, 2011 Syndicated Credit Agreement Revolving Loan 2011 [Member]	Dec. 31, 2011 Syndicated Credit Agreement Revolving Loan 2007 [Member]	Dec. 31, 2013 General and administrative expenses	Dec. 31, 2011 Subsidiaries Foreign Exchange Contract	Sep. 30, 2011 Subsidiaries Foreign Exchange Contract	Sep. 30, 2010 Subsidiaries Foreign Exchange Contract	Dec. 31, 2011 Subsidiaries Foreign Exchange Contract Minimum	Dec. 31, 2011 Subsidiaries Foreign Exchange Contract Maximum	Dec. 31, 2011 Subsidiaries Foreign Exchange Contract Market Exchange Rate Under 1.25 Prior to Settlement	Dec. 31, 2011 Subsidiaries Foreign Exchange Contract Market Exchange Rate Under 1.25 Prior to Settlement Maximum	Dec. 31, 2012 Subsidiaries Foreign Exchange Contract Market Exchange Rate Under 1.25 Prior to Settlement Maximum	Dec. 31, 2011 Subsidiaries Foreign Exchange Contract Market Exchange Rate Above 1.425 Minimum
Foreign Operations and Foreign Exchange Rate Risk
Derivative notional amount										$ 2,500	$ 2,500	$ 2,700
Derivative forward exchange rate												1.269			1.425		1.425	1.425
Gains on derivative agreement										87
Derivative exchange rate threshold prior to settlement													1.25	1.425	1.25	1.25
Inventories
Increase in inventory reserves				1,800
Increase in inventory reserves, net of tax				1,218
Increase in inventory reserves, effect on basic earnings per share				$ (0.09)
Increase in inventory reserves, effect on diluted earnings per share				$ (0.09)
Inventory valuation reserves	1,729	337
Asset Impairments
Impairment loss	756	0	0						756
Goodwill
Number of years as core business segment					40 years
Purchased Intangible Assets
Weighted average amortization period	12 years
Other Assets
Net deferred debt issuance costs	305	406					435	95
Write-off of costs associated with the prior term loan and the banks which are no longer in the syndicate						284
Customer Advances
Customer advances	$ 1,025	$ 1,363