Discontinued Operations (Narrative) (Details)	12 Months Ended			1 Months Ended	12 Months Ended		3 Months Ended	1 Months Ended				0 Months Ended
	Dec. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Jul. 31, 2013 Indiana Tube Denmark USD ($)	Dec. 31, 2013 Indiana Tube Denmark	Dec. 31, 2012 Indiana Tube Denmark USD ($)	Sep. 30, 2011 Kasco-France EUR (€)	Jan. 31, 2013 Handy & Harman Group Ltd. Continental Industries USD ($)	Jun. 30, 2013 Handy & Harman Group Ltd. Canfield USD ($)	Jul. 31, 2013 Handy & Harman Group Ltd. Indiana Tube Mexico USD ($) installment	Jun. 30, 2013 Handy & Harman Group Ltd. Indiana Tube Mexico USD ($)	Feb. 04, 2011 Arlon CM Adhesive Film Division USD ($)	Mar. 25, 2011 Arlon CM Arlon LLC Engineered Coated Products Devision and SignTech Subsidiary USD ($)	Dec. 31, 2011 Arlon CM Arlon LLC Engineered Coated Products Devision and SignTech Subsidiary USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Aggregate sale price						$ 2,400,000		$ 37,400,000	$ 9,500,000	$ 3,700,000		$ 27,000,000	$ 2,500,000
Working capital adjustment								100,000	500,000
Net sale proceeds	(102,000)	(1,282,000)	(1,380,000)					3,700,000				24,200,000	2,300,000
Sale price of stock							1
Sale price, percentage of pretax earnings (as a percent)							25.00%
Sale price, term (in years)							3 years
Supply agreement, term (in years)							5 years
Number of installments										2
Sale price installment										1,850,000
Restructuring reserve											900,000
Foreign currency translation gains				2,600,000
Sale price on disposal of equipment													500,000
Escrow held in trade and other receivables														3,000,000
Note receivable						$ 800,000
Note receivable payment term (in years)					5 years