Goodwill and Other Intangibles (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Goodwill [Roll Forward]
Balance at January 1	$ 59,783
Foreign Currency Translation Adjustment	(8)
Additions	0
Adjustments	(454)
Balance at end of period	59,321
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Accumulated impairment losses	(1,140)
Precious Metal [Member]
Goodwill [Roll Forward]
Balance at January 1	1,494
Foreign Currency Translation Adjustment	(8)
Additions	0
Adjustments	0
Balance at end of period	1,486
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Accumulated impairment losses	0
Tubing [Member]
Goodwill [Roll Forward]
Balance at January 1	1,895
Foreign Currency Translation Adjustment	0
Additions	0
Adjustments	0
Balance at end of period	1,895
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Accumulated impairment losses	0
Engineered Materials [Member]
Goodwill [Roll Forward]
Balance at January 1	47,096
Foreign Currency Translation Adjustment	0
Additions	0
Adjustments	(454)
Balance at end of period	46,642
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Accumulated impairment losses	0
Arlon [Member]
Goodwill [Roll Forward]
Balance at January 1	9,298
Foreign Currency Translation Adjustment	0
Additions	0
Adjustments	0
Balance at end of period	9,298
Goodwill, Impaired, Accumulated Impairment Loss [Abstract]
Accumulated impairment losses	$ (1,140)