Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Operating Cash Flows, Direct Method [Abstract]
Net income	$ 8,015	$ 5,097
Adjustments to reconcile net income to net cash (used in)
Depreciation and amortization	4,216	3,774
Non-cash stock-based compensation	1,190	670
Amortization of debt issuance costs	253	427
Loss on early retirement of debt	5,662	0
Accrued interest not paid in cash	93	555
Deferred income taxes	12,965	2,454
Gain from asset dispositions	(13)	(24)
Non-cash loss (gain) from derivatives	805	(876)
Reclassification of net cash settlements on precious metal contracts to investing activities	(366)	(22)
Net cash (used in) provided by operating activities of discontinued operations, including non-cash gain on sale of assets	(20,157)	244
Change in operating assets and liabilities:
Trade and other receivables	(20,377)	(15,321)
Inventories	(7,212)	(4,036)
Prepaid and other current assets	(1,611)	(727)
Other current liabilities	(2,254)	8,869
Other items, net	(166)	(438)
Net cash (used in) provided by operating activities	(18,957)	646
Cash flows from investing activities:
Additions to property, plant and equipment	(2,727)	(2,471)
Net cash settlements on precious metal contracts	366	22
Acquisitions	271	0
Proceeds from sales of assets	56	408
Investments in associated company	0	6,321
Proceeds from sale of discontinued operations	32,331	0
Net cash used in investing activities of discontinued operations	0	(141)
Net cash provided by (used in) investing activities	30,297	(8,503)
Cash flows from financing activities:
Net revolver borrowings	22,000	12,473
Net (repayments) borrowings on loans - foreign	(1,142)	548
Repayments of term loans	(2,236)	(1,113)
Repurchases of Subordinated Notes	(36,307)	0
Deferred finance charges	(15)	0
Net change in overdrafts	2,822	(2,808)
Other financing activities	(159)	(104)
Net cash (used in) provided by financing activities	(15,037)	8,996
Net change for the period	(3,697)	1,139
Effect of exchange rate changes on cash and cash equivalents	(166)	70
Cash and cash equivalents at beginning of period	15,301	6,841
Cash and cash equivalents at end of period	11,438	8,050
Interest	2,612	3,426
Taxes	$ 1,727	$ 772