Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net income (loss)	$ 20,937	$ 6,416	$ (35,334)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	17,016	19,195	22,186
Amortization of debt issue costs	809	1,415	1,147
(Gain) loss on disposals of property, plant and equipment	(36)	808	493
Allowance for doubtful accounts	140	97	(119)
Compensation expense from issuance of restricted stock and incentive stock options	828	1,253	337
Deferred income tax expense (benefit)	(968)	418	841
Capitalized interest and non-cash interest	(210)		157
Non-cash restructuring and impairment charges		308	2,853
Write-off of unamortized debt issue costs		130	604
Changes in operating assets and liabilities:
Accounts receivable	(7,539)	(15,459)	1,481
Inventories	(7,079)	(10,253)	20,318
Income tax receivable	(419)	2,393	(631)
Other current assets	(1,658)	740	1,821
Other non-current assets	7	(1,403)	(355)
Accounts payable	(4,790)	19,165	(2,128)
Other liabilities	(2,083)	2,637	1,118
Net cash provided by operating activities	14,955	27,860	14,789
Cash flows from investing activities:
Acquisition of property, plant and equipment	(20,329)	(15,249)	(4,255)
Proceeds from disposals of property, plant and equipment	255	79	521
Cash lost in deconsolidation of Eltmann	(979)
Repayment of long-term note receivable		711
Net cash used by investing activities	(21,053)	(14,459)	(3,734)
Cash flows from financing activities:
Debt issue costs paid	(453)	(1,395)	(3,293)
Proceeds of long-term debt, net	20,000
Repayment of long-term debt, net	(16,014)	(9,914)	(12,614)
Proceeds (repayment) of short-term debt, net	789	(3,691)	2,850
Proceeds from issuance of stock and exercise of stock options	2,382	753
Other financing activity	(66)	(57)	(51)
Net cash provided by (used by) financing activities	6,638	(14,304)	(13,108)
Effect of exchange rate changes on cash flows	(1,560)	(2,285)	(255)
Net change in cash and cash equivalents	(1,020)	(3,188)	(2,308)
Cash and cash equivalents at beginning of year	5,556	8,744	11,052
Cash and cash equivalents at end of year	4,536	5,556	8,744
Supplemental schedule of non-cash investing and financing activities:
Compensation expense for stock awards, ($348 in 2011, $1,101 in 2010, and $0 in 2009 and stock option expense ($480 in 2011, $152 in 2010, and $337 in 2009) included in stockholders' equity	828	1,253	337
Acquired land and building through a 20 year capital lease not included in investing activities above	1,948
Reduced note payable to customer with offsetting reduction to accounts receivable			361
Sale of $2,230 in property, plant and equipment for a note receivable with an aggregate carrying value of $1,562 in 2010.		668
Cash paid for interest and income taxes was as follows:
Interest	3,869	4,825	4,678
Income taxes	6,516	1,419	353
Income tax refunds received from taxing authorities	$ 149	$ 2,393	$ 2,653