Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
OPERATING ACTIVITIES:
Net loss	$ (723)	$ (3,692)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation	4,335	4,071
Amortization of intangible assets	422	404
Amortization of debt discount and prepaid debt costs	55	62
Gain on embedded derivatives and warrants	(1,086)	(3,661)
Pension benefit	(83)	(153)
Stock-based compensation expense	2,440	2,043
Provision for (recovery of) losses on accounts receivable	304	(119)
Changes in operating assets and liabilities:
Trade and other accounts receivable	(4,430)	(3,831)
Inventories	(8,621)	(1,083)
Prepaid expenses and other assets	722	(242)
Accounts payable and accrued liabilities	4,204	13,584
Accrued employee compensation	954	1,171
Other long-term liabilities	(5,583)	(59)
Net cash provided by (used in) operating activities	(7,090)	8,495
INVESTING ACTIVITIES:
Purchases of property and equipment	(10,994)	(6,626)
Net cash used in investing activities	(10,994)	(6,626)
FINANCING ACTIVITIES:
Principal payments on long-term debt and short-term borrowings	(10,254)	(8,944)
Proceeds from long-term and short-term borrowings	10,047	8,718
Repurchase of shares	(154)	(148)
Proceeds from issuance of common stock under equity compensation plans	2,561	1,210
Release of restricted cash	8,000
Net cash provided by financing activities	10,200	836
Effect of exchange rate changes on cash and cash equivalents	(957)	(210)
(Increase) decrease in cash and cash equivalents	(8,841)	2,495
Cash and cash equivalents, beginning of period	39,829	29,582
Cash and cash equivalents, end of period	$ 30,988	$ 32,077