Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
OPERATING ACTIVITIES:
Net income (loss)	$ 3,162	$ (1,021)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation	3,394	3,095
Amortization of intangible assets	254	275
Amortization of debt discount and prepaid debt costs	26	55
Gain on embedded derivatives and warrants		(1,086)
Pension cost	91	120
Stock-based compensation expense	2,056	1,706
Provision for (recovery of) losses on accounts receivable	(362)	203
Changes in operating assets and liabilities:
Trade and other accounts receivable	(12,160)	(7,628)
Inventories	(3,031)	(7,098)
Prepaid expenses and other assets	(32)	303
Accounts payable and accrued liabilities	(4,672)	3,167
Accrued employee compensation	(504)	688
Deferred tax liability, long term	19
Other long-term liabilities	(2,275)	(5,567)
Net cash used in operating activities	(14,034)	(12,788)
INVESTING ACTIVITIES:
Purchase of property and equipment	(8,288)	(7,291)
Net cash used in investing activities	(8,288)	(7,291)
FINANCING ACTIVITIES:
Principal payments on long-term debt and short-term borrowings	(3,363)	(6,650)
Proceeds from long-term and short-term borrowings	8,161	6,472
Proceeds from sale of common stock, net of proceeds	10,283
Repurchase of shares	(319)	(121)
Proceeds from issuance of common stock under equity compensation plans	1,393	1,061
Release of restricted cash		8,000
Net cash provided by financing activities	16,155	8,762
Effect of exchange rate changes on cash and cash equivalents	(812)	1,279
Decrease in cash and cash equivalents	(6,979)	(10,038)
Cash and cash equivalents, beginning of period	29,289	39,829
Cash and cash equivalents, end of period	$ 22,310	$ 29,791