Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
OPERATING ACTIVITIES:
Net income	$ 504	$ 196
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	1,768	1,477
Amortization of intangible assets	134	134
Amortization of debt discount and prepaid debt costs	11	55
Gain on embedded derivatives		(1,086)
Pension cost (benefit)	46	(26)
Stock-based compensation expense	1,286	917
Provision (recovery) on accounts receivable	(103)	60
Changes in operating assets and liabilities:
Trade and other accounts receivable	(6,568)	(5,066)
Inventories	(3,211)	(3,538)
Prepaid expenses and other assets	229	406
Accounts payable and accrued liabilities	(3,217)	457
Accrued employee compensation	(434)	(1,159)
Deferred tax liability, long-term	11
Other long-term liabilities	(2,263)	(5,551)
Net cash used in operating activities	(11,807)	(12,724)
INVESTING ACTIVITIES:
Purchases of property and equipment	(4,057)	(2,900)
Net cash used in investing activities	(4,057)	(2,900)
FINANCING ACTIVITIES:
Principal payments on long-term debt and short-term borrowings	(3,183)	(3,136)
Proceeds from long-term and short-term borrowings	8,161	3,152
Proceeds from sales of common stock, net of offering costs	10,283
Repurchase of shares	(286)	(46)
Proceeds from issuance of common stock under equity compensation plans	1,319	992
Release of restricted cash		8,000
Net cash provided by financing activities	16,294	8,962
Increase (decrease) in cash and cash equivalents from operations	430	(6,662)
Effect of exchange rate changes on cash and cash equivalents	909	(104)
Increase (decrease) in cash and cash equivalents	1,339	(6,766)
Cash and cash equivalents, beginning of period	29,289	39,829
Cash and cash equivalents, end of period	$ 30,628	$ 33,063