Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
OPERATING ACTIVITIES:
Net income (loss)	$ 3,127	$ (921)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	4,228	3,394
Amortization of intangible assets	182	254
Amortization of debt discount and prepaid debt costs	30	26
Pension cost	9	91
Stock-based compensation expense	1,904	2,057
Provision for (recovery of) losses on accounts receivable	(17)	(235)
Changes in operating assets and liabilities:
Trade and other accounts receivable	(2,152)	(6,263)
Inventories	2,043	(7,852)
Prepaid expenses and other assets	(267)	(169)
Accounts payable and accrued liabilities and deferred revenue	6,934	(1,556)
Accrued employee compensation	2,538	(604)
Deferred tax liability, long term	(16)	19
Other long-term liabilities	(65)	(2,275)
Net cash used in operating activities	18,478	(14,034)
INVESTING ACTIVITIES:
Purchase of property and equipment	(6,527)	(8,288)
Restricted cash	(2,300)	0
Net cash used in investing activities	(8,827)	(8,288)
FINANCING ACTIVITIES:
Principal payments on long-term debt and short-term borrowings	(4,060)	(3,363)
Proceeds from long-term and short-term borrowings	3,318	8,161
Proceeds from sale of common stock, net of offering costs	0	10,283
Repurchase of shares	(44)	(319)
Proceeds from issuance of common stock under equity compensation plans	281	1,393
restricted cash - compensating balance	(1,750)	0
Net cash provided by financing activities	(2,255)	16,155
Increase (decrease) in cash and cash equivalents from operations	7,396	(6,167)
Effect of exchange rate changes on cash and cash equivalents	(1,564)	(812)
Decrease in cash and cash equivalents	5,832	(6,979)
Cash and cash equivalents, beginning of period	28,739	29,289
Cash and cash equivalents, end of period	$ 34,571	$ 22,310