Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
OPERATING ACTIVITIES:
Net income (loss)	$ (4,154)	$ 9,154
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation	8,267	6,518
Amortization of intangible assets	153	247
Amortization of debt discount and prepaid debt costs	15	46
Pension cost (benefit)	(77)	15
Stock-based compensation expense	2,934	2,622
Recoveries of losses on accounts receivable	(27)	(24)
Provision for losses on inventory	604	1,386
Provision for warranties	594	72
Changes in operating assets and liabilities:
Trade and other accounts receivable	(1,294)	4,081
Inventories	(8,171)	(2,247)
Prepaid expenses and other assets	(538)	(82)
Pension asset	(554)	(649)
Accounts payable and accrued liabilities	4,906	1,944
Deferred revenue and customer deposits	2,158	(3,814)
Accrued employee compensation	1,561	3,570
Deferred tax liability, long term	0	(8)
Other long-term liabilities	(126)	1,235
Net cash provided by (used in) operating activities	6,251	24,066
INVESTING ACTIVITIES:
Purchase of property and equipment	(5,195)	(11,716)
Restricted cash	0	(2,300)
Net cash used in investing activities	(5,195)	(14,016)
FINANCING ACTIVITIES:
Principal payments on long-term debt and short-term borrowings	(4,626)	(7,782)
Proceeds from long-term and short-term borrowings	6,292	6,475
Repurchase of shares	0	(47)
Proceeds from issuance of common stock under equity compensation plans	1,430	305
restricted cash - compensating balance	0	(1,750)
Net cash provided by (used in) financing activities	3,096	(2,799)
Increase (decrease) in cash and cash equivalents from operations	4,152	7,251
Effect of exchange rate changes on cash and cash equivalents	(4,001)	1,057
Increase (decrease) in cash and cash equivalents	151	8,308
Cash and cash equivalents, beginning of period	30,647	28,739
Cash and cash equivalents, end of period	$ 30,798	$ 37,047