Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
OPERATING ACTIVITIES:
Net loss	$ (20,166)	$ (4,154)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation	8,633	8,267
Amortization of intangible assets	153	153
Amortization of prepaid debt costs	12	15
Pension benefit	(60)	(77)
Stock-based compensation expense	2,906	2,934
Unrealized loss on foreign currency exchange rates	2,240	0
Provision for losses on accounts receivable	90	(27)
Provision for losses on inventory	424	604
Provision for warranties	854	594
Changes in operating assets and liabilities:
Trade and other accounts receivable	7,475	(1,294)
Inventories, net	3,672	(8,171)
Prepaid expenses and other assets	(911)	(538)
Pension asset	(487)	(554)
Accounts payable and accrued liabilities	1,750	4,906
Deferred revenue and customer deposits	508	2,158
Accrued employee compensation	(1,236)	1,561
Deferred tax liability, long term	2,161	0
Other long-term liabilities	512	(126)
Net cash provided by operating activities	8,530	6,251
INVESTING ACTIVITIES:
Purchases of property and equipment	(2,779)	(5,195)
Net cash used in investing activities	(2,779)	(5,195)
FINANCING ACTIVITIES:
Principal payments on long-term debt and short-term borrowings	(18,833)	(4,626)
Proceeds from long-term debt and short-term borrowings	3,040	6,292
Proceeds from sale of common stock, net of offering costs	9,565	0
Proceeds from issuance of common stock under equity compensation plans	876	1,430
Restricted cash - compensating balance	(400)	0
Net cash provided by (used in) financing activities	(5,752)	3,096
Increase in cash and cash equivalents	(1)	4,152
Effect of exchange rate changes on cash and cash equivalents	82	(4,001)
Increase in cash and cash equivalents	81	151
Cash and cash equivalents, beginning of period	24,732	30,647
Cash and cash equivalents, end of period	$ 24,813	$ 30,798