Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
OPERATING ACTIVITIES:
Net loss	$ (6,848)	$ (9,341)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	2,587	2,824
Amortization of intangible assets	0	51
Pension cost (benefit)	157	(20)
Stock-based compensation expense	1,203	839
Gain on sale of property and equipment	(84)	0
Unrealized loss on foreign currency exchange rates	57	287
Provision for (recovery of) losses on accounts receivable	51	(9)
Provision for (recovery of) losses on inventory	(10)	94
Provision for warranties	139	202
Changes in operating assets and liabilities:
Trade and other accounts receivable	13,076	11,662
Inventories, net	(1,376)	1,622
Prepaid expenses and other assets	132	335
Pension asset	(139)	(168)
Accounts payable and accrued liabilities	(10,563)	(8,246)
Deferred revenue and customer deposits	304	533
Accrued employee compensation	(192)	(1,333)
Deferred tax liability	81	0
Other long-term liabilities	(169)	(109)
Net cash used in operating activities	(1,594)	(777)
INVESTING ACTIVITIES:
Purchases of property and equipment	(2,238)	(1,275)
Proceeds from sale of property and equipment	84	0
Net cash used in investing activities	(2,154)	(1,275)
FINANCING ACTIVITIES:
Principal payments on long-term debt and short-term borrowings	(11)	(3,378)
Proceeds from long-term debt and short-term borrowings	0	2,946
Proceeds from issuance of common stock under equity compensation plans	346	482
Net cash provided by financing activities	335	50
Effect of exchange rate changes on cash and cash equivalents	620	371
Decrease in cash and cash equivalents	(2,793)	(1,631)
Cash and cash equivalents, beginning of period	24,382	24,732
Cash and cash equivalents, end of period	$ 21,589	$ 23,101