Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income (loss)	$ (13,238)	$ (23,114)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	14,056	15,357
Inventory valuation allowance	1,078	2,219
Deferred income taxes	427	940
Stock-based compensation expense	2,971	3,359
Other	(355)	455
Changes in operating assets and liabilities
Accounts receivable	(25)	(2,332)
Other receivables	2,874	(3,312)
Inventories	1,745	6,179
Other current assets	269	1,516
Accounts payable	(5,910)	(3,391)
Accrued restructuring	(4)	(1,646)
Accrued wages and other	(123)	(669)
Increase (Decrease) in Deferred Revenue	1,148	(2,043)
Other Accrued Liabilities	2,189	(490)
Net cash provided by operating activities	7,102	(6,972)
Cash flows from investing activities:
Capital expenditures	(1,653)	(1,861)
Net cash used in investing activities	(1,653)	(1,861)
Cash flows from financing activities:
Proceeds from (Repayments of) Lines of Credit	8,500	0
Repayments of Lines of Credit	(8,500)	(5,000)
Repayments of Long-term Debt	(18,000)	0
Proceeds from issuance of common stock	250	21,081
Other financing activities	(102)	(551)
Net cash provided by (used in) financing activities	(17,852)	15,530
Effect of exchange rate changes on cash	(463)	(241)
Net increase (decrease) in cash and cash equivalents	(12,866)	6,456
Cash and Cash Equivalents, beginning of period	31,242	25,482
Cash and Cash Equivalents, end of period	18,376	31,938
Supplemental disclosure of cash flow information:
Interest	731	917
Income taxes	$ 884	$ 864