Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ (17,562)	$ (3,556)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	8,845	8,593
Inventory valuation allowance and adverse purch commitment charges	859	1,389
Deferred income taxes	300	(178)
Stock-based compensation expense	1,692	1,880
Other	(129)	(590)
Changes in operating assets and liabilities
Accounts receivable	(5,207)	17,929
Other receivables	(83)	7,007
Increase (Decrease) in Inventory and Deferred Cost of Sales	(4,803)	(5,103)
Accounts payable	3,155	(18,704)
Accrued restructuring	(195)	(453)
Accrued wages and other	(2,315)	(830)
Increase (Decrease) in Deferred Revenue	1,910	(17,359)
Other Accrued Liabilities	(255)	392
Net cash provided by operating activities	(4,182)	623
Cash flows from investing activities:
Capital expenditures	(3,158)	(1,130)
Net cash used in investing activities	(3,158)	(1,130)
Cash flows from financing activities:
Proceeds from (Repayments of) Lines of Credit	78,000	48,500
Repayments of Lines of Credit	(58,000)	(38,500)
Other financing activities	86	479
Net cash provided by (used in) financing activities	20,086	10,479
Effect of exchange rate changes on cash	415	190
Net increase (decrease) in cash and cash equivalents	13,161	10,162
Cash and Cash Equivalents, beginning of period	33,087	20,764
Cash and Cash Equivalents, end of period	46,248	30,926
Supplemental disclosure of cash flow information:
Interest	467	288
Income taxes	$ 533	$ 443