Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income (loss)	$ (6,445)	$ (10,008)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	2,816	4,358
Amortization of debt discount and issuance costs	888	0
Inventory valuation allowance and adverse purch commitment charges	(332)	702
Deferred income taxes	306	195
Stock-based compensation expense	344	1,154
Change in fair value of Warrant liability	(1,852)	0
Other	96	(185)
Changes in operating assets and liabilities
Accounts receivable	3,226	(11,547)
Other receivables	804	741
Increase (Decrease) in Inventory and Deferred Cost of Sales	994	(8,681)
Accounts payable	(4,683)	(7,038)
Accrued restructuring	(1,251)	(1,124)
Accrued wages and other	(955)	(2,368)
Increase (Decrease) in Deferred Revenue	1,845	1,578
Other Accrued Liabilities	1,959	350
Net cash provided by operating activities	(4,228)	(14,511)
Cash flows from investing activities:
Capital expenditures	(269)	(1,803)
Net cash used in investing activities	(269)	(1,803)
Cash flows from financing activities:
Proceeds from (Repayments of) Lines of Credit	38,168	37,000
Repayments of Lines of Credit	(45,621)	(22,000)
Proceeds from Notes Payable	17,000	0
Payments of debt issuance costs	(1,861)	0
Net settlement of restricted shares	(7)	(192)
Other financing activities	74	108
Net cash provided by (used in) financing activities	7,753	14,916
Effect of exchange rate changes on cash	22	336
Net increase (decrease) in cash and cash equivalents	3,278	(1,062)
Cash and cash equivalents, beginning of period	8,124
Restricted cash and cash equivalents, beginning of period	0	0
Cash, cash equivalents, and restricted cash, beginning of period		33,087
Cash, cash equivalents, and restricted cash, end of period	11,402	32,025
Restricted cash and cash equivalents, end of period	4,000
Cash and cash equivalents, end of period	7,402
Supplemental disclosure of cash flow information:
Interest	175	247
Income taxes	$ 608	$ 286