CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating activities:
Net loss	$ (5,515)	$ (6,617)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:
Depreciation and amortization	1,868	3,884
Stock-based compensation	516	58
Interest expense related to amortization of debt discount and debt issuance costs	717	1,432
Provision for doubtful accounts	12	195
Provision for excess and obsolete inventory	306	645
Deferred income tax expense		(76)
Other non-cash items	994	(12)
Changes in operating assets and liabilities:
Restricted cash		1,100
Accounts receivable	4,356	(597)
Inventories	(254)	(3,048)
Prepaid expenses and other current assets	1,958	889
Other assets	291	(20)
Accounts payable	(5,433)	2,904
Accrued expenses and other	(5,867)	(527)
Net cash (used in) provided by operating activities	(6,051)	210
Investing activities:
Purchases of property and equipment	(1,977)	(1,686)
Cash received from sale of assets		516
Net cash used in investing activities	(1,977)	(1,170)
Financing activities:
Borrowings under lines of credit	24,195	34,879
Repayments under lines of credit	(26,426)	(33,878)
Principal payments on capital lease obligations	(159)	(198)
Proceeds from sale of stock	17,472
Principal payments on notes payable and term loan	(1,325)	(2,340)
Net cash provided by (used in) financing activities	13,757	(1,537)
Effect of exchange rate changes on cash	96	(971)
Net increase (decrease) in cash	5,825	(3,468)
Cash at beginning of period, including discontinued operations	19,752	11,229
Cash at end of period, including discontinued operations	25,577	7,761
Supplemental disclosure of cash flow information:
Cash paid for interest	1,277	1,918
Cash paid for income taxes	198	646
Purchases of property and equipment in accounts payable	$ 3,650	$ 4,495