CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Cash flows from operating activities:
Net loss	$ (8,724)	$ (4,802)
Reconciliation of net loss to net cash (used in) provided by operating activities:
Depreciation of fixed assets and leases	876	561
Provision for bad debt	(105)	0
Provision for write down of inventory	453	602
Stock based compensation	368	616
Amortization of Debt Issuance Costs and Discounts	1,523	2,594
Amortization of intangible assets	756	791
Non cash lease expense	97	0
Foreign currency exchange loss (gain)	844	(1,325)
Partial extinguishment of Convertible 3.75% Senior Notes	185	0
Loss on impairment of intangible assets	0	22
Non cash interest expense	2,020	0
Changes in operating assets and liabilities:
Accounts receivable	892	(711)
Inventories	(5,063)	(2,376)
Prepaid expenses, other current receivables and assets	558	902
Accounts payable and accrued expenses	(95)	(6,423)
Operating liabilities	(85)	0
Deferred income	(551)	0
Net cash used in operating activities	(6,051)	(9,549)
Cash flows from investing activities:
Capital expenditures	(2,129)	(4,094)
Net cash used in investing activities	(2,129)	(4,094)
Cash flows from financing activities:
Proceeds from Revolver	5,000	0
Debt issuance costs	(109)	0
Repurchase of 3.75% senior notes	(2,686)	0
Principal paid on lease obligation	(3)	0
Net cash provided by financing activities	2,202	0
Effect of exchange rate on cash and cash equivalents	(16)	(287)
Net decrease in cash, cash equivalents and restricted cash	(5,978)	(13,643)
Cash, cash equivalents and restricted cash at beginning of period	13,069	27,165
Cash, cash equivalents and restricted cash at end of period	7,075	13,235
Supplemental Cash flow information:
Cash payments for interest	278	0
Cash payments for income taxes	20	15
Non-cash operating, investing and financing transactions:
Acquisition of capital expenditures in accounts payable and accrued expenses	1,365	3,421
Capitalized interest in capital expenditures	0	1,348
Capitalized stock compensation in capital expenditures	$ 10	$ 30