Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating activities
Net loss	$ (18,014)	$ (3,133)
Adjusted for the following items:
Foreign currency loss (gain)	2,450	(579)
Provision for doubtful accounts		(9)
Inventory write-downs	227	53
Depreciation and amortization	1,148	955
Stock-based compensation expense	5,632	69
Non-cash interest expense	509	481
Deferred income tax expense	63
Loss on disposal of property, plant, and equipment	(2)	7
Changes in non-cash working capital:
Accounts receivable	(840)	(430)
Other receivables	(2,701)	(85)
Inventory	48	(1,055)
Prepaid expenses and other current assets	(1,033)	(704)
Accounts payable	8,019	591
Accrued expenses and other current liabilities	1,589	1,029
Net cash used in operating activities	(2,905)	(2,810)
Investing activities
Increase in deposits and other assets	(23)
Purchases of short-term investments	(29,394)
Proceeds from sales of short-term investments	29,257
Proceeds from maturities of short-term investments	136
Purchases of property, plant and equipment	(28,237)	(835)
Dispositions of property, plant and equipment	11	22
Purchases of intangible assets	(703)	(103)
Net cash used in investing activities	(28,953)	(916)
Financing activities
Minimum lease payments under capital lease	(339)
Proceeds from issuance of convertible preferred stock, net	52,557
Net cash provided by financing activities	56,028	3,279
Effect of foreign currency translation on cash	(1,162)	239
Increase (decrease) in cash	23,008	(208)
Cash, beginning of period	2,323	7,531
Cash, end of period	25,331	7,323
Supplemental Disclosure for Cash Flow Information
Cash paid for interest	573
Privateer Holdings Credit Facility [Member]
Financing activities
Advances	2,250	3,271
Privateer Holdings Construction Facility [Member]
Financing activities
Advances	$ 1,560	$ 8