Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2017
Cash flows from operating activities
Net loss	$ (12,040)	$ (28,024)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	0	17
Change in fair value of derivative financial instruments	2,480	3,443
Stock-based compensation expense	1,462	1,818
Unrealized foreign exchange loss (gain)	(641)	1,585
Changes in operating assets and liabilities:
Receivables	174	(479)
Prepaid expenses and other current assets	76	186
Account payable	345	1,318
Accrued liabilities	259	811
Net cash used in operating activities	(7,885)	(19,325)
Cash flows from investing activities
Purchase of Property, plant & equipment	0	(190)
Net cash used in investing activities	0	(190)
Cash flows from financing activities
Proceeds from the issuance of common stock and warrants	7,903	20,878
Share issuance costs	(1,509)	(1,248)
Proceeds from the exercise of stock options and warrants	1,603	2,588
Net cash provided by financing activities	7,997	22,218
Effect of foreign exchange rate changes on cash	(87)	190
Net increase in cash	25	2,893
Cash at beginning of period	2,644	2,669
Cash at end of period	2,669	5,562
Supplemental disclosure of non-cash cash activities
Cash paid for interest	0	0
Cash paid for income taxes	0	0
Supplemental schedule of non-cash investing and financing activities
Share issuance costs included in accounts payable	0	73
Fair value of warrants issued to agent for services provided in conjunction with the April 2016 Offering	$ 366	$ 0