CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net loss	$ (29,727)	$ (25,632)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation expense	48	25
Stock-based compensation expense	5,600	45
Non-cash interest expense - related party	121	1,233
Change in fair value of warrant liability	(473)
Changes in operating assets and liabilities, net of impact of assumed net assets of Macrocure:
Prepaid expenses and other assets	(99)	(222)
Deferred tax assets	(158)
Research and development incentive receivable	1,458	(3,053)
Accounts payable and accrued expenses	1,093	2,267
Net cash used in operating activities	(22,137)	(25,337)
Cash flows from investing activities:
Purchases of property and equipment	(64)	(144)
Net cash used in investing activities	(64)	(144)
Cash flows from financing activities:
Proceeds from issuance of common stock in connection with merger with Macrocure	21,165
Proceeds from issuance of common stock in connection with Subscription Agreement	10,000
Proceeds from issuance of common stock in connection with Private Placement	18,000
Proceeds from notes payable - related party	750	25,900
Proceeds from the exercise of stock options	20
Payment of offering costs	(2,172)	(282)
Net cash provided by financing activities	47,763	25,618
Effect of exchange rate changes on cash and cash equivalents	(618)	251
Net increase in cash and cash equivalents	24,944	388
Cash and cash equivalents at beginning of period	793	405
Cash and cash equivalents at end of period	25,737	793
Supplemental disclosure of non-cash financing activities:
Accretion of preferred stock to redemption value	(244)	(4,650)
Deferred offering costs included in accounts payable and accrued expenses	131	$ 1,120
Conversion of notes payable - related party and accrued interest into common stock	31,145
Conversion of convertible preferred stock to common stock	70,775
Value of net assets acquired in connection with merger with Macrocure, excluding cash	$ 96