CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Current assets:
Cash	$ 175,754	$ 23,565
Restricted cash		67
Prepaid expenses and other current assets	3,749	403
Total current assets	179,503	24,035
Property and equipment, net	267	26
Deferred offering costs		134
Equity method investment (Note 5)	4,900	2,753
Restricted cash	0	60
Deferred tax assets		9
Total assets	184,670	27,017
Current liabilities:
Notes payable, net of discount		4,216
Accounts payable	8,753	746
Accrued expenses	13,360	2,980
Total current liabilities	22,113	7,942
Warrant liability	6,289	780
Derivative liability	0	512
Contingent equity liability		18,938
Notes payable to related parties		595
Other long-term liabilities	75	13
Total liabilities	28,477	28,780
Commitments and contingencies (Note 14)
Series A convertible preferred shares, no par value, 0 and 11,242,172 shares authorized as of September 30, 2017 and December 31, 2016, respectively; 0 and 4,948,369 shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively; aggregate liquidation preference of $0 and $45,976 as of September 30, 2017 and December 31, 2016, respectively		43,270
Shareholders' equity (deficit):
Common shares, no par value; 200,000,000 and 38,000,000 shares authorized as of September 30, 2017 and December 31, 2016, respectively; 35,930,698 and 13,088,500 shares issued and outstanding as of September 30, 2017 and December 31, 2016, respectively	310,635	19,944
Additional paid-in capital	21,122	10,479
Accumulated deficit	(175,564)	(75,456)
Total shareholders' equity (deficit)	156,193	(45,033)
Total liabilities, convertible preferred shares and shareholders' equity (deficit)	$ 184,670	$ 27,017