Condensed consolidated balance sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents (Note 3)	$ 109,373	$ 14,906
Short-term investments (Note 7)	8,038	24,191
Accounts and other amounts receivable	19	65
Prepayments and deposits	505	139
Total current assets	117,935	39,301
Property and equipment	81	105
Long-term investments (Note 7)	0	2,003
Other	12	13
Total assets	118,028	41,422
Current liabilities
Accounts payable and accrued liabilities	3,859	5,203
Total current liabilities	3,859	5,203
Warrant liabilities (Note 7)	142	72
Total liabilities	4,001	5,275
Share capital: (Note 5)
Common stock	0	0
Additional paid-in capital	219,637	125,567
Accumulated deficit	(105,613)	(89,416)
Accumulated other comprehensive income (loss)	3	(4)
Total stockholders' equity	114,027	36,147
Total liabilities and stockholders' equity	$ 118,028	$ 41,422