Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue:
Collaboration revenue (note 8)	$ 569	$ 4,010
Royalties	32
Revenues	601	4,010
Operating expenses:
Research and development	4,364	3,427
General and administrative	1,895	6,720
Total operating expenses	6,259	10,147
Loss from operations	(5,658)	(6,137)
Other income (expense):
Interest income	99	152
Foreign exchange gain (loss)	2,296	(3,171)
Net loss and comprehensive loss	$ (3,263)	$ (9,156)
Net loss per common share (note 4):
Basic and diluted	$ (0.23)	$ (0.64)
Weighted-average shares outstanding (note 4):
Basic and diluted	14,394,000	14,212,579