Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenue:
Collaboration revenue (note 10)	$ 4,293	$ 13,192	$ 12,347	$ 23,489
Royalties	1	1	3	3
Revenues	4,294	13,193	12,350	23,492
Operating expenses:
Research and development	3,793	3,216	10,889	8,315
General and administrative	1,321	1,316	8,219	4,106
Total operating expenses	5,114	4,532	19,108	12,421
Income (loss) from operations	(820)	8,661	(6,758)	11,071
Other income (expense):
Interest income	130	138	445	416
Foreign exchange gain (loss)	(3,137)	392	(5,502)	307
Net income (loss)	(3,827)	9,191	(11,815)	11,794
Net income attributable to participating securities		5,596		8,199
Net income (loss) attributable to common shareholders	$ (3,827)	$ 3,595	$ (11,815)	$ 3,595
Net income (loss) per common share (note 5):
Basic	$ (0.27)	$ 2.67	$ (0.83)	$ 2.67
Diluted	$ (0.27)	$ 1.69	$ (0.83)	$ 1.71
Weighted-average shares outstanding (note 5):
Basic	14,298,612	1,348,417	14,251,006	1,346,989
Effects of dilutive securities
Stock options		763,949		749,967
Subscription rights		10,400		11,447
Diluted	14,298,612	2,122,766	14,251,006	2,108,403
Other comprehensive income (loss):
Foreign currency translation adjustment		$ (1,512)		$ (1,502)
Comprehensive income (loss)	$ (3,827)	$ 7,679	$ (11,815)	$ 10,292