Expenses by category (Tables)

12 Months Ended

Dec. 31, 2017

Expenses by category [Abstract]

Research and Development

Research and Development

	For the Years Ended December 31,
in CHF thousands	2017		2016		2015
Operating expenses		23,822		18,767		10,763
Payroll expenses		8,552		6,450		5,879
Share-based compensation		289		557		407
Total research and development expenses		32,663		25,774		17,049

General and Administrative

General and Administrative

	For the Years Ended December 31,
in CHF thousands	2017		2016		2015
Operating expenses		3,857		3,168		1,377
Payroll expenses		4,984		3,969		1,908
Share-based compensation		1,290		759		132
Total general and administrative expenses		10,131		7,896		3,417

Financial Result, net

Financial Result, net

	For the Years Ended December 31,
in CHF thousands	2017			2016			2015
Interest income/ (expense)		184			36			55
Foreign currency remeasurement gain/(loss), net		(4,049	)		3,443			1,598
Other finance income/(expense)		(7	)		(119	)		(7	)
Finance result, net		(3,872	)		3,360			1,646