XML 112 R76.htm IDEA: XBRL DOCUMENT v3.8.0.1
Share-based compensation, Summary Information (Details)
3 Months Ended 12 Months Ended
Dec. 31, 2016
CHF (SFr)
shares
Dec. 31, 2017
CHF (SFr)
yr
Dec. 31, 2016
CHF (SFr)
shares
yr
Dec. 31, 2015
CHF (SFr)
yr
Dec. 31, 2014
CHF (SFr)
Share-based compensation [Abstract]          
Exercise price for outstanding options (in CHF per share) SFr 0.14548 SFr 2.09 SFr 0.14548 SFr 0.14548 SFr 0.21668
Weighted average fair value, options granted (in CHF per share)   7.29 5.85 1.77  
Fair values of options granted (in CHF per share)     0.14548 0.14548  
Weighted average share price of options granted (in CHF per share)   SFr 8.77 SFr 5.96 SFr 1.91  
Risk free interest rate   0.00% 0.00% 0.00%  
Volatility rate   80.00% 80.00% 50.00%  
Expected duration | yr   6 6 6  
Expiry period of options   10 years      
Weighted average share price of common share options exercised (in CHF per share)   SFr 10.53 SFr 6.22 SFr 1.91  
Expense charged against the income statement   1,579,000 SFr 1,317,000 SFr 540,000  
Incremental fair value amount   238,000      
Bottom of Range [Member]          
Share-based compensation [Abstract]          
Exercise price for outstanding options (in CHF per share)   0.14548      
Fair values of options granted (in CHF per share)   9.53      
Top of Range [Member]          
Share-based compensation [Abstract]          
Exercise price for outstanding options (in CHF per share)   12.00      
Fair values of options granted (in CHF per share)   SFr 12.00      
Former Chief Financial Officer [Member]          
Share-based compensation [Abstract]          
Forfeited during the year (in shares) | shares     98,500    
Granted during the year (in shares) | shares 49,250        
Grant date fair value of the replacement award SFr 674,000   SFr 674,000