|
Year ended
December 31,
|
||||||||
|
2017
|
2016
|
|||||||
|
Share price
|
$
|
0.82
|
$
|
0.24
|
||||
|
Dividend yield (%)
|
0
|
0
|
||||||
|
Expected volatility of the share prices (%)
|
100
|
%
|
100
|
%
|
||||
|
Risk-free interest rate (%)
|
1.4%-2.8
|
%
|
1.36%-1.58
|
%
|
||||
|
Expected life of share options (years)
|
5.5-7
|
5.5-7 | ||||||