|12 Months Ended|
Dec. 31, 2017
|Share Based Compensation Warrant Activity [Table Text Block]||
A summary of the Company’s warrant activity and related information is as follows:
|Assumptions Used in the Black-Scholes Model||
The assumptions used in the Black-Scholes model for these warrants are as follows:
Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.
Reference 1: http://www.xbrl.org/2003/role/presentationRef