|3 Months Ended|
Mar. 31, 2018
|Stockholders' Equity Note [Abstract]|
Note 9 Stock Warrants
A summary of the various changes in warrants during the three-month period ended March 31, 2018 is as follows:
The outstanding warrants as of March 31, 2018 expire from July 31, 2018 to June 18, 2021. The weighted average remaining term of the warrants is 1.85 years. The weighted average exercise price is $8.29 per share.