Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Capital Stock - Stock Option Activity (Details)

v3.10.0.1
Note 6 - Capital Stock - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
Sep. 30, 2018
Dec. 31, 2017
Balance, options outstanding (in shares)   1,870,753  
Balance, outstanding weighted average exercise price (in dollars per share)   $ 1.39  
Balance, aggregate intrinsic value $ 651 $ 651 $ 61
Balance, outstanding weighted average remaining contractual term (Year)   8 years 182 days 8 years 219 days
Options granted, number of options (in shares) 335,929 335,929  
Options granted, weighted average exercise price (in dollars per share)   $ 2.07  
Exercised, number of options (in shares)   (211,135)  
Exercised, weighted average exercise price (in dollars per share)   $ 1.71  
Forfeited, number of options (in shares)   (316,180)  
Forfeited, weighted average exercise price (in dollars per share)   $ 1.25  
Balance, options outstanding (in shares) 1,679,367 1,679,367 1,870,753
Balance, outstanding weighted average exercise price (in dollars per share) $ 1.52 $ 1.52 $ 1.39
Exercisable, number of options (in shares) 480,741 480,741  
Exercisable, weighted average exercise price (in dollars per share) $ 1.60 $ 1.60  
Exercisable, aggregate intrinsic value $ 619 $ 619  
Exercisable weighted average remaining contractual term (Year)   7 years 328 days