Quarterly report pursuant to Section 13 or 15(d)

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

v3.8.0.1
Note 6 - Capital Stock - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Apr. 01, 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 $ 1,381 $ 61
Balance, outstanding weighted average remaining contractual term (Year) 8 years 73 days 8 years 219 days
Options granted, number of options (in shares) 335,929  
Options granted, weighted average exercise price (in dollars per share) $ 2.07  
Options forfeited, number of options (in shares) (316,180)  
Options forfeited, weighted average exercise price (in dollars per share) $ 1.25  
Balance, options outstanding (in shares) 1,890,502 1,870,753
Balance, outstanding weighted average exercise price (in dollars per share) $ 1.54 $ 1.39
Exercisable, number of options (in shares) 624,689  
Exercisable, weighted average exercise price (in dollars per share) $ 1.59  
Exercisable, aggregate intrinsic value $ 425  
Exercisable weighted average remaining contractual term (Year) 6 years