Quarterly report pursuant to Section 13 or 15(d)

Note 12 - Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Computation of Net Loss Per Share (Details)

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Note 12 - Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Computation of Net Loss Per Share (Details) - shares
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Employee and Non-employee Stock Options [Member]        
Antidilutive Securities (in shares) 1,251,893 639,360 1,251,893 639,360
Warrant [Member]        
Antidilutive Securities (in shares) 807,563 825,264 807,563 825,264
Deferred Share Units [Member]        
Antidilutive Securities (in shares) 21,183 21,183 21,183 21,183