Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Computation of Net Loss Per Share (Details)

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Note 11 - Net Loss Per Share - Schedule of Antidilutive Shares Excluded from Computation of Net Loss Per Share (Details) - shares
 3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Employee and Non-employee Stock Options [Member]        
Antidilutive Securities (in shares) 1,421,092 1,413,988 1,421,092 1,413,988
Warrant [Member]        
Antidilutive Securities (in shares) 265,000 255,000 265,000 255,000
Deferred Share Units [Member]        
Antidilutive Securities (in shares) 72,142 47,237 72,142 47,237