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, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Employee and Non-employee Stock Options [Member]        
Antidilutive Securities (in shares) 2,623,998 1,421,092 2,623,998 1,421,092
Warrant [Member]        
Antidilutive Securities (in shares) 265,000 265,000 265,000 265,000
Common Stock, Deferred Stock Units Settlement [Member]        
Antidilutive Securities (in shares) 134,402 72,142 134,402 72,142