Quarterly report pursuant to Section 13 or 15(d)

Note 7 - Net Loss Per Share - Antidilutive Securities (Details)

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Note 7 - Net Loss Per Share - Antidilutive Securities (Details) - shares
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Antidilutive securities (in shares) 7,200,234 38,078
Restricted Stock Units (RSUs) [Member]    
Antidilutive securities (in shares) 13,137 21,412
Warrant [Member]    
Antidilutive securities (in shares) 7,170,431 0
Class A Preferred Shares [Member]    
Antidilutive securities (in shares) 16,666 16,666