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Note 14 - Net Loss Per Share (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

Three Months Ended March 31,

 

(in thousands, except share and per share data)

 

2024

   

2023

 

Numerator:

               

Net loss attributable to common stockholders

  $ (11,080 )   $ (11,770 )

Denominator:

               

Weighted average common shares outstanding

    128,427,231       76,049,665  

Net loss per share attributable to common stockholders – basic and diluted

  $ (0.09 )   $ (0.15 )
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
   

Three Months Ended March 31,

 
   

2024

   

2023

 

Convertible notes payable (see Note 8)

    1,732,703       1,732,703  

Common stock warrants (see Note 13)

    105,432,083       4,477,045  

Options to purchase common stock (see Note 11)

    21,985,334       16,205,404  

Unvested restricted stock awards (see Note 11)

    767,945       812,170  

Contingent earn-out shares (see Note 2)

    6,592,334       6,592,334  

Total

    136,510,399       29,819,656