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Note 9 - (Loss) Earnings Per Share Applicable to Common Stockholders (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
   

For the three months ended

 
   

March 31,

 
   

2023

   

2022

 

Net (loss) income - basic

  $ (1,390 )   $ 706  

Reversal of gain due to change in fair value of warrant liability

    -       (340 )

Net (loss) income - diluted

  $ (1,390 )   $ 366  
                 

Weighted average shares outstanding - basic

    211,934,041       211,007,522  

Diluted preferred shares

    -       31,847,239  

Weighted average shares outstanding - diluted

    211,934,041       242,854,761  
                 

Basic (loss) earnings per share

  $ (0.01 )   $ 0.00  

Diluted (loss) earnings per share

  $ (0.01 )   $ 0.00  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
   

For the three months ended

 
   

March 31,

 
   

2023

   

2022

 

Options

    5,972       6,863  

Warrants

    40,338       40,338  

Total

    46,310       47,201