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Note 12 - Stock-based Compensation (Tables)
9 Months Ended
Sep. 30, 2023
Notes Tables  
Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Time Vesting Options

     

Weighted

             
      

Average

  

Weighted

      

Weighted

 
      

Remaining

  

Average

      

Average

 

Range of Exercise

 

Number

  

Contractual

  

Exercise

  

Options

  

Exercise

 

Prices between

 

Outstanding

  

Life

  

Price

  

Exercisable

  

Price

 

$4.01 - $8.00

  566,673   6.89  $7.42   538,340  $7.46 

$8.01+

  96,125   2.28   25.22   96,125  $25.22 
   662,798   6.22  $10.00   634,465     

Performance Vesting Options

     

Weighted

             
      

Average

  

Weighted

      

Weighted

 
      

Remaining

  

Average

      

Average

 

Range of Exercise

 

Number

  

Contractual

  

Exercise

  

Options

  

Exercise

 

Prices between

 

Outstanding

  

Life

  

Price

  

Exercisable

  

Price

 

$4.01 - $8.00

  240,000   6.67  $7.59   240,000  $7.59 
   240,000   6.67  $7.59   240,000     

Market Vesting Options

     

Weighted

             
      

Average

  

Weighted

      

Weighted

 
      

Remaining

  

Average

      

Average

 

Range of Exercise

 

Number

  

Contractual

  

Exercise

  

Options

  

Exercise

 

Prices between

 

Outstanding

  

Life

  

Price

  

Exercisable

  

Price

 

$0.01 - $4.00

  733,334   1.39  $3.00   -  $- 
   733,334   1.39  $3.00   -     
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
                  

Performance Vesting

 
  

Market Vesting Options

  

Time Vesting Options

  

Options

 
      

Weighted

      

Weighted

      

Weighted

 
      

Average

      

Average

      

Average

 
  

Options

  

Exercise

  

Options

  

Exercise

  

Options

  

Exercise

 

Date/Activity

 

Outstanding

  

Price

  

Outstanding

  

Price

  

Outstanding

  

Price

 

Balance, December 31, 2022

  633,334   3.00   662,910  $10.02   240,000  $7.59 

Granted

  100,000   3.00   -   -   -   - 

Forfeited or expired

  -   -   (112)  162.00   -   - 

Balance, September 30, 2023

  733,334   3.00   662,798   10.00   240,000  $7.59 
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding [Table Text Block]
  

Share Price Target

     
                      

Guaranteed

  

Total

 

Executive

 

$6.00

  

$9.00

  

$12.00

  

$15.00

  

$18.00

  

Price

  

Shares

 

Mills Shares Vested

  16,667   33,334   50,000   66,667   83,333   83,333   333,334 

Logan Shares Vested

  10,000   20,000   30,000   40,000   50,000   50,000   200,000 
                             

Percentage of Shares Vested

  5%  10%  15%  20%  25%  25%    
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Risk-free interest rate

  3.30%

Expected term (in years)

  2.68 

Expected price volatility

  123.53%

Dividend yield

  0%