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Note 10 - Equity (Tables)
9 Months Ended
Sep. 30, 2024
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]
  

Number of Warrants

  

Weighted Average Exercise Price

  

Weighted Average Remaining Life

 

Outstanding warrants, January 1, 2024

  193,433  $23.46   2.74 

Series C Warrants (Note 10.a)

  86,820   24.62     

Broker warrants for Series C Offering (Note 10.a)

  4,163   12.31     

PIPE Warrants (Note 10.a)

  823,529   6.83     
WaveDancer legacy warrants (Note 4)  76,098   94.69     

Outstanding warrants, September 30, 2024

  1,184,043  $16.51   4.06 
  

Number of Warrants

  

Weighted Average Remaining Life

 

Outstanding warrants, January 1, 2024

  54,782   1.51 

Pre-funded warrants (Note 10.a)

  504,324     

Series A warrants (Note 10.d)

  629,039     

Series D warrants (Note 10.e)

  92,798     

Consulting agreement warrants (Note 10.f)

  44,932     

Exercised

  (435,169)    

Outstanding warrants, September 30, 2024

  890,706   3.48 
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
  

Number of Stock Options

  

Weighted Average Exercise Price

  

Weighted Average Remaining Contractual Term (Years)

  

Aggregate Intrinsic Value

 

Outstanding Options, December 31, 2023

  134,333  $20.77   6.18  $- 

Options granted

  335,728   5.18   -   - 

WaveDancer options

  113,522   82.25   -   - 

Outstanding Options, September 30, 2024

  583,583  $23.77   3.43  $- 
  

Number of Stock Options

  

Weighted Average Grant-Date Fair Value

 

Non-Vested Options, December 31, 2023

  90,988  $4.77 

Options granted

  335,728   4.77 

Options vested

  (185,704)  4.94 

Non-Vested Options, September 30, 2024

  241,012  $4.63 
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
  

2024

 

Stock price

  $6.91  

Risk free rate

 3.75%-3.82% 

Dividend yield

  0%  

Expected volatility

 86.50%-87.60% 

Expected term (in years)

 3.91-4.93 
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
  

Three months ended

September 30,

  

Nine months ended

September 30,

 
  

2024

  

2023

  

2024

  

2023

 

Employees stock options

 $1,296  $78  $1,413  $226 

Restricted share units

  410   -   410   - 

Series D warrants

  610   -   610   - 

Total

 $2,316  $78  $2,433  $226