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Note 13 - Net Loss Per Share Attributable to Common Stockholders (Tables)
12 Months Ended
Sep. 30, 2024
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

(in thousands, except share and per share data)

        
  

Years Ended September 30,

 
  

2024

  

2023

 

Numerator:

        

Net loss applicable to common stockholders - basic earnings per share

 $(1,961) $(9,435)

Effect of dilutive securities:

        

Change in fair value of in-the-money warrant derivative liabilities

  -   (6)

Net loss applicable to common stockholders - diluted earnings per share

 $(1,961) $(9,441)
         

Denominator:

        

Weighted-average shares outstanding for basic earnings per share

  10,417,609   10,417,609 

Effect of dilutive securities:

        

Options

  -   - 

Warrants

  -   6,578 

Preferred stock

  -   - 

Weighted-average shares outstanding for diluted earnings per share

  10,417,609   10,424,187 
         

Basic net income (loss) per share

 $(0.19) $(0.91)

Diluted net income (loss) per share

 $(0.19) $(0.91)
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]
  

As of September 30,

 
  

2024

  

2023

 

Stock options

  2,107,895   1,831,515 

Warrants

  804,533   1,743,891 

Convertible preferred stock

  38,889   38,889