v3.25.1
Note 8 - Warrants and Other Derivative Liabilities and Fair Value Measurements (Tables)
6 Months Ended
Mar. 31, 2025
Notes Tables  
Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

Number of remaining warrants (after the April

1:100 reverse stock split)

  

Exercise price

(post reverse

stock splits)

  

Floor in a

cashless exercise formula, after the Warrant exchange

  

Convertible into, shares,

theoretically

  

Fair value of

shares

  

Change in shares

if Closing bid

price was $1

lower

  

Change in shares

if Closing bid

price was $1

higher

  

Theoretical maximum

number of shares

to be issued, thousand

 
10.89  $3,642,000  $0.01   3,101,221  $32,562,817   301,886   (252,818)  3,494,991 
6.49   3,641,400   0.01   1,847,853   19,402,457   179,927   (150,599)  2,082,530 
1,376.00   6,720   0.01   723,006   7,591,563   70,400   (58,925)  814,828 
5,337.34   2,580   0.01   1,076,710   11,305,455   104,841   (87,751)  1,213,453 
5,164.94   1,620   0.01   654,236   6,869,478   63,704   (53,320)  737,324 
6,471.10   540   0.01   273,229   2,868,905   26,604   (22,268)  307,929 
58,732.08   194   0.01   890,905   9,354,503   86,749   (72,608)  1,004,050 
98,684.22   36   0.01   277,783   2,916,722   27,047   (22,640)  313,061 
287,081.34   12   0.01   269,365   2,828,333   26,228   (21,953)  303,574 
462,864.40  $7,295,102       9,114,308  $95,700,233   887,386   (742,882)  10,271,740 
Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]
      

Quoted Prices

  

Significant

     
      

in Active

  

Other

  

Significant

 
      

Markets for

  

Observable

  

Unobservable

 
  

March 31,

  

Identical Assets

  

Inputs

  

Inputs

 
  

2025

  

(Level 1)

  

(Level 2)

  

(Level 3)

 

Liabilities recorded at fair value on a recurring basis

 $95,700,233  $  $95,700,233  $ 
      

Quoted Prices

  

Significant

     
      

in Active

  

Other

  

Significant

 
      

Markets for

  

Observable

  

Unobservable

 
  

September 30,

  

Identical Assets

  

Inputs

  

Inputs

 
  

2024

  

(Level 1 )

  

(Level 2)

  

(Level 3)

 

Liabilities recorded at fair value on a recurring basis

 $79,742,180  $  $79,742,180  $ 
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Balance, September 30, 2024

 $79,742,180 

Warrants recognized upon issuance of convertible instruments

  70,187,418 

Loss / (gain) on revaluation

  (63,617,277)

Loss / (gain) on exchange of warrants

  57,770,454 

Reclassification to liability to issue shares upon unfinished warrant exercise on period end

  (2,392,462)

Conversions of derivatives into common shares

  (45,990,080)

Balance, March 31, 2025

 $95,700,233 
     
     

Balance, September 30, 2023

 $64,863,309 

Loss / (gain) on derivative liability revaluation

  3,106,223 

Reclassification to liability to issue shares upon unfinished warrant exercise on period end

  (3,680,006)

Conversions of warrants into common shares

  (59,165,039)

Balance, March 31, 2024

 $5,124,487