v3.26.1
Fair Value Measurements (Tables)
9 Months Ended
Jun. 30, 2026
Fair value  
Schedule of assets and liabilities measured at fair value

June 30, 2026

  ​ ​ ​

(Level 1)

  ​ ​ ​

(Level 2)

  ​ ​ ​

(Level 3)

Liabilities

Unsecured promissory note (measured at fair value)

$

$

$

18,227,000

Warrant liability

7,758,238

Total

$

$

$

25,985,238

September 30, 2025

(Level 1)

  ​ ​ ​

(Level 2)

  ​ ​ ​

(Level 3)

Liabilities

Unsecured convertible promissory note (measured at fair value)

$

$

$

29,947,000

Warrant liability

4,768,438

Total

$

$

$

34,715,438

Schedule of changes in the fair value of Level 3 liabilities

Unsecured

Unsecured Convertible

  ​ ​ ​

Promissory Note

  ​ ​ ​

Promissory Note

  ​ ​ ​

Warrants

Balance at September 30, 2025

$

$

29,947,000

$

4,768,438

Issuance of promissory notes

17,000,000

Principal and accrued interest converted to common stock

(18,114,784)

Loss from change in fair value

1,227,000

4,124,336

2,989,800

Repayment

(17,000,000)

Loss on extinguishment of debt

1,043,448

Balance at June 30, 2026

$

18,227,000

$

$

7,758,238

Unsecured promissory notes-aggregate  
Fair value  
Schedule of fair value inputs

September 30, 2025

Term (years)

0.8

Volatility

118.0

%

Risk-free rate

3.8

%

Dividend yield

%

Credit-adjusted discount rate

18.8

%

Stock price

$

1.06

March 2026 Note  
Fair value  
Schedule of fair value inputs

June 30, 2026

Term (years)

0.96

Credit spread

24.1

%

Final redemption value

$

122.2

Common stock warrants  
Fair value  
Schedule of fair value inputs

  ​ ​ ​

June 30, 2026

September 30, 2025

Risk-free interest rate

4.15

%  

3.64

%

Remaining contractual term of warrants (years)

2.8

3.5

Expected volatility

170.1

%

148.6

%

Annual dividend yield

%

%

Stock price

$

1.59

$

1.06