v3.26.1
Note 7 - Convertible Notes with Warrants (Related Party) (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

 

 

Total

 

 

Tranche 1

 

 

Tranche 2

 

 

 

 

 

 

 

 

 

 

 

Fair value at December 31, 2025

 

$

25,014,200

 

 

$

11,745,700

 

 

$

13,268,500

 

Fair value change in convertible notes (related party)

 

 

8,262,600

 

 

 

3,883,500

 

 

 

4,379,100

 

Fair value at March 31, 2026

 

 

33,276,800

 

 

 

15,629,200

 

 

 

17,647,600

 

Fair value change in convertible notes (related party)

 

 

(89,900

)

 

 

(18,700

)

 

 

(71,200

)

Fair value at June 30, 2026

 

$

33,186,900

 

 

$

15,610,500

 

 

$

17,576,400

 

 

 

Total

 

 

Tranche 1

 

 

Tranche 2

 

 

 

 

 

 

 

 

 

 

 

Fair value at December 31, 2024

 

$

19,869,700

 

 

$

9,269,900

 

 

$

10,599,800

 

Fair value change in convertible notes (related party)

 

 

304,400

 

 

 

145,900

 

 

 

158,500

 

Fair value at March 31, 2025

 

 

20,174,100

 

 

 

9,415,800

 

 

 

10,758,300

 

Fair value change in convertible notes (related party)

 

 

3,590,600

 

 

 

1,712,400

 

 

 

1,878,200

 

Fair value at June 30, 2025

 

$

23,764,700

 

 

$

11,128,200

 

 

$

12,636,500

 

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

December 31,

2025

Expected stock-price volatility

104.1

%

Risk-free interest rate

4.0

%

Stock price (in Australian dollars)

$

0.5700

 

 

June 30,

 

 

December 31,

 

 

 

2026

 

 

2025

 

 

 

 

 

 

 

 

Expected dividend yield

 

 

0

%

 

 

0

%

Expected stock-price volatility

 

 

52.1

%

 

 

59.2

%

Risk-free interest rate

 

 

4.55

%

 

 

3.97

%

Stock price

 

$

1.2673

 

 

$

1.0240

 

Conversion price

 

$

0.4190

 

 

$

0.4083

 

Securities Purchase Agreement [Member]  
Notes Tables  
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

 

 

June 30,

 

 

December 31,

 

 

 

2026

 

 

2025

 

 

 

 

 

 

 

 

Expected dividend yield

 

 

0

%

 

 

0

%

Expected stock-price volatility

 

 

48.6 - 55.4

%

 

 

66.0 - 72.1

%

Risk-free interest rate

 

 

3.92

%

 

 

3.42 - 3.43

%

Stock price

 

$

1.2760

 

 

$

1.0210

 

Conversion price

 

$

0.2563 - 0.2691

 

 

$

0.2563 - 0.2691