v3.26.1
Note 2 - Summary of Significant Accounting Policies (Tables) - Archimedes Tech SPAC Partners II Co
12 Months Ended
Dec. 31, 2025
Notes Tables  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

For the Period from

June 7,

2024 (Inception)

For the Year Ended

Through

December 31,

December 31,

  ​ ​ ​

2025

  ​ ​ ​

2024

  ​ ​ ​

Non-

  ​ ​ ​

Non-

  ​ ​ ​

Redeemable

  ​ ​ ​

Redeemable

  ​ ​ ​

Redeemable

  ​ ​ ​

Redeemable

Basic net income (loss) per share:

Numerator:

Allocation of net income (loss)

$

6,071,015

$

1,915,723

$

$

(78,700)

Denominator:

 

  ​

 

  ​

 

  ​

 

  ​

Basic weighted-average shares outstanding

 

20,290,411

 

6,402,685

 

 

5,000,000

Basic net income (loss) per ordinary share

$

0.30

$

0.30

$

$

(0.02)

For the Period from

June 7,

2024 (Inception)

For the Year Ended

Through

December 31,

December 31,

 

2025

 

2024

Non-

Non-

  ​ ​ ​

Redeemable

  ​ ​ ​

Redeemable

  ​ ​ ​

Redeemable

  ​ ​ ​

Redeemable

Diluted net income (loss) per share:

 

  ​

 

  ​

 

  ​

 

  ​

Numerator:

 

  ​

 

  ​

 

  ​

 

  ​

Allocation of net income (loss)

$

6,051,450

$

1,935,288

$

$

(78,700)

Denominator:

 

  ​

 

  ​

 

  ​

 

  ​

Diluted weighted-average shares outstanding

 

20,290,411

 

6,488,986

 

 

5,000,000

Diluted net income (loss) per ordinary share

$

0.30

$

0.30

$

$

(0.02)

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

  ​ ​ ​

February 12,

 

2025

 

Implied ordinary share price

$

9.93

Exercise price

$

11.50

Simulation term (years)

 

6.5

Risk-free rate (continuous)

 

4.49

%

Selected volatility

 

3.0

%

Calculated value per warrant

$

0.15

Probability of de-SPAC and market adjustment

 

11.0

%

Temporary Equity [Table Text Block]

Gross proceeds

  ​ ​ ​

$

230,000,000

Less:

Proceeds allocated to Public Warrants

 

(1,725,000)

Ordinary shares issuance costs

 

(13,058,326)

Plus:

Accretion of carrying value to redemption value

 

24,644,295

Ordinary shares subject to possible redemption, December 31, 2025

$

239,860,969