v3.26.1
Fair Value Measurements (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Mountain Lake Acquisition Corp.    
Fair Value Measurements [Line Items]    
Schedule of Interest Income from the Trust Account During the year ended March 31, 2026, the Company did not withdraw any interest income from the Trust Account.

Gross 

  ​ ​ ​

  ​ ​ ​

Amortized 

  ​ ​ ​

Holding 

  ​ ​ ​

Held To Maturity

Cost

Gain

Fair Value

March 31, 2026

 

U.S. Treasury Securities
(Matured on April 9, 2026)

$

243,343,813

$

14,776

$

243,358,589

During the year ended December 31, 2025, the Company did not withdraw any interest income from the Trust Account.

Gross 

  ​ ​ ​

  ​ ​ ​

Amortized 

  ​ ​ ​

Holding 

  ​ ​ ​

Held To Maturity

Cost

Gain

Fair Value

December 31, 2025

 

U.S. Treasury Securities
(Matured on January 8, 2026)

$

241,229,451

$

58,588

$

241,288,039

During the year ended December 31, 2025, the Company did not withdraw any interest income from the Trust Account.

Gross 

  ​ ​ ​

  ​ ​ ​

Amortized 

  ​ ​ ​

Holding 

  ​ ​ ​

  ​ ​ ​ ​

Held To Maturity

  ​ ​ ​ ​

Cost

  ​ ​ ​ ​

Gain

  ​ ​ ​ ​

Fair Value

December 31, 2025

 

U.S. Treasury Securities
(Matured on January 8, 2026)

$

241,229,451

$

58,588

$

241,288,039

During the period from June 14, 2014 (inception) through December 31, 2024, the Company did not withdraw any interest income from the Trust Account.

Gross 

  ​ ​ ​

  ​ ​ ​

Amortized 

  ​ ​ ​

Holding 

  ​ ​ ​

  ​ ​ ​ ​

Held To Maturity

  ​ ​ ​ ​ ​

Cost

  ​ ​ ​ ​ ​

Loss

  ​ ​ ​ ​

Fair Value

December 31, 2024

 

U.S. Treasury Securities
(Matured on June 12, 2025)

$

231,643,260

$

(128,995)

$

231,514,265