v3.26.1
Fair Value Measurements (Tables) - Mountain Lake Acquisition Corp.
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
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

Schedule of Quantitative Information Regarding Market Assumptions of Public Share Rights   The following table presents the quantitative information regarding market assumptions used in the valuation of the Public Share Rights:

  ​ ​ ​

December 16,

 

2024

 

(Initial

 

Public

 

Offering)

 

Trade price of Unit

$

10.94

Risk-free rate

 

4.17

%

Market adjustment(1)

 

9.2

%

Fair value per share right

$

0.09

(1)

Market adjustment reflects additional factors not fully captured by low volatility selection, which may include likelihood of Business Combination occurring, market perception of lack of available or suitable targets, or possible post-acquisition decline of stock price prior to beginning of the exercise period. The adjustment is determined by comparing traded warrant prices to simulated model outputs.