​

  ​ ​ ​

March 31, 

  ​ ​ ​

December 31, 

​

  ​ ​ ​

2026

  ​ ​ ​

2025

​

  ​ ​ ​

(in thousands)

Accrued royalty payments

​

$

106

​

$

45

Accrued property taxes

​

88

​

352

Total

​

$

194

​

$

397