v3.26.1
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Jun. 30, 2025
Jun. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Jul. 03, 2025
Pension Plan          
Related party transactions          
Number of Barnwell common stock held by the Pension Plan (in shares)   676,296   666,077  
KD Acquisition, LLLP          
Related party transactions          
Ownership interest acquired   19.60%      
KD Acquisition II, LP | Barnwell Industries Inc          
Related party transactions          
Ownership interest acquired   10.80%      
Related Party | Pension Plan          
Related party transactions          
Percent of common shares owned 5.00%        
Number of Barnwell common stock held by the Pension Plan (in shares)       666,077 520,350
Number of Barnwell common stock purchased by the Pension Plan (in shares)   676,296      
Related Party | Skadden, Arps, Slate, Meagher & Flom LLP          
Related party transactions          
Legal fees     $ 871    
Accounts payable   $ 0   $ 246