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OIL AND NATURAL GAS PROPERTIES AND ASSET RETIREMENT OBLIGATIONS (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 45 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Mar. 31, 2025
Sep. 30, 2024
Oil and Natural Gas Properties [Line Items]            
Proceeds from the sale of oil and natural gas assets     $ 282 $ 451    
Impairment of assets $ 200 $ 599 865 2,276    
Abandonment and reclamation cost, cash deposit         $ 975  
Unused deposit, current 239   239     $ 527
Unused deposit, non-current 227   227      
Receivables, non-current 54   54      
Kaybob, Alberta, Canada | Barnwell Industries Inc            
Oil and Natural Gas Properties [Line Items]            
Proceeds from the sale of oil and natural gas assets   441        
Oil and natural gas            
Oil and Natural Gas Properties [Line Items]            
Impairment of assets 200 599 865 2,276    
Oil and natural gas | United States            
Oil and Natural Gas Properties [Line Items]            
Impairment of assets $ 200 112 $ 865 112    
Oil and natural gas | Canada            
Oil and Natural Gas Properties [Line Items]            
Impairment of assets   $ 487   $ 2,164