v3.26.1
Other operating income and expenses - Schedule of other operating income (Parenthetical) (Detail) - USD ($)
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Statement [Line Items]      
Gain loss related to export increase program $ 5,378 $ 43,911 $ 86,173
Payments received from farmout agreement     26,650,000
Oil and gas assets [member]      
Statement [Line Items]      
Disposals, property, plant and equipment     2,051
Farmout agreement [Member]      
Statement [Line Items]      
Disposals, intangible assets and goodwill     $ 170,000