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Employee Benefit Plans - Summary of Amounts Expected to be Recognized in Net Periodic Cost in Coming Year (Detail) - Supplemental Employee Retirement Plan [Member] - USD ($)
Dec. 31, 2025
Dec. 31, 2024
Amounts Expected to be Recognized in Net Periodic Cost in the Coming Year    
(Gain) loss recognition $ (16,581) $ (65,932)
Prior service cost recognition 0 0
Net initial obligation (asset) recognition $ 0 $ 0