v3.26.1
STOCK-BASED COMPENSATION PLANS - Summary of Nonvested Restricted Shares (Details) - Restricted Stock - $ / shares
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
STOCK-BASED COMPENSATION PLANS        
Nonvested at beginning of period, number of shares (in shares) 4,800      
Granted, number of shares (in shares) 3,900   0 0
Vested, number of shares (in shares) 2,730 3,950 6,100  
Forfeited, number of shares (in shares) 0      
Nonvested at end of period, number of shares (in shares) 5,970 4,800    
Nonvested at beginning of year, weighted average grant date fair value (in dollars per share) $ 43.4      
Granted, weighted average grant date fair value (in dollars per share) 37.9      
Vested, weighted average grant date fair value (in dollars per share) 55.63      
Forfeited, weighted average grant date fair value (in dollars per share) 0      
Nonvested at end of year, weighted average grant date fair value (in dollars per share) $ 34.22 $ 43.4