v3.26.1
INVESTMENT SECURITIES - Number of securities and aggregate depreciation (Details) - security
Jun. 30, 2026
Dec. 31, 2025
U.S. government and agency securities    
INVESTMENT SECURITIES    
Number of securities 2 2
Aggregate Depreciation (in percent) 6.06% 5.20%
Obligations of states and political subdivisions    
INVESTMENT SECURITIES    
Number of securities 6 7
Aggregate Depreciation (in percent) 3.90% 4.00%
Mortgage-backed securities    
INVESTMENT SECURITIES    
Number of securities 16 13
Aggregate Depreciation (in percent) 6.40% 7.42%