v3.26.1
INVESTMENT SECURITIES - Other (Details) - USD ($)
1 Months Ended 12 Months Ended
Sep. 30, 2018
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Jul. 31, 2024
Investment Securities          
Securities available for sale, amortized cost   $ 432,167,000 $ 418,935,000    
Debt Securities, available-for-sale and held-to-maturity, allowance for credit loss   0      
Securities held to maturity, amortized cost   $ 7,000,000 7,000,000   $ 2,000,000
Available-for-sale, securities in unrealized loss positions, depreciation from amortized cost percentage   6.60%      
Held-to-maturity, securities in unrealized loss positions, depreciation from amortized cost percentage   25.10%      
Debt securities, available-for-sale, realized gain   $ 52,000 133,000 $ 79,000  
Debt securities, available-for-sale, realized loss   146,000 101,000 193,000  
Investment, number of shares acquired 90,000        
Investment ownership percentage 5.00%        
Payments to acquire other investments $ 1,900,000        
Equity securities, unrealized gain (loss)   149,000 (374,000) (207,000)  
Equity securities, unrealized loss     374,000 207,000  
Distributions from the investment       0  
Equity securities without readily determinable fair value, impairment loss, annual amount   1,000,000 887,000    
Peoples Bancorp Inc | Class B shares of VISA          
Investment Securities          
Class B shares of VISA, amortized costs   0      
Class B shares of VISA, gross gain   157,000      
Collateral Pledged          
Investment Securities          
Securities available for sale, amortized cost   93,100,000      
Securities, available-for-sale, fair value   92,300,000      
Limited Partnership Interest, Technology Fund          
Investment Securities          
Distributions from the investment   54,000 35,000    
Equity securities without readily determinable fair value, impairment loss, annual amount   0 0 $ 0  
Limited Partnership Interest, Technology Fund | Other Liabilities          
Investment Securities          
Investment company, financial support to investee contractually required, not provided, amount   237,000 380,000    
Limited Partnership Interest, Technology Fund | Other Assets          
Investment Securities          
Equity securities without readily determinable fair value, amount   $ 910,000 $ 965,000