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Senior Debt and Subordinated Debentures - Narrative (Details)
12 Months Ended
Sep. 15, 2022
USD ($)
Nov. 12, 2021
USD ($)
Dec. 31, 2024
USD ($)
quarter
$ / security
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Debt Instrument [Line Items]          
Interest expense     $ 3,665,000 $ 3,652,000 $ 1,971,000
Prepayment penalty fee percentage 2.00%        
Subordinated Debentures          
Debt Instrument [Line Items]          
Aggregate principal amount   $ 35,000,000      
Basis spread on variable rate (less)   2.10%      
Debt instrument, interest rate, stated percentage   3.13%      
Interest expense     1,239,000 1,239,000 1,239,000
Senior Debt          
Debt Instrument [Line Items]          
Aggregate principal amount $ 30,000,000        
Basis spread on variable rate (less) (0.50%)        
Interest expense     $ 2,059,000 2,053,000 544,000
Junior Subordinated Debentures          
Debt Instrument [Line Items]          
Basis spread on variable rate (less)     1.60%    
Debt instrument, interest rate, stated percentage     6.52%    
Interest expense     $ 367,000 $ 360,000 $ 188,000
Percentage of trust preferred securities eligible as Tier 1 capital     25.00%    
Redemption period     90 days    
Percentage of notes outstanding required to call payment     25.00%    
Number of consecutive quarterly periods of nonpayment required to call notes | quarter     20    
Liquidation value per security | $ / security     1,000    
Service 1st Bank | Junior Subordinated Debentures          
Debt Instrument [Line Items]          
Aggregate principal amount     $ 5,155,000