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Derivative Financial Instruments - Schedule of Notional Amount and Fair Value of Derivative Instruments Included on Company's Consolidated Balance Sheets on a net Basis (Details) - USD ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Mar. 31, 2025
Derivatives Designated as Hedging Instruments [Member]      
Derivatives Fair Value [Line Items]      
Notional Amount     $ 30,000
Estimated Fair Value Gain (Loss) [1] $ 169 $ 678  
Derivatives Designated as Hedging Instruments [Member] | Fair Value Hedging [Member]      
Derivatives Fair Value [Line Items]      
Notional Amount     $ 10,000
Estimated Fair Value Gain (Loss) [1]   69  
Derivatives Designated as Hedging Instruments [Member] | Fair Value Hedging [Member] | Interest Rate Swaps Related To Fixed Rate Indirect Consumer Loans [Member]      
Derivatives Fair Value [Line Items]      
Notional Amount   30,000  
Estimated Fair Value Gain (Loss) [1]   69  
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member]      
Derivatives Fair Value [Line Items]      
Estimated Fair Value Gain (Loss) [1] 169 609  
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Interest Rate Swaps Related to Interest-Bearing Liabilities [Member]      
Derivatives Fair Value [Line Items]      
Notional Amount 40,000 40,000  
Estimated Fair Value Gain (Loss) [1] (45) 609  
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Interest Rate Floors [Member]      
Derivatives Fair Value [Line Items]      
Notional Amount 20,000    
Estimated Fair Value Gain (Loss) [1] 214    
Derivatives Not Designated as Hedging Instruments [Member]      
Derivatives Fair Value [Line Items]      
Estimated Fair Value Gain (Loss) [1] (61) (36)  
Derivatives Not Designated as Hedging Instruments [Member] | Interest Rate Floors [Member]      
Derivatives Fair Value [Line Items]      
Notional Amount 25,000 50,000  
Estimated Fair Value Gain (Loss) [1] 1 18  
Derivatives Not Designated as Hedging Instruments [Member] | Credit Risk Participation Agreements [Member]      
Derivatives Fair Value [Line Items]      
Notional Amount 15,198 15,198  
Estimated Fair Value Gain (Loss) [1] $ (62) $ (54)  
[1] Derivatives in a gain position are recorded as other assets and derivatives in a loss position are recorded as other liabilities in the consolidated balance sheets.