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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.

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name Accounting Standards Codification -Section 55 -Paragraph 10 -SubTopic 10 -Topic 825 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482881/825-10-55-10 + Details
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