Fair Value Measurements and Disclosures - Carrying value and estimated fair value of financial instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Fair Value Measurements and Disclosures
Cash and due from banks	$ 24,054	$ 19,581
Available for sale securities	332,425	298,116
Held to maturity securities, net	73,470	82,435
Loans, net	272,855	259,500
Non-interest bearing	177,059	172,909
Interest bearing	359,173	358,151
Time deposits	35,829	37,128
Borrowings from Federal Home Loan Bank	38,500	800
Level 1
Fair Value Measurements and Disclosures
Cash and due from banks	24,054	19,581
Available for sale securities	0	0
Held to maturity securities, net	0	0
Loans, net	0	0
Non-interest bearing	177,059	172,909
Interest bearing	0	0
Time deposits	0	0
Borrowings from Federal Home Loan Bank	0	0
Level 2
Fair Value Measurements and Disclosures
Cash and due from banks	0	0
Available for sale securities	332,425	298,116
Held to maturity securities, net	73,470	82,435
Loans, net	0	0
Non-interest bearing	0	0
Interest bearing	0	0
Time deposits	0	0
Borrowings from Federal Home Loan Bank	38,500	800
Level 3
Fair Value Measurements and Disclosures
Cash and due from banks	0	0
Available for sale securities	0	0
Held to maturity securities, net	0	0
Loans, net	272,855	259,500
Non-interest bearing	0	0
Interest bearing	359,173	358,151
Time deposits	35,829	37,128
Borrowings from Federal Home Loan Bank	0	0
Carrying Amount
Fair Value Measurements and Disclosures
Cash and due from banks	24,054	19,581
Available for sale securities	332,425	298,116
Held to maturity securities, net	81,982	91,052
Loans, net	274,062	260,767
Non-interest bearing	177,059	172,909
Interest bearing	396,373	393,934
Time deposits	36,345	37,586
Borrowings from Federal Home Loan Bank	$ 38,500	$ 800

Fair value portion of interest bearing deposits.

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Fair value portion of non-interest bearing deposits.

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Fair value portion of time deposits.

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Amount excluding accrued interest, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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