v3.26.1
Fair Value Measurement - Schedule of Fair Values and Carrying Amounts, Significant Financial Instruments (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Interest bearing deposits in banks $ 7,958 $ 8,955
Loans held for sale 5,073 4,172
Accrued interest receivable 4,200 5,500
Deposits    
Noninterest bearing 216,852 226,939
Interest bearing 585,321 725,996
Time 291,890 262,047
Quoted Prices in Active Markets for Identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 30,983 12,300
Interest bearing deposits in banks 0 0
Investment securities 5,070 4,881
Loans held for sale 0 0
Accrued interest receivable 0 0
Deposits    
Noninterest bearing 216,852 226,939
Interest bearing 585,321 725,996
Time 0 0
Borrowed funds    
Short-term 0 0
Long-term 0 0
Subordinated notes 0 0
Accrued interest payable 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Residential real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Construction real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Consumer    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Significant Other Observable Inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Interest bearing deposits in banks 7,980 8,955
Investment securities 302,912 323,412
Loans held for sale 5,143 4,232
Accrued interest receivable 1,463 1,488
Deposits    
Noninterest bearing 0 0
Interest bearing 0 0
Time 290,973 261,693
Borrowed funds    
Short-term 20,999 15,364
Long-term 316,212 273,014
Subordinated notes 17,486 16,799
Accrued interest payable 2,637 2,981
Significant Other Observable Inputs (Level 2) | Residential real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Significant Other Observable Inputs (Level 2) | Construction real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Significant Other Observable Inputs (Level 2) | Commercial real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Significant Other Observable Inputs (Level 2) | Commercial    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Significant Other Observable Inputs (Level 2) | Consumer    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Significant Other Observable Inputs (Level 2) | Municipal    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 0 0
Significant Unobservable Inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Interest bearing deposits in banks 0 0
Investment securities 0 0
Loans held for sale 0 0
Accrued interest receivable 4,194 5,499
Deposits    
Noninterest bearing 0 0
Interest bearing 0 0
Time 0 0
Borrowed funds    
Short-term 0 0
Long-term 0 0
Subordinated notes 0 0
Accrued interest payable 0 0
Significant Unobservable Inputs (Level 3) | Residential real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 463,545 451,963
Significant Unobservable Inputs (Level 3) | Construction real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 97,881 102,183
Significant Unobservable Inputs (Level 3) | Commercial real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 452,600 430,962
Significant Unobservable Inputs (Level 3) | Commercial    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 29,689 30,119
Significant Unobservable Inputs (Level 3) | Consumer    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 2,357 2,379
Significant Unobservable Inputs (Level 3) | Municipal    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 31,815 115,749
Carrying Amount    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 30,983 12,300
Interest bearing deposits in banks 7,958 8,955
Investment securities 307,982 328,293
Loans held for sale 5,073 4,172
Accrued interest receivable 5,657 6,987
Nonmarketable equity securities 13,720 12,283
Deposits    
Noninterest bearing 216,852 226,939
Interest bearing 585,321 725,996
Time 291,890 262,047
Borrowed funds    
Short-term 21,000 15,500
Long-term 316,075 270,981
Subordinated notes 16,324 16,307
Accrued interest payable 2,637 2,981
Carrying Amount | Residential real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 485,411 471,932
Carrying Amount | Construction real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 98,514 103,168
Carrying Amount | Commercial real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 461,857 441,958
Carrying Amount | Commercial    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 30,307 30,922
Carrying Amount | Consumer    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 2,383 2,413
Carrying Amount | Municipal    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 32,100 118,000
Estimated Fair Value    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 30,983 12,300
Interest bearing deposits in banks 7,980 8,955
Investment securities 307,982 328,293
Loans held for sale 5,143 4,232
Accrued interest receivable 5,657 6,987
Deposits    
Noninterest bearing 216,852 226,939
Interest bearing 585,321 725,996
Time 290,973 261,693
Borrowed funds    
Short-term 20,999 15,364
Long-term 316,212 273,014
Subordinated notes 17,486 16,799
Accrued interest payable 2,637 2,981
Estimated Fair Value | Residential real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 463,545 451,963
Estimated Fair Value | Construction real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 97,881 102,183
Estimated Fair Value | Commercial real estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 452,600 430,962
Estimated Fair Value | Commercial    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 29,689 30,119
Estimated Fair Value | Consumer    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net 2,357 2,379
Estimated Fair Value | Municipal    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Loans, net $ 31,815 $ 115,749