Fair Value Measurement - Schedule of Fair Values and Carrying Amounts, Significant Financial Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest bearing deposits in banks	$ 13,943	$ 14,690
Loans held for sale	6,224	3,070
Accrued interest receivable	3,400	4,000
Deposits
Noninterest bearing	222,928	250,992
Interest bearing	558,658	765,689
Time	271,722	288,922
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	30,507	77,666
Interest bearing deposits in banks	0	0
Investment securities	4,294	4,145
Loans held for sale	0	0
Accrued interest receivable	0	0
Deposits
Noninterest bearing	222,928	250,992
Interest bearing	558,658	765,689
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	13,943	14,690
Investment securities	249,883	261,738
Loans held for sale	6,304	3,110
Accrued interest receivable	1,319	1,395
Deposits
Noninterest bearing	0	0
Interest bearing	0	0
Time	269,895	286,637
Borrowed funds
Short-term	76,391	9,990
Long-term	170,834	55,914
Subordinated notes	15,266	15,302
Accrued interest payable	2,682	1,666
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	3,454	4,014
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	395,301	373,594
Significant Unobservable Inputs (Level 3) | Construction Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	92,967	85,678
Significant Unobservable Inputs (Level 3) | Commercial Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	369,827	373,279
Significant Unobservable Inputs (Level 3) | Commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	37,284	37,136
Significant Unobservable Inputs (Level 3) | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	2,481	2,536
Significant Unobservable Inputs (Level 3) | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	29,474	74,812
Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	30,507	77,666
Interest bearing deposits in banks	13,943	14,690
Investment securities	254,177	265,883
Loans held for sale	6,224	3,070
Accrued interest receivable	4,773	5,409
Nonmarketable equity securities	9,382	3,199
Deposits
Noninterest bearing	222,928	250,992
Interest bearing	558,658	765,689
Time	271,722	288,922
Borrowed funds
Short-term	76,400	10,000
Long-term	170,696	55,696
Subordinated notes	16,256	16,239
Accrued interest payable	2,682	1,666
Carrying Amount | Residential real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	436,313	414,500
Carrying Amount | Construction Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	94,728	87,588
Carrying Amount | Commercial Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	397,482	401,753
Carrying Amount | Commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	40,168	40,165
Carrying Amount | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	2,522	2,589
Carrying Amount | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	29,814	76,861
Estimated Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	30,507	77,666
Interest bearing deposits in banks	13,943	14,690
Investment securities	254,177	265,883
Loans held for sale	6,304	3,110
Accrued interest receivable	4,773	5,409
Deposits
Noninterest bearing	222,928	250,992
Interest bearing	558,658	765,689
Time	269,895	286,637
Borrowed funds
Short-term	76,391	9,990
Long-term	170,834	55,914
Subordinated notes	15,266	15,302
Accrued interest payable	2,682	1,666
Estimated Fair Value | Residential real estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	395,301	373,594
Estimated Fair Value | Construction Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	92,967	85,678
Estimated Fair Value | Commercial Real Estate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	369,827	373,279
Estimated Fair Value | Commercial
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	37,284	37,136
Estimated Fair Value | Consumer
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	2,481	2,536
Estimated Fair Value | Municipal
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans, net	$ 29,474	$ 74,812