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Loans- Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Financing Receivable, Past Due [Line Items]
Total loans	$ 928,462	$ 920,042
Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	100.00%	100.00%
Total commercial and industrial
Financing Receivable, Past Due [Line Items]
Total loans	$ 63,715	$ 53,347
Total commercial and industrial | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	6.90%	5.80%
Total commercial and industrial | Commercial and business loans
Financing Receivable, Past Due [Line Items]
Total loans	$ 63,653	$ 53,273
Total commercial and industrial | Commercial and business loans | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	6.90%	5.80%
Total commercial and industrial | Government program loans
Financing Receivable, Past Due [Line Items]
Total loans	$ 62	$ 74
Total commercial and industrial | Government program loans | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	0.01%	0.01%
Total real estate mortgage
Financing Receivable, Past Due [Line Items]
Total loans	$ 666,694	$ 646,709
Total real estate mortgage | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	71.80%	70.30%
Total real estate mortgage | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total loans	$ 419,422	$ 386,134
Total real estate mortgage | Commercial real estate | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	45.20%	42.00%
Total real estate mortgage | Residential mortgages
Financing Receivable, Past Due [Line Items]
Total loans	$ 247,248	$ 260,539
Total real estate mortgage | Residential mortgages | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	26.60%	28.30%
Total real estate mortgage | Home improvement and home equity loans
Financing Receivable, Past Due [Line Items]
Total loans	$ 24	$ 36
Total real estate mortgage | Home improvement and home equity loans | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	0.01%	0.01%
Real estate construction and development
Financing Receivable, Past Due [Line Items]
Total loans	$ 111,145	$ 127,944
Real estate construction and development | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	12.00%	13.90%
Agricultural loans
Financing Receivable, Past Due [Line Items]
Total loans	$ 49,462	$ 49,795
Agricultural loans | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	5.30%	5.40%
Installment and student loans
Financing Receivable, Past Due [Line Items]
Total loans	$ 37,446	$ 42,247
Installment and student loans | Credit Concentration Risk | Financing Receivable Benchmark
Financing Receivable, Past Due [Line Items]
Percentage of total loans (in percent)	4.00%	4.60%

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