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Loans and Asset Quality - Narrative (Details) - USD ($)	12 Months Ended
Loans and Asset Quality - Narrative (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan origination fees		$ 1,700,000	$ 1,400,000
Accrued interest		6,900,000	6,800,000
Allowance for credit losses	$ 20,628,000	21,731,000	21,336,000	$ 19,176,000
Loans charge-off	0
TDRs that subsequently defaulted	0
Loans held for investment		2,075,013,000	1,992,858,000
Doubtful
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held for investment		0	0
Loss
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held for investment		0	0
TDRs
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses	101,000
Unfunded commitment
Financing Receivable, Allowance for Credit Loss [Line Items]
Allowance for credit losses	$ 0	642,000	442,000
Other commitments		509,600,000	372,000,000.0
Standby letters of credit
Financing Receivable, Allowance for Credit Loss [Line Items]
Other commitments		$ 11,900,000	$ 15,400,000