Securities - Narrative (Details)	3 Months Ended
	Mar. 31, 2024 USD ($) security	Mar. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized cost	$ 1,400,215,000		$ 1,372,575,000
Fair Value	1,275,520,000		1,248,439,000
Realized tax expense (benefit) gain (loss)	$ 0	$ 0
Securities unrealized loss | security	391
Allowance for credit loss on available for sale debt securities	$ 0
Restricted stock, at cost	16,357,000		5,964,000
Asset Pledged as Collateral
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized cost	827,500,000		826,500,000
Fair Value	740,200,000		742,500,000
Federal Home Loan Bank (FHLB)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Restricted stock, at cost	16,300,000		5,900,000
Community Bankers' Bank
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Restricted stock, at cost	50,000		50,000
U.S. Treasuries and government agencies
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized cost	196,742,000		197,026,000
Fair Value	$ 177,531,000		179,071,000
Securities in unrealized loss positions | security	12
Residential mortgage backed - agency
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized cost	$ 47,108,000		47,074,000
Fair Value	$ 42,994,000		42,238,000
Securities in unrealized loss positions | security	16
Commercial Mortgage Backed – Agency Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities in unrealized loss positions | security	14
State and Municipal Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Securities in unrealized loss positions | security	202
Residential mortgage backed - non-agency
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized cost	$ 312,730,000		284,826,000
Fair Value	$ 296,006,000		266,031,000
Securities in unrealized loss positions | security	90
Commercial mortgage backed - non-agency
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized cost	$ 176,385,000		183,454,000
Fair Value	$ 170,399,000		177,061,000
Securities in unrealized loss positions | security	32
Asset-backed
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized cost	$ 83,742,000		79,315,000
Fair Value	$ 82,858,000		77,936,000
Securities in unrealized loss positions | security	21
Other
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Amortized cost	$ 14,179,000		9,500,000
Fair Value	$ 12,719,000		$ 8,014,000
Securities in unrealized loss positions | security	4