Loans and Allowance for Credit Losses - Aging (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Past due financing receivables
Current Balance	$ 1,297,504
Total Financing Receivables	1,297,504	$ 1,232,866
Recorded Investment >90 Days Past Due and Accruing		45
Unamortized discounts on acquired loans		1,700
Current
Past due financing receivables
Current Balance	1,294,202
Current Balance		1,230,502
Nonaccrual loans		623
Past Due
Past due financing receivables
Current Balance	3,302
Current Balance		2,364
30-59 Days Past Due
Past due financing receivables
Current Balance	2,401
Current Balance		1,477
Nonaccrual loans	346	916
60-89 Days Past Due
Past due financing receivables
Current Balance	236
Current Balance		227
Nonaccrual loans	663
Greater than 90 Days Past Due
Past due financing receivables
Current Balance	665
Current Balance		660
Nonaccrual loans	899	615
Nonresidential
Past due financing receivables
Current Balance	782,100
Home Equity Loans
Past due financing receivables
Current Balance	38,729
Real Estate Mortgage \| Construction and Land Development
Past due financing receivables
Current Balance	113,332
Total Financing Receivables	113,332	117,296
Real Estate Mortgage \| Construction and Land Development \| Current
Past due financing receivables
Current Balance	113,118
Current Balance		117,037
Real Estate Mortgage \| Construction and Land Development \| Past Due
Past due financing receivables
Current Balance	214
Current Balance		259
Real Estate Mortgage \| Construction and Land Development \| 30-59 Days Past Due
Past due financing receivables
Current Balance	141
Real Estate Mortgage \| Construction and Land Development \| Greater than 90 Days Past Due
Past due financing receivables
Current Balance	73
Current Balance		259
Real Estate Mortgage \| Residential Real Estate
Past due financing receivables
Current Balance	235,106
Total Financing Receivables	235,106	229,904
Real Estate Mortgage \| Residential Real Estate \| Current
Past due financing receivables
Current Balance	234,568
Current Balance		228,679
Real Estate Mortgage \| Residential Real Estate \| Past Due
Past due financing receivables
Current Balance	538
Current Balance		1,225
Real Estate Mortgage \| Residential Real Estate \| 30-59 Days Past Due
Past due financing receivables
Current Balance	414
Current Balance		949
Real Estate Mortgage \| Residential Real Estate \| 60-89 Days Past Due
Past due financing receivables
Current Balance	124
Current Balance		225
Real Estate Mortgage \| Residential Real Estate \| Greater than 90 Days Past Due
Past due financing receivables
Current Balance		51
Real Estate Mortgage \| Nonresidential
Past due financing receivables
Current Balance	782,100
Total Financing Receivables	782,100	722,620
Real Estate Mortgage \| Nonresidential \| Current
Past due financing receivables
Current Balance	779,636
Current Balance		721,841
Real Estate Mortgage \| Nonresidential \| Past Due
Past due financing receivables
Current Balance	2,464
Current Balance		779
Real Estate Mortgage \| Nonresidential \| 30-59 Days Past Due
Past due financing receivables
Current Balance	1,769
Current Balance		474
Real Estate Mortgage \| Nonresidential \| 60-89 Days Past Due
Past due financing receivables
Current Balance	103
Real Estate Mortgage \| Nonresidential \| Greater than 90 Days Past Due
Past due financing receivables
Current Balance	592
Current Balance		305
Real Estate Mortgage \| Home Equity Loans
Past due financing receivables
Current Balance	38,729
Total Financing Receivables	38,729	31,445
Recorded Investment >90 Days Past Due and Accruing		45
Real Estate Mortgage \| Home Equity Loans \| Current
Past due financing receivables
Current Balance	38,652
Current Balance		31,346
Real Estate Mortgage \| Home Equity Loans \| Past Due
Past due financing receivables
Current Balance	77
Current Balance		99
Real Estate Mortgage \| Home Equity Loans \| 30-59 Days Past Due
Past due financing receivables
Current Balance	77
Current Balance		54
Real Estate Mortgage \| Home Equity Loans \| Greater than 90 Days Past Due
Past due financing receivables
Current Balance		45
Commercial
Past due financing receivables
Current Balance	124,373
Total Financing Receivables	124,373	128,553
Commercial \| Current
Past due financing receivables
Current Balance	124,364
Current Balance		128,553
Commercial \| Past Due
Past due financing receivables
Current Balance	9
Commercial \| 60-89 Days Past Due
Past due financing receivables
Current Balance	9
Consumer and Other
Past due financing receivables
Current Balance	3,864
Total Financing Receivables	3,864	3,048
Consumer and Other \| Current
Past due financing receivables
Current Balance	$ 3,864
Current Balance		3,046
Consumer and Other \| Past Due
Past due financing receivables
Current Balance		2
Consumer and Other \| 60-89 Days Past Due
Past due financing receivables
Current Balance		$ 2

Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease.

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