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Loans Receivable and Allowance for Loan Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Total Loans	$ 1,474,424	$ 1,356,040
Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	1,113	643
Total Past Due and Non-Accrual	3,221	1,208
Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	6,290	8,304
Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,464,913	1,346,528
Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,646	431
Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due and still accruing	462	134
Financing Receivables, Greater than 90 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due and still accruing		91
Residential Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	298,813	273,040
Residential Real Estate Loans [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	486	469
Total Past Due and Non-Accrual	896	634
Residential Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	567	784
Residential Real Estate Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	297,350	271,622
Residential Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	187	155
Residential Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due and still accruing	223	10
Commercial Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	651,544	628,724
Commercial Real Estate Loans [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	402	103
Total Past Due and Non-Accrual	807	103
Commercial Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	2,049	3,285
Commercial Real Estate Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	648,688	625,336
Commercial Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	405
Agricultural Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	68,915	61,925
Agricultural Real Estate Loans [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due and Non-Accrual	130	25
Agricultural Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	2,034	1,918
Agricultural Real Estate Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	66,751	59,982
Agricultural Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	130	25
Construction Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	32,469	21,990
Construction Real Estate Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	32,469	21,990
Commercial [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	187,257	186,031
Commercial [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	61	16
Total Past Due and Non-Accrual	132	32
Commercial [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	1,640	198
Commercial [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	185,485	185,801
Commercial [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	71	3
Commercial [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due and still accruing		13
Commercial [Member] | Financing Receivables, Greater than 90 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due and still accruing		91
Other Agricultural Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	35,277	37,930
Other Agricultural Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Total Loans		2,119
Other Agricultural Loans [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	35,277	35,811
Consumer Loans To Individuals [Member]
Financing Receivable, Past Due [Line Items]
Total Loans	200,149	146,400
Consumer Loans To Individuals [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	164	55
Total Past Due and Non-Accrual	1,256	414
Consumer Loans To Individuals [Member] | Financing Receivables, 1 to 30 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	198,893	145,986
Consumer Loans To Individuals [Member] | Financing Receivables, 31 to 60 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due	853	248
Consumer Loans To Individuals [Member] | Financing Receivables, 61 to 90 Days Past Due [Member] | Company Originated [Member]
Financing Receivable, Past Due [Line Items]
Past Due and still accruing	$ 239	$ 111

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