Loans Receivable and Allowance for Loan Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Non-Accrual	$ 672	$ 643
Total Past Due and Non-Accrual	1,934	1,208
Total Loans	1,405,017	1,356,040
Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	6,631
Total Loans		8,304
Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,396,452	1,346,528
Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,119	431
Financing Receivables, 61 to 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	143	134
Financing Receivables, Greater than 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due and still accruing		91
Residential Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	456	469
Total Past Due and Non-Accrual	1,097	634
Total Loans	289,157	273,040
Residential Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	577
Total Loans		784
Residential Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	287,483	271,622
Residential Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	574	155
Residential Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	67	10
Commercial Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	49	103
Total Past Due and Non-Accrual	85	103
Total Loans	645,404	628,724
Commercial Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	2,685
Total Loans		3,285
Commercial Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	642,634	625,336
Commercial Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	36
Agricultural Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due and Non-Accrual	24	25
Total Loans	65,334	61,925
Agricultural Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	1,971
Total Loans		1,918
Agricultural Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	63,339	59,982
Agricultural Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	24	25
Construction Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due and Non-Accrual	27
Total Loans	21,856	21,990
Construction Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	21,829	21,990
Construction Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	27
Commercial [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	13	16
Total Past Due and Non-Accrual	22	32
Total Loans	187,206	186,031
Commercial [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Total Loans		198
Commercial [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	187,184	185,801
Commercial [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	9	3
Commercial [Member] | Financing Receivables, 61 to 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due		13
Commercial [Member] | Financing Receivables, Greater than 90 Days Past Due [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	36,092	37,930
Other Agricultural Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	1,398
Total Loans		2,119
Other Agricultural Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	34,694	35,811
Consumer Loans To Individuals [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	154	55
Total Past Due and Non-Accrual	679	414
Total Loans	159,968	146,400
Consumer Loans To Individuals [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	159,289	145,986
Consumer Loans To Individuals [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	449	248
Consumer Loans To Individuals [Member] | Financing Receivables, 61 to 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	$ 76	$ 111