Loans Receivable and Allowance for Loan Losses (Loan Portfolio Summarized by the Past Due Status) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
Non-Accrual	$ 618	$ 643
Total Past Due and Non-Accrual	2,516	1,208
Total Loans	1,432,867	1,356,040
Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	6,614
Total Loans		8,304
Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,423,737	1,346,528
Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1,678	431
Financing Receivables, 61 to 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	220	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	441	469
Total Past Due and Non-Accrual	1,154	634
Total Loans	295,125	273,040
Residential Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	571
Total Loans		784
Residential Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	293,400	271,622
Residential Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	649	155
Residential Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	64	10
Commercial Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual		103
Total Past Due and Non-Accrual	365	103
Total Loans	644,607	628,724
Commercial Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	2,284
Total Loans		3,285
Commercial Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	641,958	625,336
Commercial Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	365
Agricultural Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due and Non-Accrual		25
Total Loans	69,356	61,925
Agricultural Real Estate Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	2,336
Total Loans		1,918
Agricultural Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	67,020	59,982
Agricultural Real Estate Loans [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due		25
Construction Real Estate Loans [Member]
Financing Receivable, Past Due [Line Items]
Total Past Due and Non-Accrual	26
Total Loans	26,637	21,990
Construction Real Estate Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	26,611	21,990
Construction Real Estate Loans [Member] | Financing Receivables, 61 to 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	26
Commercial [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	12	16
Total Past Due and Non-Accrual	13	32
Total Loans	184,729	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	184,716	185,801
Commercial [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	1	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	35,733	37,930
Other Agricultural Loans [Member] | Purchased Credit-Impaired [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	1,423
Total Loans		2,119
Other Agricultural Loans [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	34,310	35,811
Consumer Loans To Individuals [Member]
Financing Receivable, Past Due [Line Items]
Non-Accrual	165	55
Total Past Due and Non-Accrual	958	414
Total Loans	176,680	146,400
Consumer Loans To Individuals [Member] | Financial Asset, Not Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	175,722	145,986
Consumer Loans To Individuals [Member] | Financing Receivables, 31 to 60 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	663	248
Consumer Loans To Individuals [Member] | Financing Receivables, 61 to 90 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Past Due	$ 130	$ 111