v3.25.2
Loans Receivable and Allowance for Credit Losses (Summary of Amount of Loans in Each Category that were Individually and Collectively Evaluated for Impairment) (Details) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated $ 10,228,000 $ 10,022,000
Collectively evaluated 1,780,816,000 1,704,060,000
Total 1,791,044,000 1,714,082,000
Residential Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated 982,000 940,000
Collectively evaluated 331,649,000 329,916,000
Total 332,631,000 330,856,000
Commercial Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated 7,163,000 7,197,000
Collectively evaluated 729,806,000 709,678,000
Total 736,969,000 716,875,000
Agricultural Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Collectively evaluated 62,077,000 63,488,000
Total 62,077,000 63,488,000
Construction Real Estate Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated 50,000  
Collectively evaluated 67,963,000 53,020,000
Total 68,013,000 53,020,000
Commercial Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated 829,000 854,000
Collectively evaluated 228,353,000 211,137,000
Total 229,182,000 211,991,000
Other Agricultural Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Collectively evaluated 27,132,000 30,077,000
Total 27,132,000 30,077,000
Consumer Loans [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Individually evaluated 1,204,000 1,031,000
Collectively evaluated 333,836,000 306,744,000
Total $ 335,040,000 $ 307,775,000