XML 62 R52.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Fair Values of Financial Instruments (Narrative) (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Transfers between fair value hierarchy $ 0 $ 0    
Total Loans Receivable 3,265,145,000 3,265,971,000 $ 3,317,402,000  
Allowance for credit losses 34,563,000 $ 28,882,000 33,608,000 $ 32,373,000
Fair Value, Recurring [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Liabilities 0   0  
Impaired Loans [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Losses (recoveries) on impaired loans 878,000,000,000   1,400,000  
(Level 3) Significant Unobservable Inputs [Member] | Impaired Loans [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Total Loans Receivable 28,700,000   27,800,000  
Allowance for credit losses $ 5,100,000   $ 4,200,000