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Borrowings and Line of Credit (Narrative) (Details) - USD ($)
1 Months Ended 12 Months Ended
Jun. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
May 01, 2018
Securities sold under agreements to repurchase   $ 5,100,000 $ 5,800,000  
Carrying value of securities pledged as collateral   10,100,000 7,600,000  
Carrying value of securities pledged to Federal Home Loan Bank   0 0  
Federal funds purchased   0 0  
Repayment borrowings $ 374,000 1,097,000 289,718,000  
Securities sold under agreements to repurchase, average balance   5,700,000 6,200,000  
Securities sold under agreements to repurchase, maximum month-end balance   $ 7,300,000 8,400,000  
Loans Payable [Member]        
Principal amount       $ 500,000
Interest rate       4.75%
Outstanding borrowings     $ 396,000  
Maximum [Member]        
Securities sold under agreements to repurchase, maturity period   4 days    
Minimum [Member]        
Securities sold under agreements to repurchase, maturity period   1 day    
Revolving Credit Facility [Member]        
Line of credit facility, maximum borrowing capacity   $ 25,000,000.0    
Outstanding borrowings   7,500,000    
Remaining borrowing capacity   $ 17,500,000