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Derivatives - Narrative (Details)
12 Months Ended
Dec. 31, 2021
USD ($)
derivative
Dec. 31, 2018
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2017
derivative
Derivative [Line Items]        
Borrowings $ 171,778,000   $ 238,324,000  
Net liability position 0   0  
Cash collateral pledged on derivatives $ 57,868,000   57,985,000  
Subordinated debt        
Derivative [Line Items]        
Number of derivative instruments | derivative 2     3
Borrowings $ 30,930,000      
Interest rate swaps        
Derivative [Line Items]        
Gain on canceled derivatives   $ 1,564,000    
Interest rate swaps | Subordinated debt        
Derivative [Line Items]        
Notional amount 30,000,000      
Fair value of contract of net liability balances of interest rate swaps $ 785,000   $ 1,909,000  
Interest rate swaps | LIBOR | Subordinated debt        
Derivative [Line Items]        
Derivative variable interest rate 2.08%      
Minimum        
Derivative [Line Items]        
Period to lock interest rate on mortgage loan commitments 45 days      
Maximum        
Derivative [Line Items]        
Period to lock interest rate on mortgage loan commitments 90 days