XML 62 R47.htm IDEA: XBRL DOCUMENT v3.24.0.1
Significant Accounting Policies - Narrative (Details)
 3 Months Ended 12 Months Ended
Jan. 01, 2023
USD ($)
Dec. 31, 2023
USD ($)
unit
Sep. 30, 2023
USD ($)
Jun. 30, 2023
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Sep. 30, 2022
USD ($)
Jun. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Dec. 31, 2023
USD ($)
segment
unit
bankingCenter
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Variable Interest Entity [Line Items]                          
Number of banking centers | bankingCenter                   27      
Number of operating segments | segment                   1      
Number of reportable segments | segment                   1      
Foreclosed assets   $ 69,000       $ 0       $ 69,000 $ 0    
Goodwill, impairment                   $ 0 $ 0    
U.S. federal income tax expense (as a percent)                   21.00% 21.00% 21.00%  
Accounting Standards Update [Extensible Enumeration] Accounting Standards Update 2016-13 [Member]                   Accounting Standards Update 2016-13 [Member]    
Cumulative effect of change in accounting principal   (8,292,000) $ (8,021,000) $ (8,968,000) $ (9,598,000) (10,191,000) $ (10,186,000) $ (9,147,000) $ (7,392,000) $ (34,879,000) $ (36,916,000) $ (32,952,000)  
Allowance for credit losses $ 20,906,000 21,336,000       20,628,000       21,336,000 20,628,000 19,176,000 $ 17,951,000
Unfunded commitments                          
Variable Interest Entity [Line Items]                          
Allowance for credit losses $ 442,000 $ 442,000       0       442,000 0    
Retained Earnings                          
Variable Interest Entity [Line Items]                          
Cumulative effect of change in accounting principal                   (34,879,000) (36,916,000) $ (32,952,000)  
Impact of ASC 326 Adoption                          
Variable Interest Entity [Line Items]                          
Allowance for credit losses           278,000         278,000    
Impact of ASC 326 Adoption | Unfunded commitments                          
Variable Interest Entity [Line Items]                          
Allowance for credit losses           $ 442,000         $ 442,000    
Impact of ASC 326 Adoption | Retained Earnings                          
Variable Interest Entity [Line Items]                          
Cumulative effect of change in accounting principal         $ 569,000         $ 569,000      
Restricted stock | Year 1                          
Variable Interest Entity [Line Items]                          
Vesting percentage (as a percent)                   20.00%      
Restricted stock | Year 2                          
Variable Interest Entity [Line Items]                          
Vesting percentage (as a percent)                   20.00%      
Restricted stock | Year 3                          
Variable Interest Entity [Line Items]                          
Vesting percentage (as a percent)                   20.00%      
Restricted stock | Year 4                          
Variable Interest Entity [Line Items]                          
Vesting percentage (as a percent)                   20.00%      
Restricted stock | Year 5                          
Variable Interest Entity [Line Items]                          
Vesting percentage (as a percent)                   20.00%      
Minimum                          
Variable Interest Entity [Line Items]                          
Estimated useful lives of the assets (in years)   3 years               3 years      
Minimum | Multifamily | Real estate                          
Variable Interest Entity [Line Items]                          
Number of units | unit   5               5      
Maximum                          
Variable Interest Entity [Line Items]                          
Estimated useful lives of the assets (in years)   40 years               40 years