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Summary of Significant Accounting Policies - Narrative (Details)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended 14 Months Ended
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Mar. 31, 2022
USD ($)
Sep. 30, 2023
USD ($)
segment
Sep. 30, 2022
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Sep. 30, 2023
USD ($)
shares
Aug. 16, 2022
shares
Subsidiary, Sale of Stock [Line Items]                  
Interest and fees on loans $ 15,555 $ 12,481   $ 42,252 $ 38,501        
Adjustment to net income 4,804 3,654   13,303 18,570        
Gain on sale of loans       1,244 9,387 $ 2,100      
Gain on sale of loans, net 357 1,923   $ 1,244 9,387 1,500      
Past due period after which loans are placed on nonaccrual status       90 days          
Common stock repurchase program, shares authorized to be purchased (in shares) | shares                 644,241
Stock repurchases (in shares) | shares               644,241  
Common stock repurchased, value $ 2,353 $ 214   $ 4,741 214     $ 5,900  
Number of reportable segments | segment       1          
Other Assets                  
Subsidiary, Sale of Stock [Line Items]                  
New loan trailing fee asset           2,300      
Out-of-Period Adjustment                  
Subsidiary, Sale of Stock [Line Items]                  
Interest and fees on loans     $ (800)            
Interest and fees on loans, net of tax     $ (600)            
Adjustment to net income           $ (900)      
Gain on sale of loans         1,200   $ 900    
Gain on sale of loans, net         $ 900   $ 600    
FinWise Bank                  
Subsidiary, Sale of Stock [Line Items]                  
Percentage of business acquired 100.00%     100.00%       100.00%