Loans - Risk category of loans by loan segment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	$ 3,380,082	$ 2,819,472
Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	3,326,556	2,747,501
Watch
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	22,759	49,330
Substandard
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	30,767	22,641
Commercial
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	412,448	360,169
Commercial | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	396,736	336,939
Commercial | Watch
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	5,439	8,718
Commercial | Substandard
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	10,273	14,512
Paycheck Protection Program (PPP), CARES Act
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	1,192	26,162
Paycheck Protection Program (PPP), CARES Act | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	1,192	26,162
Construction and Land Development
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	335,557	281,474
Construction and Land Development | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	335,447	281,344
Construction and Land Development | Substandard
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	110	130
HELOC and 1-4 Family Junior Mortgage
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	29,981	31,260
HELOC and 1-4 Family Junior Mortgage | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	29,981	30,327
HELOC and 1-4 Family Junior Mortgage | Substandard
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals		933
1st REM - 1-4 Family
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	51,924	48,713
1st REM - 1-4 Family | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	51,246	48,024
1st REM - 1-4 Family | Watch
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	678	689
LOCs and 2nd REM - Rentals
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	25,174	21,641
LOCs and 2nd REM - Rentals | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	25,164	21,625
LOCs and 2nd REM - Rentals | Watch
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	10	16
1st REM - Rentals
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	234,023	203,703
1st REM - Rentals | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	233,743	203,246
1st REM - Rentals | Substandard
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	280	457
Multifamily
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	1,230,509	910,243
Multifamily | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	1,230,509	910,243
CRE Owner Occupied
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	151,088	111,096
CRE Owner Occupied | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	149,421	108,675
CRE Owner Occupied | Substandard
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	1,667	2,421
CRE Non-owner Occupied
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	900,691	818,569
CRE Non-owner Occupied | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	865,622	774,474
CRE Non-owner Occupied | Watch
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	16,632	39,907
CRE Non-owner Occupied | Substandard
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	18,437	4,188
Consumer and other
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	7,495	6,442
Consumer and other | Pass
Risk category of loans by loan segment, based on the most recent analysis performed by management
Totals	$ 7,495	$ 6,442