Loans and Allowance for Loan Losses ("ALLL") - Internal Risk Ratings (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]
2022	$ 297,233
2021	1,086,026
2020	574,140
2019	324,390
2018	231,377
2017 and Prior	179,454
Revolving loans	1,452,020
Revolving loans converted to term loans	204,928
Total Loans Receivable	4,349,568	$ 4,256,213
Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	5,322
2020	316
2019	24
2018	565
2017 and Prior	1,896
Revolving loans	19,782
Revolving loans converted to term loans	5,166
Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2022	284,907
2021	1,049,086
2020	569,073
2019	318,635
2018	222,158
2017 and Prior	172,897
Revolving loans	1,385,444
Revolving loans converted to term loans	144,552
Total Loans Receivable	4,146,752
Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	27,427
2020	1,568
2019	2,621
2018	7,860
2017 and Prior	810
Revolving loans	36,997
Revolving loans converted to term loans	52,271
Total Loans Receivable	129,554
Substandard \| Accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	12,326
2021	4,191
2020	3,183
2019	3,110
2018	795
2017 and Prior	3,852
Revolving loans	9,823
Revolving loans converted to term loans	2,939
Total Loans Receivable	40,219
Substandard \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	5,322
2020	316
2019	24
2018	564
2017 and Prior	1,895
Revolving loans	17,305
Revolving loans converted to term loans	5,166
Total Loans Receivable	30,592
Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	2,451
Revolving loans converted to term loans	0
Total Loans Receivable	2,451
Commercial
Financing Receivable, Credit Quality Indicator [Line Items]
2022	86,847
2021	374,485
2020	135,543
2019	66,303
2018	64,528
2017 and Prior	30,489
Revolving loans	0
Revolving loans converted to term loans	44,579
Total Loans Receivable	802,774	843,024
Commercial \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	1,572
2020	13
2019	24
2018	482
2017 and Prior	760
Revolving loans	0
Revolving loans converted to term loans	1,914
Commercial \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2022	85,347
2021	372,703
2020	133,962
2019	62,737
2018	62,941
2017 and Prior	29,629
Revolving loans	0
Revolving loans converted to term loans	37,196
Total Loans Receivable	784,515
Commercial \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	1,568
2019	1,127
2018	324
2017 and Prior	49
Revolving loans	0
Revolving loans converted to term loans	3,522
Total Loans Receivable	6,590
Commercial \| Substandard \| Accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	1,500
2021	210
2020	0
2019	2,415
2018	782
2017 and Prior	51
Revolving loans	0
Revolving loans converted to term loans	1,947
Total Loans Receivable	6,905
Commercial \| Substandard \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	1,572
2020	13
2019	24
2018	481
2017 and Prior	760
Revolving loans	0
Revolving loans converted to term loans	1,914
Total Loans Receivable	4,764
Commercial \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Commercial line of credit
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	678,127
Revolving loans converted to term loans	0
Total Loans Receivable	678,127	617,398
Commercial line of credit \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	10,987
Revolving loans converted to term loans	0
Commercial line of credit \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	649,230
Revolving loans converted to term loans	0
Total Loans Receivable	649,230
Commercial line of credit \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	15,504
Revolving loans converted to term loans	0
Total Loans Receivable	15,504
Commercial line of credit \| Substandard \| Accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	2,431
Revolving loans converted to term loans	0
Total Loans Receivable	2,431
Commercial line of credit \| Substandard \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	10,962
Revolving loans converted to term loans	0
Total Loans Receivable	10,962
Commercial line of credit \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Energy
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	1,382
2020	264
2019	1,557
2018	13
2017 and Prior	0
Revolving loans	267,872
Revolving loans converted to term loans	221
Total Loans Receivable	271,309	278,579
Energy \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	8,795
Revolving loans converted to term loans	0
Energy \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	1,382
2020	264
2019	63
2018	0
2017 and Prior	0
Revolving loans	230,193
Revolving loans converted to term loans	221
Total Loans Receivable	232,123
Energy \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	1,494
2018	0
2017 and Prior	0
Revolving loans	21,493
Revolving loans converted to term loans	0
Total Loans Receivable	22,987
Energy \| Substandard \| Accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	13
2017 and Prior	0
Revolving loans	7,392
Revolving loans converted to term loans	0
Total Loans Receivable	7,405
Energy \| Substandard \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	6,343
Revolving loans converted to term loans	0
Total Loans Receivable	6,343
Energy \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	2,451
Revolving loans converted to term loans	0
Total Loans Receivable	2,451
Commercial real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2022	85,098
2021	351,190
2020	158,337
2019	121,898
2018	89,647
2017 and Prior	103,684
Revolving loans	330,590
Revolving loans converted to term loans	135,211
Total Loans Receivable	1,375,655	1,278,479
Commercial real estate \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	3,750
2020	303
2019	0
2018	83
2017 and Prior	1,136
Revolving loans	0
Revolving loans converted to term loans	3,051
Commercial real estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2022	74,272
2021	319,575
2020	158,034
2019	121,203
2018	82,028
2017 and Prior	97,987
Revolving loans	330,590
Revolving loans converted to term loans	82,459
Total Loans Receivable	1,266,148
Commercial real estate \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	27,210
2020	0
2019	0
2018	7,536
2017 and Prior	761
Revolving loans	0
Revolving loans converted to term loans	48,709
Total Loans Receivable	84,216
Commercial real estate \| Substandard \| Accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	10,826
2021	655
2020	0
2019	695
2018	0
2017 and Prior	3,801
Revolving loans	0
Revolving loans converted to term loans	992
Total Loans Receivable	16,969
Commercial real estate \| Substandard \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	3,750
2020	303
2019	0
2018	83
2017 and Prior	1,135
Revolving loans	0
Revolving loans converted to term loans	3,051
Total Loans Receivable	8,322
Commercial real estate \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Construction and land development
Financing Receivable, Credit Quality Indicator [Line Items]
2022	86,020
2021	228,922
2020	141,357
2019	73,650
2018	20,346
2017 and Prior	4,611
Revolving loans	8,632
Revolving loans converted to term loans	0
Total Loans Receivable	563,538	574,852
Construction and land development \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Construction and land development \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2022	86,020
2021	228,922
2020	141,357
2019	73,650
2018	20,346
2017 and Prior	4,611
Revolving loans	8,632
Revolving loans converted to term loans	0
Total Loans Receivable	563,538
Construction and land development \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Construction and land development \| Substandard \| Accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Construction and land development \| Substandard \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Construction and land development \| Doubtful
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	0
Residential real estate
Financing Receivable, Credit Quality Indicator [Line Items]
2022	12,954
2021	80,786
2020	129,918
2019	48,600
2018	53,487
2017 and Prior	38,565
Revolving loans	1,208
Revolving loans converted to term loans	201
Total Loans Receivable	365,719	360,046
Residential real estate \| Non-accrual
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	0
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	201
Residential real estate \| Pass
Financing Receivable, Credit Quality Indicator [Line Items]
2022	12,954
2021	77,243
2020	126,735
2019	48,600
2018	53,487
2017 and Prior	38,565
Revolving loans	1,208
Revolving loans converted to term loans	0
Total Loans Receivable	358,792
Residential real estate \| Special Mention
Financing Receivable, Credit Quality Indicator [Line Items]
2022	0
2021	217
2020	0
2019	0
2018	0
2017 and Prior	0
Revolving loans	0
Revolving loans converted to term loans	0
Total Loans Receivable	217
Residential real estate \| Substandard \| Accrual
Financing Receivable, Credit Quality Indicator [Line Items]

Loans and Allowance for Loan Losses ("ALLL") - Internal Risk Ratings (Details) - USD ($)
$ in Thousands

Mar. 31, 2022

Dec. 31, 2021

Financing Receivable, Credit Quality Indicator [Line Items]

$ 297,233

1,086,026

574,140

324,390