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Loans and Leases and Allowance for Loan and Lease Losses - Loan Risk Rating (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 2,468,318	$ 2,382,243
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,162,491	1,012,976
Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	444,640	443,930
Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	300,704	278,075
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	496,114	634,446
Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	53,038
Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,331	12,816
All Other Loans and leases [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,438,216	2,350,179
All Other Loans and leases [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,385,529	2,247,263
All Other Loans and leases [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	44,093	91,611
All Other Loans and leases [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,194	4,812
All Other Loans and leases [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,355	6,359
All Other Loans and leases [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	45	134
All Other Loans and leases [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,151,120	996,853
All Other Loans and leases [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,109,079	922,153
All Other Loans and leases [Member] | Commercial Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	37,077	66,287
All Other Loans and leases [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,881	4,446
All Other Loans and leases [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,083	3,967
All Other Loans and leases [Member] | Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	435,665	433,672
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	431,122	417,302
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,637	14,218
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	42	46
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,864	2,020
All Other Loans and leases [Member] | Consumer Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans		86
All Other Loans and leases [Member] | Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	295,439	272,727
All Other Loans and leases [Member] | Construction and Land Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	295,119	269,350
All Other Loans and leases [Member] | Construction and Land Development [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	243	3,296
All Other Loans and leases [Member] | Construction and Land Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	77	81
All Other Loans and leases [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	495,853	634,138
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	490,144	625,836
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,087	7,673
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	271	320
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	306	261
All Other Loans and leases [Member] | Commercial and Industrial [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	45	48
All Other Loans and leases [Member] | Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	48,824
All Other Loans and leases [Member] | Leases Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	48,824
All Other Loans and leases [Member] | Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,315	12,789
All Other Loans and leases [Member] | Consumer and Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,241	12,622
All Other Loans and leases [Member] | Consumer and Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	49	137
All Other Loans and leases [Member] | Consumer and Other [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	25	30
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	30,102	32,064
Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	22,078	20,749
Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,254	7,427
Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	74	76
Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,696	3,812
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	11,371	16,123
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,699	11,072
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,570	3,381
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	17	19
Purchased Credit Impaired Loans [Member] | Commercial Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,085	1,651
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,975	10,258
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	7,593	8,382
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	234	224
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	57	57
Purchased Credit Impaired Loans [Member] | Consumer Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,091	1,595
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,265	5,348
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,342	1,008
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,449	3,820
Purchased Credit Impaired Loans [Member] | Construction and Land Development [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	474	520
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	261	308
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	215	262
Purchased Credit Impaired Loans [Member] | Commercial and Industrial [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	46	46
Purchased Credit Impaired Loans [Member] | Leases Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,214
Purchased Credit Impaired Loans [Member] | Leases Portfolio Segment [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,214
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	16	27
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	15	25
Purchased Credit Impaired Loans [Member] | Consumer and Other [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1	$ 2

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
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