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Loans - Schedule of Loan Portfolio Summarized by the Past Due Status (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 7,665	$ 10,145
Current	1,693,218	1,262,456
Total Loans Receivable	1,700,883	1,272,601	$ 1,288,285
Loans Receivable greater than 90 Days and Accruing	1,743	1,219
30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	2,968	3,815
60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,063	3,654
Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,634	2,676
Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Past Due	222	43
Current	344,789	149,272
Total Loans Receivable	345,011	149,315	163,718
Loans Receivable greater than 90 Days and Accruing	23	4
Commercial and industrial | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	21	16
Commercial and industrial | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	177	23
Commercial and industrial | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	24	4
Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	3,707	4,921
Current	750,367	562,127
Total Loans Receivable	754,074	567,048	557,655
Loans Receivable greater than 90 Days and Accruing	18	0
Commercial real estate | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,728	1,388
Commercial real estate | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	190	2,247
Commercial real estate | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,789	1,286
Commercial real estate construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	78
Current	50,367	26,338
Total Loans Receivable	50,367	26,416	28,061
Loans Receivable greater than 90 Days and Accruing	0	0
Commercial real estate construction | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	78
Commercial real estate construction | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Commercial real estate construction | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Residential mortgage
Financing Receivable, Past Due [Line Items]
Total Past Due	2,842	4,476
Current	425,638	403,861
Total Loans Receivable	428,480	408,337	415,277
Loans Receivable greater than 90 Days and Accruing	1,579	1,181
Residential mortgage | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	466	1,918
Residential mortgage | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	678	1,206
Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,698	1,352
Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Total Past Due	789	562
Current	108,504	107,485
Total Loans Receivable	109,293	108,047	109,630
Loans Receivable greater than 90 Days and Accruing	123	15
Home equity lines of credit | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	666	377
Home equity lines of credit | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	170
Home equity lines of credit | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	123	15
Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	105	65
Current	13,553	13,373
Total Loans Receivable	13,658	13,438	$ 13,944
Loans Receivable greater than 90 Days and Accruing	0	19
Consumer | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	87	38
Consumer | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	18	8
Consumer | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	19
Originated Loans
Financing Receivable, Past Due [Line Items]
Total Past Due	5,591	8,045
Current	1,256,106	1,091,581
Total Loans Receivable	1,261,697	1,099,626
Loans Receivable greater than 90 Days and Accruing	1,256	1,084
Originated Loans | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,977	2,223
Originated Loans | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	467	3,281
Originated Loans | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	3,147	2,541
Originated Loans | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Past Due	22	20
Current	296,847	145,736
Total Loans Receivable	296,869	145,756
Loans Receivable greater than 90 Days and Accruing	0	4
Originated Loans | Commercial and industrial | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	21	16
Originated Loans | Commercial and industrial | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Originated Loans | Commercial and industrial | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1	4
Originated Loans | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	3,374	3,858
Current	472,679	448,078
Total Loans Receivable	476,053	451,936
Loans Receivable greater than 90 Days and Accruing	18	0
Originated Loans | Commercial real estate | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,442	325
Originated Loans | Commercial real estate | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	143	2,247
Originated Loans | Commercial real estate | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,789	1,286
Originated Loans | Commercial real estate construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	78
Current	37,126	24,099
Total Loans Receivable	37,126	24,177
Loans Receivable greater than 90 Days and Accruing	0	0
Originated Loans | Commercial real estate construction | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	78
Originated Loans | Commercial real estate construction | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Originated Loans | Commercial real estate construction | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Originated Loans | Residential mortgage
Financing Receivable, Past Due [Line Items]
Total Past Due	1,840	3,806
Current	353,614	367,538
Total Loans Receivable	355,454	371,344
Loans Receivable greater than 90 Days and Accruing	1,180	1,061
Originated Loans | Residential mortgage | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	235	1,625
Originated Loans | Residential mortgage | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	306	949
Originated Loans | Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	1,299	1,232
Originated Loans | Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Total Past Due	254	218
Current	83,692	92,864
Total Loans Receivable	83,946	93,082
Loans Receivable greater than 90 Days and Accruing	58	0
Originated Loans | Home equity lines of credit | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	196	141
Originated Loans | Home equity lines of credit | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	77
Originated Loans | Home equity lines of credit | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	58	0
Originated Loans | Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	101	65
Current	12,148	13,266
Total Loans Receivable	12,249	13,331
Loans Receivable greater than 90 Days and Accruing	0	19
Originated Loans | Consumer | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	83	38
Originated Loans | Consumer | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	18	8
Originated Loans | Consumer | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	19
Acquired Loans
Financing Receivable, Past Due [Line Items]
Total Past Due	2,074	2,100
Current	437,112	170,875
Total Loans Receivable	439,186	172,975
Loans Receivable greater than 90 Days and Accruing	487	135
Acquired Loans | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	991	1,592
Acquired Loans | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	596	373
Acquired Loans | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	487	135
Acquired Loans | Commercial and industrial
Financing Receivable, Past Due [Line Items]
Total Past Due	200	23
Current	47,942	3,536
Total Loans Receivable	48,142	3,559
Loans Receivable greater than 90 Days and Accruing	23	0
Acquired Loans | Commercial and industrial | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial and industrial | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	177	23
Acquired Loans | Commercial and industrial | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	23	0
Acquired Loans | Commercial real estate
Financing Receivable, Past Due [Line Items]
Total Past Due	333	1,063
Current	277,688	114,049
Total Loans Receivable	278,021	115,112
Loans Receivable greater than 90 Days and Accruing	0	0
Acquired Loans | Commercial real estate | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	286	1,063
Acquired Loans | Commercial real estate | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	47	0
Acquired Loans | Commercial real estate | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate construction
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Current	13,241	2,239
Total Loans Receivable	13,241	2,239
Loans Receivable greater than 90 Days and Accruing	0	0
Acquired Loans | Commercial real estate construction | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate construction | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate construction | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Residential mortgage
Financing Receivable, Past Due [Line Items]
Total Past Due	1,002	670
Current	72,024	36,323
Total Loans Receivable	73,026	36,993
Loans Receivable greater than 90 Days and Accruing	399	120
Acquired Loans | Residential mortgage | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	231	293
Acquired Loans | Residential mortgage | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	372	257
Acquired Loans | Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	399	120
Acquired Loans | Home equity lines of credit
Financing Receivable, Past Due [Line Items]
Total Past Due	535	344
Current	24,812	14,621
Total Loans Receivable	25,347	14,965
Loans Receivable greater than 90 Days and Accruing	65	15
Acquired Loans | Home equity lines of credit | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	470	236
Acquired Loans | Home equity lines of credit | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	93
Acquired Loans | Home equity lines of credit | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	65	15
Acquired Loans | Consumer
Financing Receivable, Past Due [Line Items]
Total Past Due	4	0
Current	1,405	107
Total Loans Receivable	1,409	107
Loans Receivable greater than 90 Days and Accruing	0	0
Acquired Loans | Consumer | 30–59 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	4	0
Acquired Loans | Consumer | 60–89 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Consumer | Greater than 90 Days Past Due
Financing Receivable, Past Due [Line Items]
Total Past Due	$ 0	$ 0

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