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Loans - Schedule of Loan Portfolio Summarized by the Past Due Status (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017	Sep. 30, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 9,355	$ 12,281
Current	1,263,091	1,231,889
Total Loans Receivable	1,272,446	1,244,170	$ 1,236,370
Loans Receivable greater than 90 Days and Accruing	2,342	1,507
30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,843	6,087
60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,913	1,398
Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	5,599	4,796
Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	73	1,717
Current	176,000	164,112
Total Loans Receivable	176,073	165,829	169,037
Loans Receivable greater than 90 Days and Accruing	4	4
Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	69	138
Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	76
Commercial and industrial | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4	1,503
Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,405	3,069
Current	518,429	489,690
Total Loans Receivable	522,834	492,759	483,673
Loans Receivable greater than 90 Days and Accruing	857	88
Commercial real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	404	1,352
Commercial real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	569	317
Commercial real estate | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,432	1,400
Commercial real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	77	252
Current	18,643	35,308
Total Loans Receivable	18,720	35,560	39,779
Loans Receivable greater than 90 Days and Accruing	77	0
Commercial real estate construction | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	252
Commercial real estate construction | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Commercial real estate construction | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	77	0
Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,231	6,523
Current	430,304	419,370
Total Loans Receivable	433,535	425,893	421,732
Loans Receivable greater than 90 Days and Accruing	1,126	1,159
Residential mortgage | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	314	3,936
Residential mortgage | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,257	950
Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,660	1,637
Home equity lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,461	619
Current	105,218	107,173
Total Loans Receivable	106,679	107,792	105,113
Loans Receivable greater than 90 Days and Accruing	245	253
Home equity lines of credit | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,005	337
Home equity lines of credit | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	63	29
Home equity lines of credit | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	393	253
Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	108	101
Current	14,497	16,236
Total Loans Receivable	14,605	16,337	$ 17,036
Loans Receivable greater than 90 Days and Accruing	33	3
Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	51	72
Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	24	26
Consumer | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	33	3
Originated Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	7,285	9,758
Current	1,056,487	993,786
Total Loans Receivable	1,063,772	1,003,544
Loans Receivable greater than 90 Days and Accruing	1,213	1,300
Originated Loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	968	4,075
Originated Loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,847	1,094
Originated Loans | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4,470	4,589
Originated Loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	73	1,634
Current	170,545	157,821
Total Loans Receivable	170,618	159,455
Loans Receivable greater than 90 Days and Accruing	4	4
Originated Loans | Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	69	55
Originated Loans | Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	76
Originated Loans | Commercial and industrial | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	4	1,503
Originated Loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,330	2,153
Current	387,291	349,792
Total Loans Receivable	390,621	351,945
Loans Receivable greater than 90 Days and Accruing	0	88
Originated Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	186	436
Originated Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	569	317
Originated Loans | Commercial real estate | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,575	1,400
Originated Loans | Commercial real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	252
Current	14,774	28,178
Total Loans Receivable	14,774	28,430
Loans Receivable greater than 90 Days and Accruing	0	0
Originated Loans | Commercial real estate construction | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	252
Originated Loans | Commercial real estate construction | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Originated Loans | Commercial real estate construction | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Originated Loans | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3,087	5,152
Current	382,772	361,772
Total Loans Receivable	385,859	366,924
Loans Receivable greater than 90 Days and Accruing	1,001	1,022
Originated Loans | Residential mortgage | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	298	3,006
Originated Loans | Residential mortgage | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,254	646
Originated Loans | Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,535	1,500
Originated Loans | Home equity lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	687	466
Current	86,876	81,870
Total Loans Receivable	87,563	82,336
Loans Receivable greater than 90 Days and Accruing	175	183
Originated Loans | Home equity lines of credit | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	364	254
Originated Loans | Home equity lines of credit | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	29
Originated Loans | Home equity lines of credit | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	323	183
Originated Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	108	101
Current	14,229	14,353
Total Loans Receivable	14,337	14,454
Loans Receivable greater than 90 Days and Accruing	33	3
Originated Loans | Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	51	72
Originated Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	24	26
Originated Loans | Consumer | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	33	3
Acquired Loans
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	2,070	2,523
Current	206,604	238,103
Total Loans Receivable	208,674	240,626
Loans Receivable greater than 90 Days and Accruing	1,129	207
Acquired Loans | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	875	2,012
Acquired Loans | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	66	304
Acquired Loans | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,129	207
Acquired Loans | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	83
Current	5,455	6,291
Total Loans Receivable	5,455	6,374
Loans Receivable greater than 90 Days and Accruing	0	0
Acquired Loans | Commercial and industrial | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	83
Acquired Loans | Commercial and industrial | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial and industrial | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	1,075	916
Current	131,138	139,898
Total Loans Receivable	132,213	140,814
Loans Receivable greater than 90 Days and Accruing	857	0
Acquired Loans | Commercial real estate | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	218	916
Acquired Loans | Commercial real estate | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	857	0
Acquired Loans | Commercial real estate construction
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	77	0
Current	3,869	7,130
Total Loans Receivable	3,946	7,130
Loans Receivable greater than 90 Days and Accruing	77	0
Acquired Loans | Commercial real estate construction | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate construction | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Commercial real estate construction | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	77	0
Acquired Loans | Residential mortgage
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	144	1,371
Current	47,532	57,598
Total Loans Receivable	47,676	58,969
Loans Receivable greater than 90 Days and Accruing	125	137
Acquired Loans | Residential mortgage | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	16	930
Acquired Loans | Residential mortgage | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	3	304
Acquired Loans | Residential mortgage | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	125	137
Acquired Loans | Home equity lines of credit
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	774	153
Current	18,342	25,303
Total Loans Receivable	19,116	25,456
Loans Receivable greater than 90 Days and Accruing	70	70
Acquired Loans | Home equity lines of credit | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	641	83
Acquired Loans | Home equity lines of credit | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	63	0
Acquired Loans | Home equity lines of credit | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	70	70
Acquired Loans | Consumer
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Current	268	1,883
Total Loans Receivable	268	1,883
Loans Receivable greater than 90 Days and Accruing	0	0
Acquired Loans | Consumer | 30-59 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Consumer | 60-89 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	0	0
Acquired Loans | Consumer | Greater than 90 Days Past Due
Financing Receivable, Recorded Investment, Past Due [Line Items]
Total Past Due	$ 0	$ 0

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- Definition

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

+ References

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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