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Allowance for Loan Losses (the Allowance) - Allowance allocated by portfolio segment (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Impaired Loans
Allowance on loans and leases individually evaluated for impairment	$ 1,645	$ 136
Allowance on loans and leases collectively evaluated for impairment	16,122	9,377
Total	17,767	9,513	$ 8,053
Carrying value of loans and leases individually evaluated for impairment	10,380	7,307
Carrying value of loans and leases collectively evaluated for impairment	1,267,194	948,646
Total	1,277,574	955,953
Commercial mortgage
Impaired Loans
Allowance on loans and leases collectively evaluated for impairment	7,451	3,426
Total	7,451	3,426	3,209
Carrying value of loans and leases individually evaluated for impairment	1,606	2,138
Carrying value of loans and leases collectively evaluated for impairment	483,497	360,452
Total	485,103	362,590
Home equity lines and loans
Impaired Loans
Allowance on loans and leases individually evaluated for impairment	9	46
Allowance on loans and leases collectively evaluated for impairment	425	296
Total	434	342	323
Carrying value of loans and leases individually evaluated for impairment	921	536
Carrying value of loans and leases collectively evaluated for impairment	64,066	81,047
Total	64,987	81,583
Residential mortgage
Impaired Loans
Allowance on loans and leases individually evaluated for impairment	73
Allowance on loans and leases collectively evaluated for impairment	312	179
Total	385	179	191
Carrying value of loans and leases individually evaluated for impairment	1,817	854
Carrying value of loans and leases collectively evaluated for impairment	38,455	42,265
Total	40,272	43,119
Construction
Impaired Loans
Allowance on loans and leases collectively evaluated for impairment	2,421	2,362
Total	2,421	2,362	1,627
Carrying value of loans and leases individually evaluated for impairment	1,206	1,247
Carrying value of loans and leases collectively evaluated for impairment	139,040	170,797
Total	140,246	172,044
Commercial and industrial, including leases
Impaired Loans
Allowance on loans and leases individually evaluated for impairment	1,563	27
Allowance on loans and leases collectively evaluated for impairment	3,868	2,657
Total	5,431	2,684	2,612
Carrying value of loans and leases individually evaluated for impairment	4,645	1,288
Carrying value of loans and leases collectively evaluated for impairment	257,105	272,013
Total	261,750	273,301
Small business loans
Impaired Loans
Allowance on loans and leases individually evaluated for impairment		63
Allowance on loans and leases collectively evaluated for impairment	1,259	446
Total	1,259	509	78
Carrying value of loans and leases individually evaluated for impairment	185	1,244
Carrying value of loans and leases collectively evaluated for impairment	49,357	20,372
Total	49,542	21,616
Paycheck Protection Program loans
Impaired Loans
Carrying value of loans and leases collectively evaluated for impairment	203,543
Total	203,543
MainStreet Lending Program Loans
Impaired Loans
Carrying value of loans and leases collectively evaluated for impairment	580
Total	580
Consumer
Impaired Loans
Allowance on loans and leases collectively evaluated for impairment	4	6
Total	4	6	3
Carrying value of loans and leases collectively evaluated for impairment	511	1,003
Total	511	1,003
Leases
Impaired Loans
Allowance on loans and leases collectively evaluated for impairment	382	5
Total	382	5	$ 10
Carrying value of loans and leases collectively evaluated for impairment	31,040	697
Total	$ 31,040	$ 697

X

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