Allowance for Loan and Lease Losses (the "Allowance") (Tables)

3 Months Ended

Mar. 31, 2019

Allowance for Loan Losses (the Allowance)

Roll-forward of allowance for loan and lease losses by portfolio segment

	Balance,					Balance,
(dollars in thousands)	December 31, 2018		Charge-offs	Recoveries	Provision	March 31, 2019
Commercial mortgage	$	3,209	—	3	(49)	3,163
Home Equity lines and loans		323	—	3	15	341
Residential mortgage		191	—	—	21	212
Construction		1,627	—	—	175	1,802
Commercial and industrial		2,690	—	97	59	2,846
Consumer		3	—	1	—	4
Leases		10	—	—	(2)	8
Total	$	8,053	—	104	219	8,376

	Balance,					Balance,
(dollars in thousands)	December 31, 2017		Charge-offs	Recoveries	Provision	March 31, 2018
Commercial mortgage	$	2,434	—	2	130	2,566
Home Equity lines and loans		280	(66)	2	46	262
Residential mortgage		82	—	—	45	127
Construction		1,689	—	—	172	1,861
Commercial and industrial		2,214	(80)	16	165	2,315
Consumer		5	—	1	(3)	3
Leases		5	—	—	(1)	4
Total	$	6,709	(146)	21	554	7,138

Schedule of allocation of the allowance for loan and lease losses

	Allowance on loans and leases				Carrying value of loans and leases
	Individually		Collectively		Individually		Collectively
March 31, 2019	evaluated		evaluated		evaluated		evaluated
(dollars in thousands)	for impairment		for impairment	Total	for impairment		for impairment	Total
Commercial mortgage	$	—	3,163	3,163	$	1,921	323,922	325,843
Home Equity lines and loans		—	341	341		81	81,858	81,939
Residential mortgage		—	212	212		857	43,996	44,853
Construction		—	1,802	1,802		1,294	126,369	127,663
Commercial and industrial		133	2,713	2,846		1,448	267,580	269,028
Consumer		—	4	4		—	751	751
Leases		—	8	8		—	1,159	1,159
Total	$	133	8,243	8,376	$	5,601	845,635	851,236	(1)

	Allowance on loans and leases				Carrying value of loans and leases
	Individually		Collectively		Individually		Collectively
December 31, 2018	evaluated		evaluated		evaluated		evaluated
(dollars in thousands)	for impairment		for impairment	Total	for impairment		for impairment	Total
Commercial mortgage	$	—	3,209	3,209	$	1,929	323,464	325,393
Home Equity lines and loans		—	323	323		83	82,203	82,286
Residential mortgage		—	191	191		969	40,969	41,938
Construction		—	1,627	1,627		1,281	115,625	116,906
Commercial and industrial		103	2,587	2,690		1,537	258,269	259,806
Consumer		—	3	3		—	701	701
Leases		—	10	10		—	1,335	1,335
Total	$	103	7,950	8,053	$	5,799	822,566	828,365	(1)

(1) Excludes deferred fees and loans carried at fair value.

Schedule of carrying value of loans and leases by portfolio segment based on the credit quality indicators

March 31, 2019			Special
(dollars in thousands)	Pass		mention	Substandard	Doubtful	Total
Commercial mortgage	$	320,616	3,347	1,880	—	325,843
Home equity lines and loans		81,776	—	163	—	81,939
Construction		125,000	2,663	—	—	127,663
Commercial and industrial		244,843	11,951	12,204	30	269,028
Total	$	772,235	17,961	14,247	30	804,473

December 31, 2018			Special
(dollars in thousands)	Pass		mention	Substandard	Doubtful	Total
Commercial mortgage	$	320,130	3,713	1,550	—	325,393
Home equity lines and loans		82,121	—	165	—	82,286
Construction		114,249	2,657	—	—	116,906
Commercial and industrial		239,181	12,620	7,975	30	259,806
Total	$	755,681	18,990	9,690	30	784,391

Schedule of allocations based on the credit quality indicators

	March 31, 2019				December 31, 2018
(dollars in thousands)	Performing		Nonperforming	Total	Performing		Nonperforming	Total
Residential mortgage	$	43,996	857	44,853	$	40,969	969	41,938
Consumer		751	—	751		701	—	701
Leases		1,159	—	1,159		1,335	—	1,335
Total	$	45,906	857	46,763	$	43,005	969	43,974

Schedule of recorded investment and principal balance of impaired loans

	At March 31, 2019					At December 31, 2018
					Average				Average
	Recorded		Principal	Related	recorded	Recorded	Principal	Related	recorded
(dollars in thousands)	investment		balance	allowance	investment	investment	balance	allowance	investment
Impaired loans with related allowance:
Commercial mortgage	$	—	—	—	—	—	—	—	—
Commercial and industrial		671	674	133	673	676	679	103	680
Home equity lines and loans		—	—	—	—	—	—	—	—
Residential mortgage		—	—	—	—	—	—	—	—
Construction		—	—	—	—	—	—	—	—
Total		671	674	133	673	676	679	103	680
Impaired loans without related allowance:
Commercial mortgage	$	1,921	2,371	—	1,926	1,929	2,379	—	1,982
Commercial and industrial		777	863	—	797	861	945	—	885
Home equity lines and loans		81	89	—	82	83	89	—	84
Residential mortgage		857	857	—	857	969	978	—	978
Construction		1,294	1,294	—	1,287	1,281	1,281	—	1,293
Total		4,930	5,474	—	4,949	5,123	5,672	—	5,222
Grand Total	$	5,601	6,148	133	5,622	5,799	6,351	103	5,902

Schedule of balances of TDRs

	March 31,		December 31,
(dollars in thousands)	2019		2018
TDRs included in nonperforming loans and leases	$	1,213	1,219
TDRs in compliance with modified terms		2,940	3,047
Total TDRs	$	4,153	4,266