Allowance for Loan Losses (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Allowance for loan losses:
Beginning Balance	$ 19,372	$ 19,321	$ 19,006	$ 17,461
Charge-offs	397	372	1,216	1,046
Recoveries	126	379	411	2,185
Provision (release)	550		1,450	728
Ending Balance	19,651	19,328	19,651	19,328
Ending balance: Individually evaluated for impairment	274	373	274	373
Ending balance: Collectively evaluated for impairment	18,805	18,955	18,805	18,955
Ending balance: Acquired and accounted for ASC 310-30	572		572
Loans:
Ending balance	1,899,811	1,834,949	1,899,811	1,834,949	$ 1,897,027
Ending balance	1,899,811		1,899,811
Ending balance: Individually evaluated for impairment	17,909	16,725	17,909	16,725
Ending balance: Collectively evaluated for impairment	1,872,767	1,807,337	1,872,767	1,807,337
Ending balance: Acquired and accounted for ASC 310-30	9,135	10,887	9,135	10,887
Commercial Portfolio Segment [Member]
Loans:
Ending balance	333,664		333,664		314,323
Commercial without Leases
Allowance for loan losses:
Beginning Balance	3,377	2,676	2,832	2,453
Charge-offs	20	7	99	38
Recoveries	10	32	46	141
Provision (release)	(49)	96	539	241
Ending Balance	3,318	2,797	3,318	2,797
Ending balance: Individually evaluated for impairment	110		110
Ending balance: Collectively evaluated for impairment	3,208	2,797	3,208	2,797
Loans:
Ending balance		306,407		306,407
Ending balance	333,664		333,664
Ending balance: Individually evaluated for impairment	148		148
Ending balance: Collectively evaluated for impairment	333,516	306,407	333,516	306,407
Commercial leases
Allowance for loan losses:
Beginning Balance	961		734
Charge-offs	47		47
Provision (release)	66		293
Ending Balance	980		980
Ending balance: Collectively evaluated for impairment	980		980
Loans:
Ending balance	108,152		108,152
Ending balance: Individually evaluated for impairment	74		74
Ending balance: Collectively evaluated for impairment	108,078		108,078
Finance Leases Financing Receivable [Member]
Allowance for loan losses:
Beginning Balance		634		692
Charge-offs				13
Provision (release)		31		(14)
Ending Balance		665		665
Ending balance: Collectively evaluated for impairment		665		665
Loans:
Ending balance	108,152	70,661	108,152	70,661	78,806
Ending balance: Collectively evaluated for impairment		70,661		70,661
Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses:
Beginning Balance	10,517	10,537	10,470	9,522
Charge-offs	159	201	432	609
Recoveries	12	37	47	425
Provision (release)	(88)	(144)	197	891
Ending Balance	10,282	10,229	10,282	10,229
Ending balance: Individually evaluated for impairment	37	185	37	185
Ending balance: Collectively evaluated for impairment	9,690	10,044	9,690	10,044
Ending balance: Acquired and accounted for ASC 310-30	555		555
Loans:
Ending balance		808,310		808,310
Ending balance	830,713		830,713
Ending balance: Individually evaluated for impairment	7,671	5,782	7,671	5,782
Ending balance: Collectively evaluated for impairment	819,109	798,402	819,109	798,402
Ending balance: Acquired and accounted for ASC 310-30	3,933	4,126	3,933	4,126
Residential Portfolio Segment [Member]
Allowance for loan losses:
Beginning Balance	1,790	1,818	1,931	1,846
Charge-offs	3		21	(55)
Recoveries	22	83	86	1,099
Provision (release)	56	67	(131)	(1,032)
Ending Balance	1,865	1,968	1,865	1,968
Ending balance: Individually evaluated for impairment	65	59	65	59
Ending balance: Collectively evaluated for impairment	1,800	1,909	1,800	1,909
Loans:
Ending balance		399,581		399,581
Ending balance	393,076		393,076
Ending balance: Individually evaluated for impairment	7,509	8,740	7,509	8,740
Ending balance: Collectively evaluated for impairment	381,002	384,858	381,002	384,858
Ending balance: Acquired and accounted for ASC 310-30	4,565	5,983	4,565	5,983
Consumer Portfolio Segment [Member]
Allowance for loan losses:
Beginning Balance	1,335	1,390	1,449	1,446
Charge-offs	19	49	298	141
Recoveries	21	139	79	277
Provision (release)	(74)	(372)	33	(474)
Ending Balance	1,263	1,108	1,263	1,108
Ending balance: Individually evaluated for impairment	55	61	55	61
Ending balance: Collectively evaluated for impairment	1,208	1,047	1,208	1,047
Loans:
Ending balance		122,022		122,022
Ending balance	126,309		126,309
Ending balance: Individually evaluated for impairment	2,391	2,054	2,391	2,054
Ending balance: Collectively evaluated for impairment	123,918	119,968	123,918	119,968
Unallocated Financing Receivables [Member]
Allowance for loan losses:
Beginning Balance	572	868	621	579
Charge-offs	142	115	311	316
Recoveries	61	56	152	208
Provision (release)	646	696	675	1,034
Ending Balance	1,137	1,505	1,137	1,505
Ending balance: Individually evaluated for impairment	7	26	7	26
Ending balance: Collectively evaluated for impairment	1,113	1,479	1,113	1,479
Ending balance: Acquired and accounted for ASC 310-30	17		17
Loans:
Ending balance	16,194	14,317	16,194	14,317	$ 16,092
Ending balance	16,194		16,194
Ending balance: Individually evaluated for impairment	22	40	22	40
Ending balance: Collectively evaluated for impairment	16,172	14,277	16,172	14,277
Construction Loans \| Commercial Real Estate Portfolio Segment [Member]
Allowance for loan losses:
Beginning Balance	820	1,398	969	923
Charge-offs	7		8	(16)
Recoveries		32		35
Recoveries, net			1
Provision (release)	(7)	(374)	(156)	82
Ending Balance	806	1,056	806	1,056
Ending balance: Individually evaluated for impairment		42		42
Ending balance: Collectively evaluated for impairment	806	1,014	806	1,014
Loans:
Ending balance		113,651		113,651
Ending balance	91,703		91,703
Ending balance: Individually evaluated for impairment	94	109	94	109
Ending balance: Collectively evaluated for impairment	90,972	112,764	90,972	112,764
Ending balance: Acquired and accounted for ASC 310-30	$ 637	$ 778	$ 637	$ 778

Amount of recovery of loans and lease receivable, net of adjustments.

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The valuation allowance for financing receivables that are expected to be uncollectible related to acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans and purchased credit impaired loans. Excludes loans and leases covered under loss sharing agreements.

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Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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Fair value at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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

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